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GMC
Jimmy
Interior
Instrument Cluster
Gauges
Engine Temperature
The temp gauge spikes
1997 GMC JIMMY
170,000 MILES
SKIP
MEMBER
1 POST
When idling the temp gauge spikes to almost max the goes down to low when driving. Could this be the Thermostat?
Feb 9, 2012 at 3:43 PM
CJ MEDEVAC
✓
Experienced Mechanic
11,000 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
Feb 9, 2012 at 4:12 PM
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