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The brake/idle speed problem sounds like vacuum leak >
Posted by ChipJ [Email] (more from ChipJ) on Sat, 2 Apr 2005 16:09:53
In Reply to: Stepping on brake pedal causes idle speed drop, berkeleybull, Sat, 2 Apr 2005 15:00:49
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The lights dim because the alternator is putting out less power at the lower idle speed. And the other problems might well be the alternator or voltage regulator is on its last legs. I would check the voltage output from the alternator, but if the problem is intermittent you might just try replacing the voltage regulator and brushes (sold as one Bosch unit) and see if all the problems go away. It is a pretty cheap part, but only get the Bosch one, not cheap imitations.
Another suggestion - when you post, tell the year and model.
posted by 66.30.19...
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