Question about GMC Yukon Denali
Posted by Anonymous on
Simple test for brake power booster... pump brake pedal two or three times,while holding brake pedal down start the vehicle up.The brake pedal should drop if the booster is working properly :)
Posted on Apr 15, 2014
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Posted on Jan 02, 2017
Yes , for sure. A haynes manual is a must have for anyone who wants to do work on their own car. It will save you hours of frustration and unnecessary work. WELL worth the cost.
When you say the booster is going out , are you sure ?
They work of a vacumme hose from the engine , if that hose is leaking , or the little valve where it goes into the booster is no good , than you might think the booster is bad when it is good.
In general terms either the booster is good , or it is bad and you have to stand on the pedal to get any brakes.
If you post more info about what your brakes are doing , or not doing , someone might give you a different solution / diagnosis.
Posted on Jun 02, 2010
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