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Intermittent rough running... my car wants a snooze button. 200 1990

posted by  tjtsj on  Tue Feb 1 19:49 CST 2011
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last visit: Mon Sep 1 18:06 CST 2014
[RELATED]

Ok, so I just changed the voltage regulator & brushes 2 weeks ago, (back to my 13.8V again!) and the next morning after the fix this happened. Now in the morning after sitting overnight it will run sporadically rough until 5+ minutes of driving, or if it's above 2500 RPM it's fine. It's fine after sitting all day at work, but overnight seems to be the problem.

I think the alternator is a red herring (correlation does not equal causation)
Oh an I'm in Orlando, FL. Temps 40-60 at Night 60-70 Daytime

Any ideas?


p.s.
I think the car parts talk to each other, cause every time I put something new in, a completely unrelated system has a problem. I think the old parts get jealous... anybody else have the same feeling?

1990 240 Wagon 235K a.k.a. "The Brick Oven"






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