The temp gauge spikes

Tiny
SKIP
  • MEMBER
  • 1997 GMC JIMMY
  • 170,000 MILES
When idling the temp gauge spikes to almost max the goes down to low when driving. Could this be the Thermostat?
Thursday, February 9th, 2012 AT 11:43 PM

1 Reply

Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
IT IS POSSIBLE

I'D PUT MORE FAITH IN THE COOLING FAN IS NOT CYCLING ON TO COOL THE RADIATOR.

BAD MOTOR--RELAY BAD---FUSE--ETC

WHEN YOU ARE MOVING AIR DOES FLOW OVER THE RADIATOR FINS---SITTING STILL. NOTHING

LET ME KNOW WHAT YOU ARE-A-FINDIN'

THE MEDIC
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Friday, February 10th, 2012 AT 12:12 AM

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