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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 07-03-2015, 07:57 AM   #1
Howie330ci
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Join Date: Jul 2015
Location: Aus
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Ticking/tapping/doof noise in engine then stutters and stalls

Not claiming to have any idea as I'm an electrician not a mechanic. I've done a few little diy but that's about it. Does anyone have any idea what the hell is causing this to happen. Car was running smoothly but for about a month the car would sometimes randomly start feeling like it was farting or some **** when I pressed the accelerator or it would be sluggish as hell and no matter how hard I pressed the gas it wouldn't clime the rpm and go faster. Then it would go away by itself sometimes after 5 minutes sometimes after 10 seconds. But this time it didn't go away. I know my cars probably stuffed I just need to know what to do now, I was driving home and it got me all the way home, then when I was home I had to go get some fuel but it got there okay but when j went to return home it started stalling so I got home asap and haven't driven it since. Just changed the fuel pump as my friend who works as a apprentice mechanic at bmw thinks it was a fuel problem. Didn't change anything still doing exactly the same thing here's a video so you understand what I'm sayin. Thanks everyone and again I'm very new to cars

Last edited by Howie330ci; 07-03-2015 at 08:26 AM. Reason: Forgot link
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Old 07-03-2015, 11:55 AM   #2
tcphoto
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Vacuum leaks, knocking and nothing that shouldn't be fixed after using the "search this forum" feature of the DIY section.
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Old 07-03-2015, 09:16 PM   #3
Howie330ci
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Man believe me I have searched and searched but it seems it's something different for everyone else. There's even a funny smell coming from the engine bay but il check out for any leaks
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Old 07-04-2015, 04:21 PM   #4
Kye7
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How many miles?

Do you know of anything that has, or hasn't been replaced?

Example: I've had my E46 for 10 months and I know what I've done to it and haven't done to it. So I know things that are likely to go wrong, or things I have skipped.


But in all likelihood, it sounds like you have a big vacuum leak somewhere.

Last edited by Kye7; 07-04-2015 at 04:24 PM.
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Old 07-04-2015, 06:23 PM   #5
Howie330ci
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Quote:
Originally Posted by Kye7 View Post
How many miles?

Do you know of anything that has, or hasn't been replaced?

Example: I've had my E46 for 10 months and I know what I've done to it and haven't done to it. So I know things that are likely to go wrong, or things I have skipped.


But in all likelihood, it sounds like you have a big vacuum leak somewhere.
Thanks for the reply, it has 149 129.086 miles, I have had the car around 8 months. Recently it has had all Sparks and ignition coils changed as they were gone. Brand new fuel pump and just other basic service things like air filter and oil filter. I have purchased a code reader and should be here next week some time will that tell me where the issue is? Again I really appreciate all the help thank you
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Old 07-05-2015, 03:41 AM   #6
Howie330ci
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Hey all after a long day I found the issue I opened up and saw that the ignition coil the 5th one has exploded. I have a picture. I'm guessing the cause was a loose spark plug lucky there's no threading or metal shavings in the engine head. I will post a picture car is running and no noise I have ordered a full set of spark plugs thank you all very much
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Old 07-18-2015, 03:11 PM   #7
325CiBrett
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Thanks for what? Literally nobody said anything that helped you. You helped yourself though.
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