Question about 1999 GMC Suburban

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A/C not blowing in front

The ac is not blowing in font

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There is a spring located on the rear of the truck that runs in between the line that allows are to go from front to rear the part only cost a few bucks same thing happened to me that spring was stuck closed and was blocking the line

Posted on Sep 03, 2008

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My 2000 Chevy Tahoe front ac dosnt work but rearworks blows hot air


Sounds as if you have more than one problem. If the rear is blowing hot then the AC is not working. The front should also blow hot if the front fan motor is functioning.Youi need to have the system pressures tested for proper freon levels and have the front blower motor system tested if it is not working

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Rear AC blows but front doesn't blow at all. It just all of a sudden quit working today. Also when the AC was working up front the car would act like it was going to stall out and has actually died on...


Sorry no quick fix here as this gas is highly toxic and poloutes the ozone layer so take vehicle to a specialist AC garage who can then vacate the system and then check the front ac unit expansion valve or the restrictor valve if you call it that

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1999 GMC Yukon. Rear AC cooling great. Font AC not cooling as well. Replaced orfice syphon tube, vaccumed down and recharged with 2lbs R134a. Checked front temp controller. All checks ok. Front AC still...


If the rear is working well and front is not I would suspect a blend door or actuator issue in the front.Double check and see if you can hear anything moving when you are adjusting temperature from hot to cold.Also check and make sure the air flow moves properly from defrost to vents and floor etc.

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Front AC blower doesn't work.


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I have a 2004 GMC Yukon with auto climate control. The front a/c is working but the fan will not come on. The rear a/s works fine. Checked fuses, they are all good. Any suggestions?


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1 Answer

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Have the compressor tested

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1 Answer

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