The idle will not stay steady

Tiny
ROY
  • MEMBER
  • 2002 CHEVROLET SILVERADO
  • 121,000 MILES
My 2002 silverado 4.8 the idle wont stay steady the rpm goes up and down and it dies, and some times the idle goes up at start up like it should
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Thursday, December 22nd, 2011 AT 2:42 AM

1 Reply

Tiny
PROAUTOTECH
  • EXPERT
Have it scanned to see if it's storing any codes at autozone or another store for free. Let me know what the codes are. But, also listen to it very closely under the hood. Often times you can hear a vacuum leak. A hose could have come unhooked, or split in half, that could easily cause what you are experiencing. Could be other things, but let me know what you get from the scan. Thanks!
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Thursday, December 22nd, 2011 AT 3:09 AM

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