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K. Wiggins
K. Wiggins, Classic Car Mechanic
Category: Classic Car
Satisfied Customers: 2753
Experience:  AA in Auto Tech, Classic car restorer and enthusiast
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I have a 7" dual gm booster that after it sits while the

Customer Question

i have a 7" dual gm booster that after it sits for a while the booster jambs and i have to push the pedal very hard to brake it free then its ok till it sits a wehile
Submitted: 10 months ago.
Category: Classic Car
Expert:  K. Wiggins replied 10 months ago.

Hello, did you replace the master cylinder as well and have you checked the check valve on the vacuum hose to the booster for proper operation?

Expert:  K. Wiggins replied 10 months ago.

Hello, I was just wanting to follow up and see how things went.