Brake Booster
Brake Booster
Senior User
Joined: Sep 2007
Posts: 328
Likes: 0
with the truck OFF. pump the pedal a few times, to drain the vacuum.
wait 30 sec.
with ur foot ON the pedal, start the truck.
does the pedal drop...ever so slightly? 1/4"- 1/2"?
if so, then likely the booster is working.
what problems are you having?
wait 30 sec.
with ur foot ON the pedal, start the truck.
does the pedal drop...ever so slightly? 1/4"- 1/2"?
if so, then likely the booster is working.
what problems are you having?
Lead Driver
Joined: Dec 2002
Posts: 5,491
Likes: 16
From: Kuna ID
Then what do you need brakes for?
I'll assume your planning on taking parts from this truck for another one. The only ways I know to check them are with a running engine as well. If the pedal remains hard with the engine running or if you hear a vacumn leak, then it's bad. I suppose there may be some way you could hook it to another vacumn source to check it.
I'll assume your planning on taking parts from this truck for another one. The only ways I know to check them are with a running engine as well. If the pedal remains hard with the engine running or if you hear a vacumn leak, then it's bad. I suppose there may be some way you could hook it to another vacumn source to check it.
