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Old 11-07-2009, 01:03 PM
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Strange brake problem

I have a 1992 Chevy silverado step side. Ever since I bought it in 2007 it`s had the best brakes of any vehicle I`ve ever drove. Last year, it sat for about 8 months. Afterwards I started driving it again and what happens is when you press the brake pedal the truck shoots to the left as if there are no right brakes. But if you do a panic braking all 4 lock up like they should.
Now the problems gotten ever stranger, now the brakes are dragging and I`m guessing it`s the front brakes, you can smell them burning as your going down the road and if you stop on a hill and hold the clutch in the truck won`t roll backward, for some reason it`s holding pressure and it don`t take it any amount of time to do so, I can drive it 5 minutes and it does it. Today I went to bleed the drivers side, bled fine. Then I went to the passengers side, it wouldn`t bleed at all, rock hard pedal. Then I got in and fired it up, the pedal went almost to the floor as if air was in the line but it never bled so there couldn`t be. I drove it down the road and the same thing happened, it shoots to the left when you hit the brakes. Now, since the truck sat, I know that didn`t effect the adjustment rod from the brake pedal to the master cylinder, so it makes me believe the proportioning valve must be bad. I gotta get this thing where it acts right before it gets me killed with it`s crazy acting ways. Any help here is greatly appreciated.

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Old 11-07-2009, 01:22 PM
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not strange at all

bad hose or caliper, one or the other,

this happens when you let them sit not driven

the side it shoots off to is the good side

the bad side is hung up and dragging because the piston in the caliper is frozen due to sitting parked

or the hose has swelled internally

need to drive it more often to prevent this and other problems from developing

seen it happen a million times over the years

also just happened to my 82 trans am recently, in which i dont drive, pass side was not working at all anymore also the rears quit working as well

all from sitting parked

replaced the caliper and have bth front brakes again now, but gotta replace the rear hose soon also now
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Old 11-07-2009, 03:01 PM
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I would pull the calipers to make sure they are free. if the pistons move ok. I would change the brake hoses.
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Old 11-07-2009, 04:06 PM
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Go to the caliper that you did not get fluid from and loosen the flex hose where it connects to the steel brake line if you get fluid pressure there replace the flex hose as T-Bucket said it isnt strange at all.

Also never forget that the caliper slide pins need to be lubricated from time to time.
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