Question about 1996 GMC Jimmy

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Why is the a/c blowing warm air a day after filling it with freon?

Couldn't find a leak so we used the dye with the freon less than an hour later hot air and no leak anywhere.

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  • 47 Answers

Probably leaking inside cabin area under dashboard.

Posted on Jul 16, 2016

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Posted on Jan 02, 2017

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Anonymous

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SOURCE: 93 gmc sierra heater not working

THERMOSTAT REPLACE IF NOT SEE IF HOSES ARE CLOGGED SHOT OF AIR COULD HELP OR DISSCONNECT BATTERY CABLE 10-15 MIN CONNECT BACK TRY HEATER

Posted on Jan 04, 2009

armstrong750

  • 109 Answers

SOURCE: A/C blowing hot air and can't find leak....

Its probably inside the dash, either in the coil or the connections

Posted on May 06, 2009

Anonymous

  • 78 Answers

SOURCE: My air blows hot

Got to your auto parts store and get a can of R-134a refrigerant with the filling cable, but make sure it's the version that has the red dye in it. Run your car with the A/C and add the canister to the low pressure side of the A/C hookups. The dye will show you the leak, but it may not be in the engine compartment, it may be at the heat exchanger inside the dash, which is difficult to access.

Posted on Jun 25, 2009

DEAN KING

  • 2 Answers

SOURCE: My Air Conditioner in my 1994 GMC Sierra V6 Truck

I BROUGHT A 94 SIERRA, THAT WAS IN A ACCIDENT. THE DOOR WON'T LINE UP, EVEN WHEN I ADJUST THE BOLTS. IS THERE ANY OTHER WAY THAT I CAN LINE IT UP?

Posted on Apr 08, 2011

jas0518

jason

  • 130 Answers

SOURCE: 2002 yukon ac blows hot

he may not have checked the evaporator core which is under the dash. you can take off the black cover in the passengers floorboard. should be two 7mm screws then there is a long thin black piece that unlatches revealing the cabin filter. remove the cabin filter and look for signs of a leak if he put leak dye in it. or look for oily residue.

Posted on May 30, 2011

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Undefind Freon leak


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