Moderator
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Join Date: Apr 2008
Location: Fountain, CO
Age: 40
Posts: 3,932
Real Name: Jonathan
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Moderator
Join Date: Apr 2008
Location: Fountain, CO
Age: 40
Posts: 3,932
Real Name: Jonathan
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Here's a simple test for the brake booster.
With the motor off, pump the brake pedal until it is firm. Once it's firm, hold the pressure on the brake pedal. While holding pressure on the pedal, start the engine. If the pedal does not sink down then the problem is your brake booster. If the pedal does sink down then I would look into your master cylinder.
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