Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello I will help,
When the brakes lock up loosen the master culinder bolts and see if they release, if they do adjust the booster rod length shorter or shim the master away from the booster.
Please let me know what further questions you have, if nothing further please complete the rating
So when you removed the master from the booster the brakes (all of them) are still locked? Is the piston all the way back in the master when you do this? It should be back against the snap ring where to push rod touches the master.