Air conditioning 95 k1500

[chasebrew2010]

Alright, so not to long ago I bought a heater core for my 95 k1500, and reinstalled it (it was previously bypassed by the owner who had the truck before me). My heater works fine, but as soon as I fixed that, my A.C. stopped blowing cold. I figured it was the blend door actuator, so I took it off to check it out, and even with me manually moving the blend door, the air only went from hot to warm. I know my A.C. is working because all the lines get cold like they should. Cold air just isn't getting to the cab. Any recommendations would be appreciated.

 

-Chase

 

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[bronyaur]

If the lines going in and out of the accumulator are cold, the next stop is the evaporator. Is the evaporator getting cold? Is the fan motor working?

[Ronsoy]

My truck has a heater cut off for the heater core, did yours?

[Motor City Rick]

Turn your AC to "Max Air", make sure your temp control is to the coldest setting / blue side. Go to the engine compartment. on the passenger side, quickly touch the small aluminum line near the heater case area / bulkhead, is it warm / hot to the touch??? Then touch the much larger aluminum line, is it cool / cold to the touch??? If not, AC is low on Freon or AC clutch is not applied. Like bronyaur said, is the fan running to full speed??? If so, then go to the defroster duct area by the windshield, is it cold??? If so, switch the blend door switch to vent, floor or a combination, is air movement occurring??? I need to know is you can switch from hot to cold or from defroster duct to bi-level then to floor. If you were under the dash, something is definitely disconnected.