Well.... I replaced my water pump, truck's running well. Took it to town to have a full exhaust system on her. In the parking lot at the shop I was turning the truck around, hit the brake, peddle to the floor. Pumped it twice and the brakes came back. The shop fixed my exhaust and when I drove home the brakes did the same thing every time I came to a stop. Gotta tell ya it was a nervous ride home. I can't find any leaks, the master and wheel cylanders were rebuilt a couple of months ago and I have new hoses. Any ideas.
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'50 1/2 ton GMC
