BUILD THREAD 87 Cutlass EFI build: 9/13/23..NEW STUFF!
- Thread starter Injectedcutty
- Start date
Oh yeah James I know. No sweat off my back, I grew up with a bunch of jackasses so not much bothers me tbh.
So I've been kinda quiet about it as I've been troubleshooting for the past several months, but having weird brake system issues. When I press the pedal everything works as intended, but the pedal doesn't really return to the "home" position. I've gotten used to putting my toes behind pedal and pulling it back. Not sure if this is an issue with my electric vacuum pump which is designed for power brakes, or my aftermarket booster and/or master cylinder setup.
I figured the easiest to start with was swapping manifold vacuum source back to the intake as designed from factory. I grabbed a couple fittings at speed shop today, then luckily had enough hose laying around to make up a piece. It blends in pretty good with fancy loom on it, hopefully it helps as I really don't wanna pull the booster! I'll try to test tomorrow and report back, and if anyone has any suggestions let me know!
I figured the easiest to start with was swapping manifold vacuum source back to the intake as designed from factory. I grabbed a couple fittings at speed shop today, then luckily had enough hose laying around to make up a piece. It blends in pretty good with fancy loom on it, hopefully it helps as I really don't wanna pull the booster! I'll try to test tomorrow and report back, and if anyone has any suggestions let me know!
The engine doesn't make enough vacuum and you had to use an electric vacuum pump, or you just wanted to?
Old small block didn't make enough so pump was necessary. LS makes plenty of vacuum, even with big cam.
Do you feel like you have power assist? You can test the booster to see if it holds vacuum. If it's leaking vacuum, normally you'd have a hard pedal.
Don't the rear brakes set the pedal height? At least with drums they do..... Don't know about discs, but it seems the rear maybe hanging up?
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