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1990 Chevy Cavalier

Tiny
J3331
  • MEMBER
  • 1990 CHEVROLET CAVALIER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 266,000 MILES
My car runs fine in park and neutral but it stalls as soon as you tap the breaks or put it in gear. I was told it was the throttle position sensor, so I replaced it to no avail. Im thinking it a vac leak or a different sensor, ether way its something simple.
thanks for the help
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Wednesday, February 10th, 2010 AT 8:15 PM

5 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If your tps was bad it would normally set the service engine light on. Try taking choke cleaner and spraying the throttle plate on both sides cleaning all the oil deposits off as this causes alot of problems like you describe. There is an oblong hole as well that the IAC goes to, clean that as well. Th car may start hard after that and make sure that you install the duct bak on before you start the car. See if that helps.
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Wednesday, February 10th, 2010 AT 9:02 PM
Tiny
J3331
  • MEMBER
  • 3 POSTS
So far no service engine light came on. I'll try choke cleaner and i'll let you know what I come up with. Now the tricky part is getting to an automotive store with no car. Well I guess today the bus is my best friend.
Oh ya I forgot to say I can rev the engine and tap the breaks and it still stalls. Other than that it will run all day in park/neutral
thanks again for the suggestion, i'll keep you informed.
Jason.
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Thursday, February 11th, 2010 AT 6:16 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
I just wonder if your computer is bad as tis has me kind of stumped. You really should have aprolook at thisso he has it available to look at.
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Friday, February 12th, 2010 AT 9:18 AM
Tiny
J3331
  • MEMBER
  • 3 POSTS
Ok so it turns out is was a bad body ground, my car is getting rusty as they salt the roads so much here in Winnipeg, so I put it on a clean piece of steel and wallah still runs like a champ. I don't plug my car in in winter and it hits -50 Celsius on a cold day and she still starts.
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Wednesday, February 17th, 2010 AT 5:59 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Ok forgot about that I guess I assumed that you had already checked that stuff.
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Wednesday, February 17th, 2010 AT 8:19 PM

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