View Single Post
Old 06-12-2002, 10:44 PM
amg280's Avatar
amg280 amg280 is offline
Registered User
Join Date: Apr 2002
Location: NY
Posts: 530
If the idle is fluctuating up and down, perhaps your fuel mixture should be adjusted. As far as the rough idle, that might take care of it. If not, when the engine is running and the aircleaner off, get a 12mm wrench and one by one, loosen each fuel line in the fuel distributer, see if the idle gets worse or doesnt change, then retighten. If you come across one where it doesnt affect the idle, then its that cylinder that is causing the problems. This is how my mechanic diagnosed my rough idle (worse when cold) on my 420. Turns out I have a bad exhaust valve in the no. 8 cylinder and is not sealing properly. For the money to fix it, I will live with the rough idle
93 300D 2.5 Turbo, Black/Palomino 273K
09 E350 Black/Black 41K
Reply With Quote