Question about 1997 GMC Yukon
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Posted on Jan 02, 2017
SOURCE: 1988 gmc sierra temp gauge
you could have an air lock in the system. Run with rad cap off and cycle the thermostat, adding coolant as required. Or a possible heater core.
Posted on Mar 05, 2009
SOURCE: 2002 GMC won't start
I have the same model and went through the same trouble. Last summer I put a reman'd starter on it and had no problems again until about 4 months ago, it started all over again. I was sure then that it wasn't the starter. I talked to the mechanic at work and we walked over to the parts locker and all the GM starters on the shelf (remans) had the solenoids replaced, we said in unison, Must be a common problem.
I figured the original starter lasted 130,000 miles so I went to Napa and bought a brand new one. Working like a champ ever since.
Posted on May 03, 2009
To review, you have two temp sensors, one for the gauge on the dash and one for the computer. If you unplug the sensor for the computer the reading will be minus 30 degrees or over 300 which will make it very hard to start. Unplugging the sensor for the gauge would have no effect on the computer.
According to the wiring diagram, the wire for the temp gauge is green, and the wires for the temp sensor for the computer are yellow and black.
Posted on Aug 24, 2012
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