cracked TPS
Thread Starter
Racer
Joined: Aug 2015
Posts: 329
Likes: 23
From: douglasville georgia
cracked TPS
While I was attempting to remove a vacuum line from my throttle body I cracked the throttle position sensor. I cant see the crack, I only heard it when the screwdriver I was using to loosen the vacuum line slipped and put pressure on the TPS. Now my car idles around 1050 rpm and during shifts it holds the rpm wherever it is when I engage the clutch for a few seconds then it drops slowly to around 1050 and stays there.
I sprayed throttle body cleaner at the TPS and the rpm dropped till the fluid evaporated then it went back up. I did this several times with the same results.
Looking at the TPS itself though I cant see how it would cause a vacuum leak.
Its a 1994 6 speed.
I sprayed throttle body cleaner at the TPS and the rpm dropped till the fluid evaporated then it went back up. I did this several times with the same results.
Looking at the TPS itself though I cant see how it would cause a vacuum leak.
Its a 1994 6 speed.
Drifting
Joined: Mar 2013
Posts: 1,952
Likes: 239
From: Venice Cali.
The tps sensor is just a potentiometer, which many things use joystick ect. It may function fine still but they are sensitive to moisture and dust so you are on borrowed time unless you can seal the crack. Anyways sounds like you created a vacume leak as I don't think the pot is tied into your intake exept mabe the linkage is bent
Good luck
Good luck
Thread Starter
Racer
Joined: Aug 2015
Posts: 329
Likes: 23
From: douglasville georgia
The tps sensor is just a potentiometer, which many things use joystick ect. It may function fine still but they are sensitive to moisture and dust so you are on borrowed time unless you can seal the crack. Anyways sounds like you created a vacume leak as I don't think the pot is tied into your intake exept mabe the linkage is bent
Good luck
Good luck
Thread Starter
Racer
Joined: Aug 2015
Posts: 329
Likes: 23
From: douglasville georgia
Depends on what chemical you use when searching for a leak. Brake cleaner and carb/throttle body cleaner will drop the rpm and starting fluid will increase rpm. I haven't owned a can of starting fluid since the 80's lol.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski