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Old 11-13-2002, 06:47 PM
d2bernhard d2bernhard is offline
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Join Date: Feb 2002
Location: Seattle
Posts: 596
Opinions please, Rain fixes Idle and hesitation!

Hi All, here's the story:

Rough Idle and hesitation, as well as hot start long cranking were my problems. Diaged with a bad fuel distributor by the dealer in Seattle. My E was not running $1k bad, so I declined the repair and kept driving it. I bought the parts to do it DYI and ended up returning them, because, when it finally started raining two weeks ago, the car began running and idling fine and I mean running very nicely! Perplexing. Did the dealer do a false diag or could moisture temp fix the fuel distributor? Do I have a vacuum system issue temporarily solved by moisture? Do I have some other seal somewhere temporarily sealed by moisture? We'll see what happens when the weather dries out again. I can't really do simple spray bottle tests because it is running well now! (Hot start is still there, so I now think that is the fuel pump check valve and/or accumulator.)

What do you all think?
1986 300E Anthracite + ECodes + MB Mileage Award
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