Crazy brake problem after5.3 swap.

[exboatracer]

I don't know if it's fixed or not,only a good test drive wil tell. My 5.3 came with a pcv valve that had no check valve and I replaced it with one with a check valve. I'm thinking thats what caused the brake booster to lock the brakes,not sure though,anyway I put the non check valve back in and we'll see.

[blacstar]

there is a valve for the brake booster. the pcv( positive crankcase ventaliation) is for the engine. i hope this clears anything up!

[exboatracer]

Thanks I'll search for it online. Preciate it.