Question about 1988 Jeep Comanche
Rear brakes get lock when I press brake pedal.i'm pretty sute tha it is the proportioning valve.I want to know if ther is a way to solve it the problem
There only 2 ways (USA answers)
they have a guage test (expensive gauge)
or replace it ,if in fact you know for sure the rear brakes are good.
i think raybestos sells this.valve rebuilt.
the valve is height measuring disconnect the link and see if its
free? is it jammed? i had a 88 from new.
i purged brake fluid every year and it lasted for 250k miles. and sold it.
so there is a bench mark on life.(best case)
did you read the fsm? yet
id does cover these tests.
try alldata.com (usa ) it may cover Commanche.
Posted on Feb 17, 2014
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Posted on Jan 02, 2017
Why replace the whole fuse box? That's rediculous. If you can't find the fuse box, just fix the affected circuit. Did they check the brake switch?
Posted on Nov 25, 2008
SOURCE: 99 Jeep GC brake lock.
You say they replaced basicly everything that involes the rear brakes.
Every step they took to find the problem could lead to the solution,BUT did they check the inboard brakes. The brake system on a jeep that has rear rotors have inboard shoes for the parking brake.
You could have a parking brake cable that is frozen (this will cause a drag on the inboard brakes. Do you use the parking brake? Maybe the parking brake shoes are adjusted too tight?
Posted on Feb 10, 2009
Don't know if this will help but its how i fixed my 2001. Go to: http://www.2carpros.com/forum/2001-jeep-grand-cherokee-laredo-brake-lights-not-working-vt4814.html Tip: If you have a small piece of medal to put under the ground contact point then it will keep it raised in place, i used a really big staple from a staple gun to slide under mine I also replaced all the sockets that the bulbs go into cause mine were falling apart and may have been a part of the problem.
Posted on Apr 20, 2010
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