Thread: Brake troubles

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OK the results are from pressure testing

Without engine running at the MC 100-150 psi
With engine running At the MC 600 psi
lines to front 600 psi each side
line to rear 600 psi
With a 3 foot cheater bar on the brake pedal I reached 900 psi at rear with lots of pushing on the bar which was way over and beyond anything anyone could do with foot power on the pedal.
I did a search and found that 900 + psi seems to be the norm.

IS IT POSSIBLE THAT THE DARN POWER BOOSTER IS BAD ? Its new but ?

Navy, I really feel your pain, not trying to beat a dead horse;

Originally Posted by Navy7797

OK the results are from pressure testing

Without engine running at the MC 100-150 psi
With engine running At the MC 600 psi

From the research I've done, the MC (engine off) should be closer to 400 psi, engine on closer to 1000/1200 psi.
I know you've been all over this, but I can't help but think there's a MC mismatch problem?