tempature gauge problems - The 1947 - Present Chevrolet & GMC Truck Message Board Network

OARNGESI · 11-20-2013, 06:03 AM

hi i got a 08 sierra with a v6, and every couple days the gauge stops working the check engine light comes on and my gauge reads engine hot ac turned off. if you reset the light the gauge starts working then a day or two later it does the same, we changed the sensor and there was no change anyone know what this could be?

mag68 · 12-07-2013, 01:47 AM

It's probably a failing thermostat. I know that sounds stupid and ironic but it's just the way the computer works and tries to protect itself. If your motor is truly not overheating and the temp sensor is not bad, it probably is the thermostat opening too early. Often the motor is actually too cool, not too hot. (long story I don't feel like typing). Anyway, for < than $10 bucks you should be good to go again. You will also need to reset the code by disconnecting the negative battery lead for a minute or two. I'm pretty confident this will fix your issue.

OARNGESI · 12-08-2013, 08:01 AM

yeah I swapped in a new one and topped off the water about aweek ago.

crunchyg · 12-08-2013, 10:33 PM

Oarngesi, did replacing the thermostat fix the problem? If not, we can try a couple of other things.

OARNGESI · 12-09-2013, 07:48 AM

it seems good for now thanks

11-20-2013, 06:03 AM	#1
OARNGESI Registered User Join Date: Sep 2008 Location: CASA GRANDE AZ Posts: 4,276	tempature gauge problems hi i got a 08 sierra with a v6, and every couple days the gauge stops working the check engine light comes on and my gauge reads engine hot ac turned off. if you reset the light the gauge starts working then a day or two later it does the same, we changed the sensor and there was no change anyone know what this could be? __________________ 70 SWB STEPSIDE 70 BLAZER 09 challenger

12-07-2013, 01:47 AM	#2
mag68 Registered User Join Date: Oct 2010 Location: College Station, Texas Posts: 8	Re: tempature gauge problems It's probably a failing thermostat. I know that sounds stupid and ironic but it's just the way the computer works and tries to protect itself. If your motor is truly not overheating and the temp sensor is not bad, it probably is the thermostat opening too early. Often the motor is actually too cool, not too hot. (long story I don't feel like typing). Anyway, for < than $10 bucks you should be good to go again. You will also need to reset the code by disconnecting the negative battery lead for a minute or two. I'm pretty confident this will fix your issue. __________________ 1976 Chevy 454 C-10 Silverado 2004 GMC Sierra 5.3L 1/2 Ton Crew Cab 1968 Camaro SS RS Last edited by mag68; 12-07-2013 at 02:08 AM. Reason: Info added

12-08-2013, 08:01 AM	#3
OARNGESI Registered User Join Date: Sep 2008 Location: CASA GRANDE AZ Posts: 4,276	Re: tempature gauge problems yeah I swapped in a new one and topped off the water about aweek ago. __________________ 70 SWB STEPSIDE 70 BLAZER 09 challenger

12-08-2013, 10:33 PM	#4
crunchyg Registered User Join Date: Jun 2012 Location: Michigan Posts: 6	Re: tempature gauge problems Oarngesi, did replacing the thermostat fix the problem? If not, we can try a couple of other things.

12-09-2013, 07:48 AM	#5
OARNGESI Registered User Join Date: Sep 2008 Location: CASA GRANDE AZ Posts: 4,276	Re: tempature gauge problems it seems good for now thanks __________________ 70 SWB STEPSIDE 70 BLAZER 09 challenger

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