Truck losing brake pressure at red lights

2004 CHEVROLET COLORADO
130,000 MILES
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JOHNE1
  • MEMBER
  • 1 POST
My 2004 Colorado, can stop on a dime with no problem. but if i am at a red light or in traffic, I will lose brake pressure. So i either have to push the pedal in further in intervals, or let off and re-apply. There is no visible leaks of fluid, the brakes have been bled, and the master cylinder has been checked. I keep rolling into traffic, and the only thing i hear from 2 shops is my foot most be falling off the pedal. Please help me.
Aug 13, 2012 at 7:18 PM
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HMAC300
  • ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
sounds like air in system or a bad master,Or a leaking line. It could be an abs problem as well. power bleeding is the best for brake bleeding.
Aug 13, 2012 at 7:40 PM
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