|
|
11-19-2023, 01:43 AM | #1 |
Captain
110
Rep 897
Posts |
Hello guys
I’m facing a problem after reinstalling the plenum back Now while cruising on highway the throttle seems like shutting or misfire which hold the car from moving and this happen only on partial throttle between 2000-3000 RPM. Mid to heavy throttle have no issue. We took off the plenum and installed it again to make sure everything in place but the issue still there. While reving the car on idle till 3000 rpm and of course partial throttle only There is a sound coming from plenum side. https://www.m3post.com/forums/showthread.php?t=1907329 Exactly the same issue described here but unfortunatley he didn’t mention if he fixed it or not. Could it be failed pcv? Here is a video the sound coming https://youtube.com/shorts/kPjn2IbEb...eVxGUn7gsdBygd No codes found. Hopefully someone can help Thanks Edit: Problem fixed after taking out the RTV Silicone that i applied to fix plenum whistle. |
11-19-2023, 06:42 AM | #2 |
Major
1020
Rep 1,486
Posts
Drives: 2012 e92 M3 DCT ZCP
Join Date: Oct 2010
Location: Michigan
|
I would double check that the rear of the plenum is seated completely, if not it might rub and vibrate against the strut brace. I’ve had that issue in the past. Secondly, make sure the rear hose is clicked in, it can be a pain in the ass. Beyond that I’m no help. Good luck! (I assume you didn’t do anything else beside remove the plenum based on your post, correct?)
|
Appreciate
1
Moutamid110.00 |
11-19-2023, 07:08 AM | #3 | |
Captain
110
Rep 897
Posts |
Quote:
All connections secured but still the sound is coming and the hesitation on partial throttle still there. And yes no other work done beside plenum removal. Really appreciate your input |
|
Appreciate
0
|
11-19-2023, 07:46 AM | #5 |
Captain
110
Rep 897
Posts |
|
Appreciate
0
|
11-19-2023, 07:52 AM | #6 |
Private
44
Rep 50
Posts |
Can you post photos of all the connection points under the plenum? No need to remove the plenum, just turn the light on for your phone and snap photos of the space between the plenum and the the engine all the way around the plenum, just in case something is out of place or broken and you just missed it accidentally.
|
Appreciate
0
|
11-19-2023, 08:27 AM | #7 | |
Captain
110
Rep 897
Posts |
Quote:
|
|
Appreciate
0
|
11-19-2023, 05:30 PM | #8 |
Brigadier General
3900
Rep 4,165
Posts |
Replied to your PM. Remove the plenum and drive without it. Car will drive just fine in alpha-n mode. If the issue is gone then it's something with the plenum. It sounds like a vacuum leak to me.
|
Appreciate
2
Moutamid110.00 Robocop30512.00 |
11-19-2023, 08:27 PM | #9 | |
Captain
110
Rep 897
Posts |
Quote:
But the hesitation still there specially on 3000 rpm. Will a smoke test verify if there is a leak in the plenum itself ? Thanks |
|
Appreciate
0
|
01-28-2024, 09:10 AM | #11 |
Captain
110
Rep 897
Posts |
|
Appreciate
1
Robocop30512.00 |
Post Reply |
Bookmarks |
|
|