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Temp Gauge keeps climbing

LVQuad

By LVQuad
in Ask A GM Technician

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LVQuad Enthusiast

LVQuad

Posted
Posted

Hi all,

 

I had a problem show itself today. I was doing some running around town today and noticed the temp Gage riding steady at about 220 degrees. The outside temp was 99 degrees. After I stopped at my first stop I came back out to continue my errands and the temp gauge read about 240 degrees now. I didn't notice any unusual characteristics so I continued cautiously to my next stop. Again I came out and started the truck and now I was at 265 degrees! No overheating, no pinging, no lack of performance, all seemed normal otherwise. after returning home I let the truck sit for about 1 1/2 hours and came out to check it and started it up and it still read about 245 degrees.

 

Does anyone have any suggestions what might be making the temp gauge act like this? The other gauges are all reading normal readings. Can I reset the gauges by unplugging a fuse or something?

 

Thanks, Eric

 

P.S. The trans temp guage never went above 195 (normal).

hoorders Enthusiast

hoorders

Posted
Posted
Hi all,

 

I had a problem show itself today. I was doing some running around town today and noticed the temp Gage riding steady at about 220 degrees. The outside temp was 99 degrees. After I stopped at my first stop I came back out to continue my errands and the temp gauge read about 240 degrees now. I didn't notice any unusual characteristics so I continued cautiously to my next stop. Again I came out and started the truck and now I was at 265 degrees! No overheating, no pinging, no lack of performance, all seemed normal otherwise. after returning home I let the truck sit for about 1 1/2 hours and came out to check it and started it up and it still read about 245 degrees.

 

Does anyone have any suggestions what might be making the temp gauge act like this? The other gauges are all reading normal readings. Can I reset the gauges by unplugging a fuse or something?

 

Thanks, Eric

 

P.S. The trans temp guage never went above 195 (normal).

 

 

 

 

My 2000 silverado with a 5.3 in it has done this as well...........but only when its been really smokun hot hotside and I have had my aircon on and sitting in traffic.........it didnt overheat but the temp gauge git pretty high up in the scale..........I dont think there is much I can do in ther conditions I described.............sounds like the same happened to you. :driving:

MrQuadrasteer Senior Enthusiast

MrQuadrasteer

Posted
Posted

Eric, wasssuppp ?!!!!?

 

What the heck happened ?!?!?

 

Maybe a sensor failing ?? Did it *seem* hotter than usual, or just according to the gauge ??

 

The trans temp staying normal kinda makes me think maybe it's just a sensor or gauge bailin' on ya :driving:

 

But... ummm..... I'm no GM Expert :P:D !!!!!

GM-Tech Senior Enthusiast

GM-Tech

Posted
Posted

If it was really over 260 degrees, that coolant would be percolating in the recovery tank and the engine would be rattling, etc. Sounds like a gauge problem.

 

No, there's no resetting of the guages.

LVQuad Enthusiast

LVQuad

Posted
  • Author
Posted

Thanks guys.

 

I kind of figured it was a malfunction somewhere. The gauge now reads somewhere around 280-290 degrees and its cold!

 

I guess its off to the dealer.

 

Thanks again, Eric

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