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my tachometer needle is jumping

2002 CHEVROLET CAVALIER
85,040 MILES
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COLVINCHASTITY
  • MEMBER
  • 1 POST
i have a 2002 cavalier with a 2.2..the rpm needle jumps a little but I dont know if its the throttle body or the iac valve. I havent tried anything was going to go to auto zone and have them hook it up to computer
Jan 4, 2012 at 11:11 AM
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SATURNTECH9
  • ✓Experienced Mechanic
  • 30,869 POSTS
Lets start by seeing if there are any codes if there are write them down and let me know the exact code numbers.Lets start there.
Jan 4, 2012 at 11:14 AM
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