Questions & Answers for: GMC wont defrost

...defrost so the hot air wont crack a cold windshield.it sounds like altenator not keeping up. have it tested.if the engine realy boogs down with the a/c turned on the a/c compressor might be ...

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Question about 1993 Suburban

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defrost vent door wont open This 92 k 1500 I just bought is in excellent shape, with 125,000 and only 65,000 on the motor. Due to the low miles and under usage, the defrost door inside the venting ...

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Question about 2001 Yukon

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rear wiper doesnt work rear wiper wont work, at all neither will the rear defrost could it be the switch? i would check the fuse panel

...wont blow out of the front vents only the defrost vents I took it into a gmc dealer and before I took it there when i turned my truck on and air came out of front vents right at first then went ...

Question about 2005 Sierra 1500 Hybrid

1 Answer

defrost. wont blow out vents or feet. my defroster is stuck blowing on vent and will not switch over to heat on the floor or defrost either a vacumn pipe is broken or the ends split so its not passing

...defrost in a 97 gmc jimmy my a/c/heat wont blow out the dash vents it blows fine out the defrost and the floor when i turn the switch it will not switch to anything other then the defrost what could ...

...blow out my vents just my defrost vents and it wont switch from ac to heat in my 97 gmc jimmy whats the problem blend door sticking not sure if this year has an electronic actuator for the door or ...

Question about 2003 Yukon Denali

1 Answer

04 yukon blower stuck in defrost It blows in all the settings, but it just wont change from defrost to the vents or floor. Bring to shop since you obviously do not know what you are doing.

Question about 1999 Sierra

1 Answer

...Defrost floor and panel wont blow air Are you saying you don't have blower at all? Defrost, floor and panel are the only three separate modes you have. If it's not blowing at all and the fuses are ...

my 2000 gmc truck is stuck in defrost and wont engage into ant other mode butblows a/c through defroster check for broken vacuum lines

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