1995 1500 , both sides on front locking up.

60

Asked by Nov 11, 2014 at 06:05 AM about the 1995 Chevrolet C/K 1500 Silverado Standard Cab Stepside SB

Question type: Maintenance & Repair

Replaced passenger side caliper and hose after lock up and only smelling it on that side.
After it happened again I lifted whole truck and it's both driver and passenger sides. Rear
are good. What's causing both sides to lock up at same time?

8 Answers

98,565

I would replace the hose on the other side first, then completely flush the brake fluid from all 4 wheels, you could have a high moisture content in the brake fluid and that will apply brakes when the fluid gets hot. Ddon't forget to bleed out the Rabs valve on the antilock also. If that does not fix your problem then replace the master cylinder as the internal check valve is not letting the fluid back into the tank.

60

No abs. And yes when it gets hot

1 of 1 people found this helpful.
60

Could the proportioning valve?

3 of 3 people found this helpful.
98,565

Ok then I would replace the other hose and flush the entire system, if you are only using dot 3 fluid flush it out with dot 4 and use that.

1 of 1 people found this helpful.
60

Oh ya, one more thing. The brake pedal ends up being hard as a rock when brakes start locking up

60

Came in for coffee brake and I thought I would add this. As looking at master cylinder I am seeing that it has everything there for ABS. Nothing at front wheels shows it has it like on wife's car.

98,565

Hard pedal is common for high moisture content in the brake fluid. How many times has this happened after the new caliper and brake hose? Don' t let it happen too much as the high pressures can damage other braking parts. If your not seeing the front brake lines going to the antilock control unit then your only has rear antilock. But it will still need to be bleed all the way around.

1 of 1 people found this helpful.
60

Thank you for all your help. The rubber diaphragm in master cylinder cap was colapsing and not letting fluid return to holding tankReplaced 5$ part and all is good.

2 of 2 people found this helpful.

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