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NE KS | Ive got a 91' peterbilt that is giving me brake problems. When bobtailing the truck brakes are all or nothing. When you push the pedal they work just a little and as you keep pushing they will all of a sudden lock up, hence all or nothing. Makes it a real challenge driving the truck with out a trailer. With a load everything is fine because enough weight is on the truck the tires won't lock up.
I've replaced the valve under the cab for the brake pedal (that seem to help the problem a little) , 2 of the brake chambers are brand new, and the other two aren't that old. Any one have any advice? I hate using up my trailer brakes to stop. All of the brakes are working, but to get them to lock up you've got to put the pedal almost on the floor. | |
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Peterbilt brake issue
