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