Question about 2004 GMC Yukon
Most likely a bad connection or bad connector try wiggling it and see if it comes back to life if so use a small pick or awl to close the pin in the connector shell a little and reseat the connector
Posted on Jan 04, 2013
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Posted on Jan 02, 2017
you have covered all the bases,
you need to go to a chev dealer and ask someone in service if there are any TSB's on your problem,
Technical Service Bulletins,come from the manufacturer,
when they get alot of complaints,they send there people out to find the exact problem,then they send bulletins out to dealers so they can repair there customers cars.
Posted on Dec 26, 2009
Did you replace the sending unit on the drivers side head between the number 1 and 3 spark plugs? That is the one for the gauge
Posted on Apr 17, 2010
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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