Weird solution for brake failure.......
Thread Starter
Burning Brakes
Joined: Apr 2005
Posts: 1,109
Likes: 2
Weird solution for brake failure.......
A member from a Corvette club had inttermitent problems with braking performance.
He would push the brake pedal and would go all the way down. Something like a Master cylinder failure.
For some unknown reason they scanned the 91 Vette ( automatic) and found problems with TPS. Vette had high idle RPM's.
Weird thing is that mechanics said that the braking problem had to do with a defective TPS.
So they changed the part and no more problems!!
I can not understand what TPS ( Throttle positioning sensor ) has to do with the brake system. Is there any relation or is it coincidence??
Did you hear something like this before? I had braking problems and replaced master cylinder, SS Brake lines, Super ATE Blue racing brake fluid, speedbleeders, bleeding a lot, changing pads, etc .
That was the way I solved the problem, but this seems interesting.
He would push the brake pedal and would go all the way down. Something like a Master cylinder failure.
For some unknown reason they scanned the 91 Vette ( automatic) and found problems with TPS. Vette had high idle RPM's.
Weird thing is that mechanics said that the braking problem had to do with a defective TPS.
So they changed the part and no more problems!!
I can not understand what TPS ( Throttle positioning sensor ) has to do with the brake system. Is there any relation or is it coincidence??
Did you hear something like this before? I had braking problems and replaced master cylinder, SS Brake lines, Super ATE Blue racing brake fluid, speedbleeders, bleeding a lot, changing pads, etc .
That was the way I solved the problem, but this seems interesting.
Burning Brakes
Joined: Aug 2001
Posts: 797
Likes: 2
From: Westminster MD
Perhaps the TPS and high-idle were causing a vacuum deficiency though? I'd think that woudl result in a hard, non-power-assist pedal though. Sort of like left-foot-braking causing the vacuum reservoir to "run low" on vacuum. (Keep in mind, there's less vacuum being generated when you're on the throttle)
Thread Starter
Burning Brakes
Joined: Apr 2005
Posts: 1,109
Likes: 2
Perhaps the TPS and high-idle were causing a vacuum deficiency though? I'd think that woudl result in a hard, non-power-assist pedal though. Sort of like left-foot-braking causing the vacuum reservoir to "run low" on vacuum. (Keep in mind, there's less vacuum being generated when you're on the throttle)
I am not sure if it had ABS and will check it.
