What is cause of hissing sound in the cab and revving of the engine when I step on the brake pedal of my 1992 Chevy C/K 2500 V8 5.0 liter truck?
Possible vacuum leak at the brake booster.
What is best course of action for repair?
Search Chevrolet C/K 2500 Questions
Chevrolet C/K 2500 Experts
Related Models For Sale
Used Cars for Sale