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vacuum leak
1-20 of 40 Results
  1. E46 General
    Hi everyone, I just replaced my motor mounts and used an engine support bar to lift it up a couple inches. I drove a bit after the install and got an SES, just a p0174 code. Any first thoughts as to what I may have pulled/stretched/cracked/etc. by lifting up the engine? Intake boot on top looks...
  2. E46 General
    First time post, lurking for the last few months on this forum to repair my 02 325xi with 249k miles. I bought the car as a project, love fixing and tinkering with it in my spare time. I only have code P1085: fuel control mixture limit too lean bank 2 sensor 1. I’ve read JFOJ’s huge post, and...
  3. E46 General
    I jsut replaced the hard pipes on my 330i and went on to change the spark plugs as well. Once that was done, I started the car again and it was idling very rough with the tachometer dipping down to 300 and then back up to about 900. It began to die and it sounded like it misfired. Accompanying...
  4. E46 General
    TLDR: Lean codes, improved after replacing a few things, only expensive things left to replace that I'm aware of. What could i be missing? Hi all, I'll try keep it brief. I have a 330i 2002 M54, I'm from the UK so don't have a secondary air pump with the car. I've been getting engine lights on...
  5. E46 General
    I just recently replaced my entire CCV system and watching the videos they said there’s supposed to be a vacuum like with this plastic thing in the middle of it it’s white on the left and black on right Anyone know where I could I find one my car doesn’t have it maybe the previous owner took it...
  6. E46 General
    Hello all. So my 2000 328i with 200K+ miles on it was sitting for about 2 weeks because I was waiting on some new parts. Went to start it, fired right up. Cylinder 3 started to misfire so I shut it off threw in the old (but not bad) coil pack I still had from when I replaced them. Car fired up...
  7. E46 General
    Hey guys, Case is i have had a engine light for a few months now on my 2000 E46 323i, The code is: P0173 "Fuel Trim, Bank 2 - Malfunction" I've been trying to figure it out, and think that I've narrowed it down to a vacuum leak. (Did a smoke test, and smoke came out, however I've yet to...
  8. E46 General
    I want to share my unexpected experience. (I'm an experienced mechanic and electrical engineer), but this is my first BMW. We purchased a sweet 2004 3.25i, expecting to do a lot of work including replacing all the rubber, cvg, DISA etc. After we did that the car had what appeared to be a vacuum...
  9. E46 General
    I’ve got a 2005 325i with 112k miles that I bought earlier this summer. SES light came on recently and I plugged in my obd2 reader and found it threw the infamous P0171 and P0174 fault codes (system too lean banks 1 and 2). I have an obd2 scanner that gives freeze frame and live data, and...
  10. E46 General
    Hi all, Although this is my first post, I have been using this site as a reference for a while now! I have a 2002 318ci (n42 engine) automatic. I’ve got an issue that’s now really bugging me! The problem started about 2 weeks ago when my alternator packed up whilst driving home along the...
  11. E46 General
    I have been having a problem for the past 6 months, where I have been getting misfire on all 3 cylinders on a single bank at idle. When I am driving, I can't tell if the misfires are present and car seems to feels fine otherwise. I have taken in the car to a few different Mechanics and one of...
  12. E46 General
    Hi guys, first post here. I just rebuilt disa using a repair kit. It did not come with the o-ring, do I put it on without it. I noticed the car makes a hissing sound coming from the area. Seems to run fine, no dash lights. Is there any way of knowing it it's a vacuum leak?
  13. E46 General
    I have an intermittent check engine light with P0174 (Bank 2 system too lean) and P0172 (Bank 1 system too rich). I just replaced the cylinder head, and a lot of the vacuum lines were old so I replaced everything that I saw. The CCV is new. All gaskets were replaced. There is one line, however...
  14. E46 General
    So I have the P0171 and P0174 codes signifying a vacuum leak and there's a hissing noise I can hear coming from the front left tire when the car is running. I was wondering if these two things are related
  15. E46 General
    This month would have been my six month of me chasing down a vacuum leak but that is no more!!!!:excited: About six months ago my car decided it was time to start giving me trouble again. It started with the fuel pump, then the DISA, then a vacuum leak. This was all in about a 2 week period...
  16. E46 General
    Hi everyone, my 325ci is making a terribly loud hissing noise from behind the dipstick. Previously, the dealer had told me that the DISA needed to be replaced for $650. Yesterday I used the German Auto Solutions DISA repair kit and the car is still hissing. I installed everything properly and...
  17. E46 General
    1999 323i e46 sedan production 8/98 DME MS42 auto to man 5spd swapped Hey fanatics I just replaced my crankcase vent valve which solved my P1188 and P1189 codes :woot: (caused by a split oil return/drain-back hose). Now I'm getting new codes :bawling:. Before I get into that I have questions...
  18. E46 General
    I've replaced the pump, valve, and relay and still this wonderful light keeps coming back. Next on the list is to check the vacuum system. Is there anything else i should be checking/aware of before i dive into that?? Any help would be greatly appreciated.
  19. E46 General
    I need help! I've got a 2000 323i e46 automatic and it has been a pain. My symptoms are: 1- if it hasn't been started in several hours, it idles rough, pops or tings, and dies. It does this until you hear the fan prime stop. 2- if I stop at a stoplight for a few minutes, it has very little...
  20. E46 General
    Hi guys, First, a little back story. I'm from California but I spent this summer in Michigan working on some stuff for Ford (they're funding my PhD). Anyhow, a couple of weeks ago my 2000 323Ci SES light lit up and it's throwing the P1188 and P1189 codes. I replaced both pre-cat O2 sensor since...
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