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Shutter at Idle when in gear and warmed up 700 1992

posted by  machine man on  Fri Nov 13 01:18 CST 2015
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last visit: Wed Oct 22 15:40 CST 2014
[RELATED]

I just had another thought of something you can look into.

It's related to a vacuum leak when you have the car in gear and your foot in the brake.

The booster can or diaphragm could be leaking depending on how much and when its stepped on.

The leak maybe still small enough to not to feel that it's applying enough force to operate the brakes.

The next time it does its trick try pinching off the hose too the brake booster to see if it affects the idling.

Might be worth a shot or at least squeeze one off in that direction.

Phil






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