NO HEAT

2005 GMC Yukon

Tiny

Pat4752

October, 6, 2008 AT 12:32 PM

Heater problem
2005 GMC Yukon V8 All Wheel Drive Automatic 50000 miles

Hi,

My 2005 Yukon is not blowing warm air when in the heat mode. It will blow exceptionally cold air when in the air conditioning mode. ANy ideas what to check first?

FOUND 6253 RELATED QUESTIONS

No Heat

37 ANSWERS
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1 Answer

Tiny

rasmataz

October, 10, 2008 AT 4:11 PM

Try replacing the thermostat for a start-don't work you could be dealing with a malfunctioning air mix/blend/mode/ doors to include an actuator/vacuum problems.

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