1971 Chevrolet Truck Replaced Brake Lines Mc Powerboster Adjusted Brakes

1971 CHEVROLET TRUCK
123,755 MILES
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HOTZCARS
  • MEMBER
  • 1 POST
We have replaced all brake lines, mc, powerboster, we adjusted the brakes. when we start the truck the brake pedal goes to the floor , when we unhook the vacumn hose we have manual brakes. How do we fix this problem?
Jan 3, 2013 at 4:31 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
you still have air in the system. re bleed the system

Roy
Jan 3, 2013 at 4:34 PM
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