1979 Chevy Monte Carlo loose pressure on brakes when i star

1979 CHEVROLET MONTE CARLO
16,500 MILES • V8 • 2WD • AUTOMATIC
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KAKANE
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I have just replaced a brake cylinder on the rear passenger side. i have bled the brakes and have good pressure when the car is off, but as soon as i start it i loose everything i don't know what is wrong. -kim
Feb 12, 2010 at 10:20 AM
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