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No idle

Tiny
CANTFIX
  • MEMBER
  • 1992 CHEVROLET CHEYENNE
  • V8
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
1992 CHEVY PU WILL NOT IDLE. NEW FUEL PUMP & FILTER. NEW THROTTLE BODY, TEMP. SENDER, IDLE CONTROL MOTOR, FUEL PUMP RELAY, IGNITION MOD.
ALMOST STUMPED 305 CU IN.
THANK YOU FOR ANY HELP
Saturday, February 26th, 2011 AT 7:38 PM

4 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
How long since overall tune-up? Any applicable trouble codes? Use a gage and check fuel pressure. Any electrical part, if there is a problem with electrical wiring, replacing the part won't fix. Does it run ok, off idle?
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Saturday, February 26th, 2011 AT 7:49 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Jus to add, some possible causes, below.
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Saturday, February 26th, 2011 AT 7:55 PM
Tiny
CANTFIX
  • MEMBER
  • 2 POSTS
JDL,
Thanks for the reply. We finally found the problem. Changed the temp. Sensor and found a broken vacuum hose. It was -25 C here when we changed the throttle body and I guess the hose split on the bottom side when we put it back on.
Appreciate the help.
Lorne
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Sunday, February 27th, 2011 AT 4:11 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Glad you got it going your way.
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Monday, February 28th, 2011 AT 3:47 PM

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