M54 lifter misfire. Please try this first before that is done.
M54 lifter misfire. I have replaced all the spark plugs with NGKs and replaced all 6 coil packs. Sep 26, 2011 · A ticking lifter was very common at our AXs on these engines, almost always cured with an extra qt. But some cars will have a particularly bad lifter or two Dec 1, 2022 · Started at 152k miles and currently sits around 155k. Cyl 6 runs the roughest/misfires according to INPA and has the most scratches (catches the fingernail). e. 5+ E46 non-Ms, all M54 E60s, and some X3s. It's just the nature of an older car with varnished up lifters. My 2004 X5 3. When I got it, it did sometimes cylinders 4 and 6 together, but now since im driving it daily it does only one, either 6 (which is most of the time) or 4. 1K views 16 replies 10 participants last post by NZ00Z3 Dec 18, 2021 Aaronward99 Discussion starter Aug 14, 2014 · So my engine has been making a "Ticking Noise" for some time now. Although it has been said that the N52 lifter tick does not seem to have any extensive effects on other engine parts, that claim is utterly without certainty; rattling and ticking noises could be attributed to any number of issues with your BMW’s engine, and could render your vehicle dangerous to drive. Oil Warning Light or Low Oil Pressure 7. Mar 24, 2024 · Diag says sporadic code. Noticed a few times under hard acceleration a misfire occurs. Ran the car disconnected. Our professionals are here to help make sure you find the answers you need to your questions and our community is here to help other brainstorm When your car misfires, you are likely to be concerned. Now I'm not saying May 24, 2022 · My journey to try diagnose a weird misfire/rough idle! 2002 E39 520i, M54 engine (Input much appreciated!!) In the process of rebuilding my lifters to fix coldstart misfire in the mornings when the temp is < 50 degrees. Yours is just a simple sticky lifter that I too have experienced it before. Doesn't stall though. Seems to be a fairly common issue of a rough idle and if it idles too long you’ll get misfires and a check engine light. This system uses hardened steel shims that are installed inside factory hydraulic lifters. Jan 22, 2015 · Hey guys, I recently purchased a 03 E46 M54 and having trouble diagnosing a cylinder 3 misfire ? Thing is its only at idle below 1000RPM, after that its Feb 1, 2017 · Hi, Anyone replace lifters M54 engine ? I got missfire if I leave the car to warmup at idle. Improve valvetrain reliability and precision. Mar 15, 2017 · So it turns out that BMW did change the M54 to low tension piston rings, confirmed by Fast BOB over on the 3 series side . Thankfully with this fix it runs like new Apr 4, 2022 · What Is An Engine Misfire? An engine misfire occurs when the air and fuel mixture inside the combustion chamber of your car’s engine does not ignite properly or at the right time. I’ve swapped the coils around but the codes haven’t followed. Hope to get some ideas to look at. I have a 2008 335xi with a misfire on cylinder 2. Hydraulic lifters wear out Mar 27, 2025 · Discover common problems with the BMW M54 engine, their symptoms, and how to address them for optimal performance. ofc after deleating errors and reseting dme - mo metter only thing i Most older cars with hydraulic lifters will tick a little bit all the time. But most people have no idea what lifters do to their engines. 3L Silverado or Sierra V6? Learn causes, symptoms, and expert repair tips to fix it for good. Misfires on cylinder one. Jun 16, 2020 · I have already swapped the plug and a coil but still cylinder 3. May 11, 2020 · m54 cylinder 2 misfire (e83) Jump to Latest 5. io/t/soundroll/your-love-is-what-i-needLicense code: JBPFE9FU5GO9EIIH Page 2 • If a tick noise is NOT present after running engine for at least 5 to 7 minutes, release the vehicle back to the customer. Read down post #9 for the full explanation. And the m54 has a ring seating blow by issue . I have done smoke test, compression, all are good. Refer to Valve Lifter Oil Manifold Replacement and Valve Lifter Replacement in SI. Just because hydraulic lifters are a technical component that you don’t see doesn’t mean that it won’t break. A custom camshaft is required. The cylinders these misfires occur in vary and every cylinder except #5 has sent the code at least once. :/ I'd really appreciate the help. I've replaced all the smaller vacuum lines as well as the two vacuum caps at the rear of the intake plenum. - I've replaced the coil 5 times now with differing Jan 14, 2021 · Still misfiring at idle. 0 and the rest got the MS45. Here are 5 common causes for a misfire and what it feels/sounds like Looks like a sticking lifter may of damaged this engine. So it is a matter of idling. From my personal experience the engine misfires Jan 14, 2016 · M54 Misfire/Injector Issues Jump to Latest 3. Considering it’s an M52/M54, it’s probably the latter. I already replaced the injector so I don't know why I'm still getting this code. Misfire or Rough Idle 3. 3L engines. Different this time, no engine management light, no real reduction in power, just misfiring on acceleration. 3L V8 engine, and also discovers an intermittent misfire in cylinder 1. No vacuum leaks etc (Just Replaced whole cooling system, PCV, Intake boots, etc). What I don't know is whether this engine would have gone another 100K miles before total cam or lifter failure, or another 20K miles. After removing the valve cover, he discovers a very loose Jun 5, 2015 · Most of this was summarized in this thread: - How to diagnose a M54 engine misfire (1) & a cold-engine intermittent misfire (1) & what you can expect for your smog emissions test results (1) DISCLAIMER: [I don't know anything about my M54 engine. Unusual Engine Noise Under Load 6. Schrick makes a conversion kit but wouldnt you need cams for solid lifters? Can you even get solid lifter cams for an M54 May 22, 2025 · Hydraulic lifters help operate the valves on your engine. Can someone Aug 2, 2021 · THE BMW DISA VALVE on your E46 with the M54 engine plays an important role in creating performance and fuel economy. My questions are: Would replacing spark plugs Dec 11, 2007 · Not shown are also codes P0300, P0304, P0305 (misfire codes) Things I ruled out: Coilpacks -I switched them around to different cylinders. Oct 27, 2015 · Hello, I have an 01 330i with a misfire issue that is driving me nuts Just two weeks ago it developed a misfire. it drives like my old M54B25 My car's got a problem. Could save you Dec 2, 2024 · M54B30 misfire after heavy load e53 m54 m54b30 missfire rough at idle Jump to Latest 43 views 0 replies 1 participant last post by Noby 6h ago Nov 29, 2021 · Infamous p0171 p0174 with misfires e46 misfire p0171 p0171 p0174 p0300 Jump to Latest 6. Before you get too deep into this thread, I believe most of the data is relevant to the 325/330 models, or typical the 2. Jun 9, 2017 · I've been searching over the past few weeks to find a decent thread about valve tick in our cars but haven't found anything substantial yet in regards to the potential damage caused to valve stems by stuck lifters; I'm hoping some of you can help me outagain. However, I got misfires and CEL on the drive home during a pull (I expected these may come up as there’s more stress on engine now). Tapping/rattling noise from the valve train area may have various different causes depending on engine oil level, engine/oil temperature, when the noise is heard Engine would misfire (shake) during cold start, go away after about a minute or two. I even swapped cylinder 6 The misfiring/ticking cylinder should obviously have less lift than the comparison cylinders if this is the result of a worn lifter roller and/or cam lobe. A misfiring or rough running engine and an illuminated check engine light are also symptoms of a bad hydraulic lifter. I replaced the fuel filter about 14k miles ago, so I'm skeptical this is a fuel issue. Nov 21, 2010 · As our beloved E39s get older, more misfire threads seem to appear, where "replace this" or "replace that" is thrown out as the solution. Just boom, engine light and rough running, smoke etc. Car put to storage for 4 months, jumped to life no problem. After I purchased the car, I replaced all gaskets related to intake & vacuum. Then do your best to pinpoint WHY you have a misfire. Please help thank you. Have you had any coolant loss by no leaks? As far as the fuel pressure goes, priming fuel pressure should be around 50psi on these engines. Here, we'll explain bad lifter symptoms, causes, and how to fix them. Customer: i have one bad cylinder or lifter, number 6, its making noise and the car is shaking , no power. Oil Inspection 4 Dec 11, 2022 · Backfire and misfire, 2006 bmw x3 2. 4K views 1 reply 2 participants last post by marcozandrini Jan 15, 2016 W Good morning, 2001 e39 525i with M54 6cyl. I have had a cold start misfire (that goes away after a block or two of driving) forever. Repair VANOS solenoids for the BMW N54 and N55 Oct 22, 2022 · What is BMW VANOS? Learn how to diagnose and repair failures with BMW's variable valve timing VANOS system. , the resultant lowering of oil temp. Good morning, 2001 e39 525i with M54 6cyl. Be sure to check the In the beginning, the misfire only happened when the car was fully up to running temp, and it’s an engine stalling misfire, not minor. Codes: Misfire on cylinder 2 and 5. Jun 10, 2011 · Is the m54 not well known for hydraulic lifters causing running problems? Think goodbob had problems with his Feb 28, 2010 · I have an issue with my e39 - It is an 2003 with the M54 engine and only 70k miles. The misfire goes away and check engine light goes off while driving randomly and the car drives perfectly. You could try moving the offending coil packs around and see if that makes a difference. This is opposite of what I thought as a cause of misfire:lifter bleeding down oil. You 2 options for lifters. Thinking it could be the coil since they are notorious for it. A leak down test will tell you if you have bad lifters, done correctly. Check plugs, coils, wiring, disa, ICV, MAF Jul 10, 2020 · P1353 - #6 misfire And usually P0300 (or something) General multi Misfire. Either way, lifter replacement is Jun 19, 2017 · VIN Decoder says I have M54 Engine P0300 - Random misfire P1347 - Misfire Cylinder 3 with fuel cut off P1351 - Misfire Cylinder 5 w/ f cut off Pending P1345 - Misfire Cylinder 2 w/ F cut off P1349 - Misfire cylinder 4 w/ F cut off Car runs really rough, and dies after 30 seconds of being started, unless you keep giving it a blip of the gas pedal. So, even if you’re paying a few dollars per lift, it can still add up quite a bit. This might not be as effective if the issue is intermittent, but it’s worth noting that failing coil packs have behaved in this way causing misfire under acceleration. still misfire on 2-4 cylinders 2 lifters i noticed where squeezed more then others , they where pushed in farther then others, i don't remember witch cylinders so after that i am always getting misfire codes on 2-4 cylinders. Really an engine for that matter. I was getting misfire codes for Jun 2, 2023 · Hey guys I have a question about E39 M54 B22 common missfire issues since diagnostic shows only P0304 fault and sometimes P306 I know that is misfire on cylinder 4 and 6 but I have no idea why. ,while a Chevy V-8 only needs 5 qts. Every time it happens, the engine was warm(hot) and in town. I've done quite a bit of searching and havent really found much. Scan for Trouble Codes 3. So to help avert some of those, let me state my problem, what I've done, and what I've researched. No CEL. I do not think there is a relationship between the MAF and the misfire. Please try this first before that is done. MAF - Cleaned it twice. None of it fixes the issue. The time now is 02:52 AM. Tapping/rattling noise from the valve train area may have various different causes depending on Mar 14, 2025 · Hydraulic Lifters Link to other parts of the project DIY: M54 engine disassembly Hydraulic lifters are a small but important part of the engine. I tore the whole top of the engine apart, replace lifters, rebuilt the vanos assembly, updated the ecu, checked my fuel pressure and injectors, replaced all coils and plugs. If the compression is OK it's almost guaranteed to NOT be the lifter. I owned the car for about half a year. 1 was a US only DME used on all 2003. It started at misfire awfully at a stop light and shaking the whole car. Oct 27, 2013 · Troubleshooting tips: -- If there is a binding HVA element in one or more cylinders as described above a misfire fault can typically be reproduced in the affected cylinder (s) by duplicating the conditions in which the misfire occurred according to the DME/ECM fault code description i. The Problem: The car misfires and hesitates under load at Sep 27, 2024 · -2018 Silverado 4x4 5. Loss of Power 5. 5L M52tu and 3. Feb 5, 2025 · Explore common BMW M54 engine problems, their symptoms, and solutions to maintain performance and reliability. Thanks a lot for info in the thread! The car is 07/2001 with M54B22. The problem: The engine starts fine but after +/- 20 seconds it begins to idle very rough and looses power. Spark plugs and coils are new. Feels VERY noticeably faster and pulls way harder, even for just Stage 1. Jan 14, 2020 · An engine misfire usually isn't serious but it should be addressed. If the misfire does Feb 11, 2013 · Assembled lifter. Spark plugs, piston cylinders, and such can all cause misfiring. My car (M54/ZF auto) had for 2 months, 3 times stalled while i was driving. Ticking or Tapping Noise from the Engine 2. Jan 16, 2012 · So tis the season for the usual car runs rough on start up, misfires, CEL/MIL, stalling. 7 misfire -This happened very quickly, no previous indications of issues-- tapping, rough idle or smoke. I’ve checked for air leaks and there was a tear in the lower boot which u replaced, & CCV. Cleared the code via the MHD app, restarted the car and it was back to smooth normal. Will list things out in point form so it's easier to follow progression of the Aug 3, 2025 · • P0300 – Multiple cylinder misfire • P0302 – Cylinder #2 misfire • P0305 – Cylinder #5 misfire Clearing the codes does nothing — they always return as soon as the problem comes back. Jan 10, 2011 · alright fanatics, so I changed my plugs but im still getting codes for random/cylender misfire (always says pending), and also bank 1 and 2 too system too lean, and two for manufacturer ignition control misfire or something along those lines. Dec 31, 2020 · I'll try to cut this down to the meat. If you want to use 33mm M52, M54, or S52 cam trays you can use used stock 33mm lifters or new INA 4200049100 lifters. . My mind is pretty set on the noise being my Hydraulic Valve Lifters after searching and looking at every possible thread. Nov 9, 2023 · Sometimes the misfire is shown on cylinder 4, but most of the time it is cylinder 6. of oil, which seemed silly when they already had 7 qts. Not sure if this helps. Read the scan tool and all of my cylinders were misfiring back and forth. 2. , at engine temperature = X, engine speed = X, etc. Attention: various BMW M54 engines were delivered as standard with 33mm diameter hydraulic lifters, please check diameter before ordering! Andy locates the clicking noise to the top driver side of the 5. Cared for, driven hard and preventatively repaired. Driving with a bad lifter can damage the catalytic converter, camshaft, and internal engine components The two most common reasons for the replacement of BMW hydraulic bucket tappets (HVA) found in M42, M44, M50, M52, M54, M60, M62, S50, S52 and S62 engines are: tapping/rattling noise from the valve train area or a binding HVA element. Compression is around 130, thought maybe the ring is a bit sticky, so added some Rislone Jan 24, 2014 · Does your M54 BMW engine have a misfire/ low compression ? Don't be quick to replace the engine. The owner said that the car was running fine before but sat during most of 2020 (corona lockdowns), and when he tried to drive it again, there was a cylinder 4 misfire. Ignition Feb 16, 2024 · The idle was rough going up and down so I read the diagnostic codes which said misfire cylinder 3, 4, 5 and also Fuel Control mixture. I finally tuned my 335i today. 5i m54 e83, it runs fine when over 1300rpm but below that it misfires and backfires May 27, 2009 · The two most common reasons for the replacement of BMW hydraulic bucket tappets (HVA) found in M42, M44, M50, M52, M54, M60, M62, S50, S52 and S62 engines are: tapping/rattling noise from the valve train area or a binding HVA element. Mar 14, 2023 · Symptoms Of A Bad Hydraulic Lifter The most common symptom of a bad hydraulic lifter is a misfiring engine on idle or when accelerating, together with engine noise. Metal Shavings in Oil Diagnosing the Problem 1. Poor Oil Pressure 7. Aug 8, 2012 · I'm still in the idea phase but I was wondering what is required to do a solid lifter conversion on an M54. Likely will go away after a good highway drive. If it is an exhaust valve, I can be getting higher cylinder pressures than normal, which can cause early detonation. Mechanic said that it is mostly the fourth cylinder since the fault code was there like 62 times always when cold starting. Thanks. That's why I don't think you need to be worried about your engine. It wasn't the same engine obviously, but the tick the lifter made was waaaaay louder and with a thin sound This is the easiest solid lifter conversion available and has been tested for several years in M50's making over 1000 whp and 9000 rpms. Scenario E46 320Ci M54 - Starting from cold Can feel car vibrating (misfiring) at initial idle of 1k, and this normally goes away once the idle drops down to 700rpm. I've replaced Cam and crank sensors Jun 19, 2019 · SOLVED: My misfires were caused by fouled/bad spark plugs. It's becoming very annoying to hear every time I'm stopped at a red light next to another car. The car always stores both banks lean air mixture faults, and then it will store cylinder #6 misfire (which I can feel as a singular misfire occasionally on cold Dec 22, 2021 · Hopefully there is a E53/M54 wizard out there that can assist me. Dec 1, 2011 · Evening all, I am a member on bimmerforums also and was just looking for a larger variety of opinions. 9K views 3 replies 3 participants last post by BlatantPotato Oct 6, 2022 omgmke Discussion starter called specialist, he set my timing second time. Rubber intake elbow, plugs, coils and crankcase vent pipes. 3 L83 -Cyl. My story: Two nights Hope everyone is well. EDIT DESCRIPTION: Random cold-start single-cylinder misfire with concomitant fuel shutoff lasting only a single ignition cycle (or OBDII code clear in lieu of an ignition cycle). Should I use an additive for lifters ? M54B30 engine, 205k miles, 5W40 Liqui Moly LL01 Dec 1, 2016 · Read the codes, and KNOW exactly what cylinder the misfire is on. It might be time to replace your engine lifter if it’s making unusual noises as a result of valve train lash. Still idles rough. that came back , i would shut the car off and restart for the misfire to go away. Having more than one bad lifter will Apr 17, 2012 · Here's my story, may help others: >Did easy misfire DIY first - swapped coils between cylinders and put in new plugs, and checked old plugs for signs of misfire. Decrease in Power and Performance 5. Mechanic sounds a bit thick. Truck was limped home immediately after and has only been started to test if tune-up resolved misfire and then to park in garage. The two most common reasons for the replacement of BMW hydraulic bucket tappets (HVA) found in M42, M44, M50, M52, M54, M60, M62, S50, S52 and S62 engines are: tapping/rattling noise from the Oct 14, 2020 · I swapped the coil, spark plug, and injector from cylinder 5 to cylinder 1, but the misfire stays with cylinder 5. Made no diff in the codes. Also the fuel filter and fuel pump are relatively new. Fuel pressure is 50psi New plugs We would like to show you a description here but the site won’t allow us. I was under the impression that the X3 3. Also in cold times only (except really rare <1% occasions). My ‘05 BMW 325i has an erratic idle and the scan tool shows misfires in all cylinders. I read somewhere it could be clogged cats Mar 13, 2013 · I have gotten a P13B6 code on two separate occasions, which from what I can tell is "detonation detection system misfire". Replaced coil pack, and plugs, continued driving. Please help me figure out my misfiring problem: The Car: 2003 325ci (coupe), M54 inline 6 with MSS43 DME (ECU) and a ZF auto. Introduction TThe N54 powered BMWs respond amazingly well to tuning, but the increased power has caused some owners to experience misfire issues. Sep 16, 2015 · Hello lads, here is my wreck nerving already problem. If I drive the car to warmup I don't have missfire on cyl 1. 0 M54 engine. Ideally we want the round part of the camshaft lobe to run right against the valve stem Apr 18, 2019 · Thread Tools 04-18-2019,03:23 PM #1 Charlieb9578 Member Join Date Apr 2019 Location North Beach Maryland Posts 4 My Cars 2002 325i e46 m54 Engine misfire cylinder #6 Hydraulic Lifter, INA - E36, E39, E60, X3, X5, Z3, Z4, M54, S52, S62 OEM replacement lifter for engine rebuilds and/or performance cams Special Application Notes: sold per lifter Jan 28, 2023 · I daily drive an '05 X5 with M54I also like driving it despite US-build quality issues and its many quirks and component failures - particularly in cold weather. Jul 7, 2013 · Very likely the lifters as they've seen a few cold starts and the oil temperature has not reached full temperature. Then stalled and wouldn’t start for afew seconds. I've been trying to diagnose a misfire on cylinder 3 on cold start for months now to no avail. Can a bad lifter cause misfire? There is a possibility of misfiring if the engine has a bad lifter. If your BMW is ticking, solving the problem might be easier than you think. I have been hesitant to make a new thread asking for help because there are so many threads already on this issue just by googling "misfire on cold start only". 1, but perhaps that's not the case. Jan 15, 2019 · Stuff i used and used multiples of wasrisoline engine cleaner, sea foam, MMO, Motor Medic, Liqui Moly Hydraulic Lifter additive and ATF. Ideally we want the round part of the camshaft lobe to run right against the valve stem Apr 2, 2021 · I had a bad lifter on my M54. edit: when I started, the miss-fire was with a fuel cut-off. Rather than just throw parts at the problem, let's compile a DIAGNOSTIC procedure for debugging WHICH parts to replace to resolve the misfire. So the basic problem is that the engine ran a bit rough at idle and low RPM and I had codes for "misfires without cylinder cutout". Ticking or Tapping Sound from the Engine 2. My thought process is: when the lifter noise is bad, the valves are opening later and closing earlier that they should. My guess is that this is a DME problem (M54 Cold-start misfire describes my symptoms Nov 18, 2023 · M54 Several Cylinder Misfire- none of the usual suspects Jump to Latest 3. Nov 18, 2023 · I've been trying to diagnose a bad misfire on my X5 for the past couple weeks, and it's stumping me at this point. As is my I had a misfire in my 6th cylinder, replaced the fuel injector, ignition coils, and spark plugs, still getting the same misfire code p0206. Dec 6, 2015 · Burning2nd Under the lift arms Joined Aug 25, 2010 13,675 Posts #21 · Dec 6, 2015 Mar 24, 2025 · Since the N54 is based on the older BMW M54 engine, it has an aluminium engine block (instead of the magnesium alloy used by the N53), a displacement of 2,979 cc (181. Sep 21, 2018 · If you're fixated on replacing the lifter, check the compression with the engine cold. It will in most cases also result in a check engine warning light on your dashboard. At Bimmerforums, you will find technical how-to information maintenance specifics audio advice wheel and tire combinations and model specific details not found anywhere else. If you’ve ever seen a M52 or M54 lifter you will see why they were a common failure. See below - applies to M54 engines as well. WITH THE CAMS AND LIFTERS OUT. Apr 4, 2013 · Last time Coil pack went, engine management light came on power was reduced. Rough Idle or Engine Misfire 3. Dec 27, 2020 · M54 Misfires, Misfires, Misfires black oil loss of power m54 misfire rough idle Jump to Latest 2. PDA View Full Version : cold start misfire cylinder 5 bmw e39 m54 530i Bmw 0039 06-01-2015, 07:01 AM Is your head cylinder making a tapping or ticking noise? It could be a bad lifter. car runs good, only runs funny after it idles for a min or when i start it up. i had all the coils and spark plugs replaced recently since it was misfiring. 8 cu in) and does not have valvetronic (variable valve lift). Car now runs but CEL comes on with lean bank1 and 2 codes and several 'misfire with fuel shutoff' codes. In my case the short term fuel trims said I was running lean. Today, I tested the BMW M54 reliability and common issues. Mar 24, 2024 · Meaning if I start it, let the misfire do its thing for about 2-5 minutes, then delete the code using obd, and start again, the problem wont happen again. Valve Train Damage (in advanced cases) Diagnosing a Bad Lifter Step 1 May 13, 2024 · Read to find common BMW VANOS failure symptoms, and learn how to repair and replace it. Now the other odd thing Oct 17, 2019 · Clean car listed above with the M54 engine. I have a loud ticking coming from the engine (present from cold start and during hot engine) that increases frequency with engine Nov 30, 2011 · Actual M54 cam and lifter. 1K views 12 replies 5 participants last post by bmdubya1198 Nov 23, 2023 B Feb 23, 2010 · When starting my M54 engine cold --it would shake and go crazy--then would just about die--then throw a code of a misfire in certain cylinders--now say or think what ever you want--once the Vanos seals were installed I never had a bit of trouble when cranking the car since. I was literally down the block so I limped Dec 30, 2024 · I can run you through how you would test the lifters, which I think would be my 1st assumption, given your description. I scanned it, cylinder 4 miss. Spark plugs - I installed fresh Bosch plugs. These work on all M50, M52, S50, S52 and M54 engines and were proven in normally aspirated as well as supercharged engines. But, if I start the car, put my seatbelt on, and drive away, the problem won’t show up. in this video i will show you what to look for when looking for all your misfires and all your rough running symptoms on the M54 enginemost common codes for Jun 22, 2021 · Hey all! I just purchased a super clean and well maintained 1997 BMW 528i with~ 117k miles (M52 Engine). From Champaign 777 links: Exhibit A "530i Hydraulic Valve Lifter replacement I really need some good advice, I own a 53 plate 530i Sport with 142k on the clock. (One of the two cylinders with misfires in my own car has 25% leakdown . Switched cold around, nothing. The more interesting thing is, after it dies, when you try to start the engine - absolutely nothing Mar 17, 2020 · Hi guys I just got done replacing my throttle body on my m54 325i and w when I put everything back together and cranked the car it had a bad misfire. Bought a new coil, still. can i just change the perticular lifter? Feb 9, 2023 · Hydraulic Lifters Link to other parts of the project DIY: M54 engine disassembly Hydraulic lifters are a small but important part of the engine. BMW E46 Misfire Rough Idle Every Possibility For M54 M52tu Engines Jun 29, 2014 · Some BMW six-cylinder engines from the mid-2000s exhibit an intermittent and annoying lifter (tappet) tick. The car runs and drives fine until I put the engine under load. But, if I start the car, put my seatbelt on, and drive away, the problem won’t Mar 4, 2018 · I'm afraid to even bring this up as I'm expecting the standard responses to come flooding in. Is the M54 a reliable engine? How does the M54 compare to other BMW engines in terms of reliability? Solid lifter conversion kit for BMW M50, M52, M54, and S52 engines. The check engine light Apr 15, 2025 · What Are Lifters and Why Do They Matter? Why Do Lifters Go Bad? Common Signs of a Bad Lifter 1. He only found after years of searching more common issues. 3L engine will tell you that there is a misfire problem by throwing a check engine light. youtube@yaho M54 engine. Another possibility of no/low lift on cylinders 1, 4, 6, or 7 on an AFM engine would be a collapsed AFM lifter. Apr 4, 2020 · Advice sought for debugging a suddenly severe & disturbingly intermittent cold-engine misfire. now it seems that the lifter is bad. Now, that can't be a bad lifter, can it? Dec 4, 2020 · 5 Common problems with BMW's M54 engine and what you can do to fix or prevent them from happening to your BMW E46 straight six cylinder Apr 22, 2021 · Most Common BMW M54 Engine Misfire Causes And Fixes E39 E46 X5 X3 For Business Contact :Nathan's BMW WorkshopPo Box 115 Altenburg Mo 63732nathan. Mar 4, 2020 · Very likely the lifters as they've seen a few cold starts and the oil temperature has not reached full temperature. It was dirty injectors. Each one sits between its valve stem end and camshaft lobe. Let’s jump in and discuss BMW DTC P1345. Aug 2, 2023 · Hey everyone! In this video I'm going to be finally dealing with the e46 m54 misfire in cylinder 5 and cylinder 6. Check Engine Light 4. Listen Carefully 2. Here is the operating principle of lifer from INA Sink-down (lifting phase) Adjustment phase Here is the misfire mechanism due to lifter not bleeding fast enough on cold weather from INA. Drive the vehicle through the DFM modes. Schrick guaranteed only warranty, if when fitting a Schrick camshaft new hydraulic valve lifters installed with. Meaning if I start it, let the misfire do its thing for about 2-5 minutes, then delete the code using obd, and start again, the problem wont happen again. Any input appreciated! If you swapped the coil and plug from 3 to another cylinder and you still have a misfire on 3, then you have an issue with the firing circuit of the plug, or an injector that isn't working. N52B30 Cylinder 3 and 4 misfire - SOLVED All times are GMT -5. Swap coil from cylinder 3 to 4 and see if misfire follows coil. I guess i fixed something. To fully understand what a misfire is, it helps to have a basic understanding of how your car’s internal combustion engine works. >Changed the bank 2 pre-cat O2 sensor because I could see dynamically on the code reader it was lazy >Swapped in a spare CPS and vanos solenoid, no change. Jan 14, 2017 · Think of it like a misfire and or loss of compression. So I just ordered some new sparkplugs (NGK) but what else should I check? Sep 7, 2011 · Also found this: Toubleshooting BMW Hydraulic Bucket Tappet Problems Common complaints of BMW hydraulic bucket tappets (HVA) are tapping/rattling noise from the valve train area or a binding HVA element. Apr 19, 2020 · Bimmerforums is the preferred online BMW Forum and community for BMW owners. On a cold start the engine fires up fine and after about a minute of idle I am getting cylinder #5 mis-fire with fuel cut-off. 0L M54 engines also used in the E39 5 series and E85??Z4 series Mar 19, 2019 · Hello guys, Edit: To clarify no power would be explained as. Items I was going to do next BMW M54 misfires in all 6 cylinders diagnosis. It would fire then die immediately. If the rpms get about 4,500 the SES message will come up and the ECU will put it in limp mode. Music from #Uppbeat (free for Creators!):https://uppbeat. For example, each valve needs two lifters, which means a V8 will have 16-48 lifters. Switching ignition coils didn't help, same "misfire in 3rd cyl" on odb2 diag. Swapped coils between cylinders, still cylinder 4 miss. The car runs like the timing is off and it misfires. Troubleshooting and repairing a BMW can seem like a daunting task with things like an advanced electrical system, specialized tools, and intimidating engine covers. Increased Fuel Consumption 6. I would be more than grateful Let me give you some insight now. Fortunately, the fix for P1345 is typically simple and not something that’s going to break your bank. P0304: misfire on cylinder #4 This problem does not ocour if the car is not cold. and increased viscosity is my guess as to why it worked. It’s not my daily driver anymore so it’s been like this for awhile but I have subsequently replaced all spark plugs, ignition coils, and fuel injectors. Jun 21, 2014 · From what I have read, there is not always a noise. The problem of lifter failure is very massive for LS engines, but especially for some of the 5. If I shut the engine off and restart it, the issue temporarily goes away, but only for a few minutes before it returns. Any ideas? A “cold” misfire usually indicates either low compression or a blown head gasket. My first car. The following codes were detected: P0313 P1349-4 - fuel cut off P1351-5 Misfire P1345-2 Misfire P1343-1 Misfire P1353-6 Misfire P1083 - Bank 1 Sensor P1085 - Bank 2 Fuel Mixture too lean P0313 - Misfire detected with low fuel P0300 - random multiple misfire detected I'm at a loss trying to figure out what it could be. Misfire stayed constant cylinder 4. I drove the hell out of it. Edit: PS - I have reviewed a few posts from here, and I've noticed on this forum, you guys focus on DISA, ICV, and Smoke-tests to resolve Jul 12, 2016 · MS45. These include the local cost of labor, the cost of parts, and how many lifters are in your engine. It usually ticks on random cold starts for a minute or two before the noise goes away. Engine Lifter Replacement Cost* The cost of replacing engine lifters depends on three factors. I changed the oil, and used a higher quality, slightly thinner oil. Well, possible previous indications (in hindsight) of difficulties with Dealing with AFM lifter failure in your 4. 3. The problem just kept progressing Oct 3, 2011 · Time to ressurect this thread Hello! Were you able to solve this riddle? Got 320i e46 2002, almost same thing. To sum it up, I got gas, drove it 5-10 minutes down the road, then it developed a cylinder 2 misfire with fuel cutoff. Oct 4, 2020 · I have a 530i with a M54 engine. But what's its purpose in the intake system? May 18, 2023 · One of the lifters will fail and your 5. 0i manual got the MS45. When it breaks, I simply research how to diagnose & fix it. 1K views 23 replies 6 participants last post by Burning2nd May 13, 2020 Burning2nd Discussion starter Had a bad misfire now lifter tic is louder than normal This been an intermittent issue for the past year I would say. The lifter bucket remains in place with the Schrick solid tappet replacing the original. Changed a lot, got misfire in 3rd cylinder, only third. My theory is the stuck lifter caused a misfire at the drift event (Which I remember), eventually was Apr 15, 2025 · What Are Engine Lifters? What Causes a Lifter to Go Bad? Common Symptoms of a Bad Lifter 1. Not understanding why your car misfires could make you more anxious. Designed for high-RPM, high-power builds. 2 days later, misfires occured only when standing still. Fuel pressure is 50psi New plugs If the valve(s) are not moving, replace the valve lifter oil manifold and affected bank of AFM lifters. Sounds like one or two of the cylinders are not working This kit includes the mechanical spacers to convert hydraulic lifter tappets to solid lifters. There are many different causes of misfires on BMW engines. People are doing all the usual fixes. I have been reading every single thread on this issue and the suggestions are all very similar. Switch them to Cyl 1-3, if the issues pops up there, the coils are the problem. Worked without any hiccups for 8 years since I got it, never one single engine ECU fault/problem. The car consumed oil much more quickly than we anticipated and it reached just slightly below the minimum fill line when the lifters began fluttering so we promptly refilled it and car was back to normal (little to no lifter flutter at the time, April). Check for any misfire DTCs and record: May 9, 2024 · BMW diagnostic code P1345 indicates a misfire on cylinder 2 with fuel cut-off. My car has the typical 'Cold Start Misfire' attributed to these engines and the culprit is the HVA (s) on Cylinder 1. Waking the car up after a long slumber, PO stated car wouldn't run. Vacuum leaks from intake tube - No rips or tears that I could see. Apr 2, 2012 · Hydraulic Lifters Link to other parts of the project DIY: M54 engine disassembly Hydraulic lifters are a small but important part of the engine. Still Cyl 4 misfire. Apr 10, 2017 · Hi BMW doctors, I think this is my first post here. I'm seeking help with a strange problem my E39 520i is having. Nov 19, 2024 · If so, somebody on the E46fanatics finally discovered a collapsed exhaust valve lifter causing a misfire on start-up on one cylinder. in a 3 L. But, diagnosing and repairing the typical misfire is fairly straight forward, and we Oct 27, 2023 · I want to describe a problem that I found on my car which took a long time to diagnose in the hopes that this helps someone in the future. Happened about 3 times so far but this one being the worst. mfswy oicwlfilz nzdxoedn wzhmc uew tsys iiel hwx nksy wkpm