Question about 2008 GMC Yukon Denali

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Where Is the thermostat on 2008 Yukon Denali

Running hot with no heat, not overheating just running real hot

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 184 Answers

SOURCE: Yukon Denali Fuel Trim bank One and Two running too lean?

Could also be fuel filter, pressure, vacuum leak, etc. Check these two articles out, they should help too - http://www.obd-codes.com/p0171 and http://www.obd-codes.com/p0174

Posted on Dec 21, 2008

emissionwiz
  • 75051 Answers

SOURCE: Heated Seats, Yukon Denali

You will need to replace the switch module, it is the only thing that can cause this to happen

Posted on Apr 13, 2009

motor1258
  • 6674 Answers

SOURCE: 2005 yukon denali is overheating

Start it cold with rad cap off, and heater on high heat, and let it run until you see increased flow in radiator, indicating thermostat opened & engine reached operating temperature. Rev engine slightly every once in a while and hold it there for 10-20 seconds, just to help purge air better/faster. Watch rad flow again, and wait until you see increased flow 3 or 4 times. Then top up coolant in rad to an inch or 2 from top of rad, and put cap back on. Top up return bottle to appropriate level on bottle & then try it again. If it still heats up, get back to me. Does it overheat at all times? Rad fan is good i take it?

Posted on Jul 18, 2009

  • 1 Answer

SOURCE: 2005 yukon denali, a/c worked fine until battery died

Turn ignition switch ON then OFF then depress and release gas pedal 5 times to reset the computer. Worked for me.

Posted on Jul 28, 2009

  • 14036 Answers

SOURCE: What the normal transmission temp Yukon Denali XL 2008

TRANSMISSION FLUID NORMAL TEMPERATURE IS 200 DEGREES.

Posted on Sep 28, 2009

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1 Answer

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under the hood I would check the thermostat to make sure it open so that the hot antifreeze reaches the sensor to make the fan start

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I Have a 2003 Yukon denali & I dont get no heat i change the thermostat & antifreeze but no heat


1) Check your water pump is working OK and
2) You may have an airlock in the system. Take the expansion or header tank cap off, set your heater control for hot and exterior air. Start the car and run it till warm. With luck you'll run any air locks out of the system. While warming up, and being very, very careful, try squeezing the main radiator in and out tubes (The fattest) this may also move any air locks on. BUT BE CAREFUL, STAY AWAY FROM AND FANS AND PULLEYS. IF NOT SURE, DON'T DO IT OR STOP THE ENGINE FIRST.

With luck, you should soon start to feel warm air coming from the vents.

Mar 29, 2011 | 2003 GMC Yukon Denali

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My 2006 GMC Yukon XL Denali 6.0L is over heating and the interior heat does not work. Is this the water pump or is there a thermostat sticking? I'm in the mountains and thought maybe something was frozen...


overheating can be caused by stuck shut t-stat but u would have heat at-stat stuck open no overheating and no heat. a waterpump that the impeller broke or rotted of can cause your problem but rarly seen does your fan work or any leakage or low coolant can cause air pocket and overheating no heat. let me know and we go foward

Feb 10, 2010 | 2006 GMC Yukon Xl Denali

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Coolant too hot message displayed 2005 gmc yukon denali


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Jan 14, 2010 | 2005 GMC Yukon Denali

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Oveerheating


You tried a flush and fill? Check your water pump. Look close at it with engine not running to see if any water is coming out of the weep hole which is underneath. Sometimes you can tell if it is bad if any noise is coming from it. Also the propellers may be worn out or broken which either case it will cause overheating. Buy yourself a repair manual at the auto parts store and read up on it if you do your own work.

Oct 15, 2009 | 1996 GMC Yukon

1 Answer

Transmission temp running 160 degrees in my 2007 Yukon Denali


I you did it by yourself is better to tell the dealer that you truck has that problem dont tell them that you did that because you may have voided the warranty.

Jul 18, 2009 | 2007 GMC Yukon Denali

1 Answer

2005 yukon denali is overheating


Start it cold with rad cap off, and heater on high heat, and let it run until you see increased flow in radiator, indicating thermostat opened & engine reached operating temperature. Rev engine slightly every once in a while and hold it there for 10-20 seconds, just to help purge air better/faster. Watch rad flow again, and wait until you see increased flow 3 or 4 times. Then top up coolant in rad to an inch or 2 from top of rad, and put cap back on. Top up return bottle to appropriate level on bottle & then try it again. If it still heats up, get back to me. Does it overheat at all times? Rad fan is good i take it?

Jul 18, 2009 | 2002 GMC Yukon Denali

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