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Old 11-25-2006, 03:19 AM
artMBZ artMBZ is offline
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Join Date: Oct 2005
Posts: 11
Quote:
Originally Posted by joseph c View Post
Hi all,
My 1985 190e california version has had a cold start misfire for a short time now. on first start of the day it will run on 2 or 3 cylindars for about 10 to 15 seconds. and will repeat this if it sits for an hour or more. so I am assuming that the fuel pump check valve is bad and dumping all the fuel pressure while sitting.
I have a similar problem but the missing occurs ONLY during the first start of the day and only for 3 or 4 seconds. Are these the early warning signals of check valve failure? I was planning on replacing the plugs/cap/rotor at the next oil change but I hadn't thought of fuel delivery as my problem...

1993 190E 2.3 94kmi

Last edited by artMBZ; 11-25-2006 at 03:25 AM.
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