Question about 1993 GMC Safari

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No heat in front

Heat works in the back but there is no heat in the front. It is not the blower, iits working.

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  • 18 Answers

You need to check the heater control in the dash for proper operation. also check the blend door in heater box. good luck.

Posted on Jan 24, 2013

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Posted on Jan 02, 2017

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onyeredson
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SOURCE: no heat

Do yourself a favour and perform a system Bleed! you have an air lock! want more info?
Get back to me!

Posted on Jan 25, 2009

carfreak1217
  • 109 Answers

SOURCE: 1999 yukon denali front blower motor not working

Check Fuse #3 in the under hood fuse block it is the only common connection I can make.

Posted on Jun 28, 2009

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1 Answer

My Kia Sedona 2012 minivan front heat and ac does not work while the rare heat, ac and defrost works


Are the controls lighting up? dose the blower motor work? If the controls don't light up you may have a control head locked up you can do a reset by unplugging the IOD fuse for 2 mins and then plugging it back in. If the all the lights work in the control head and the blower isn't working try turning the front blower on high and then tapping the motor itself if it works after hitting the motor you will need to buy a new blower motor.

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there is a blower relay circuit board located right by the blower motor which sounds like your problem to me i've worked on several that had the same type problem and thats what it was. the two blower motor wires will plug into it and there are two screws that hold it on

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My front heater is throwing very little heat the back is throwing more heat could hear the back blower but not the front


If you cant hear the blower on the front side, its probably gone out. If you can hear the blower and theres cold air coming out the vent, its the flap that switches from hot to cold thats not working

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3 Answers

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The blowers ion the back have there own blower motor. The front has it's own. The resister controls the range the blower motor runs on,( low, medium, high). If the blower motor is not working it may be the motor itself. Was the fuse checked:?

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1999 yukon denali front blower motor not working


Check Fuse #3 in the under hood fuse block it is the only common connection I can make.

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1 Answer

No heat in front but back heat is working


could be a blower motor resistor or a faulty blower motor. if no air is coming out of the vents when you turn the switch to on there is a fault in the electrical system somewhere. the rear blower system is pretty much totally separate from the front so therefor rear hvac is working properly. test blower motor resistor and blower motor current and see if its putting out any power also make sure the wires going to the blower motor are hot also.

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blower motor resistor is in the front (right?) wheel well.

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