heater assembly dilemma - The 1947 - Present Chevrolet & GMC Truck Message Board Network

traie8 · 12-10-2002, 09:32 PM

Here's one I can't figure out (see pic). This is (or what is left of) my AC / heater assembly. My 72 C-10 was once equipped with factory air, but previous owners modified it to the point that I don't know where to start. I would like to return it eventually to the original factory air, but that will take mooey $$$$$. So, my questions are 1) is there any way I can convert this into just heat by switching the AC assembly to just a heater only assembly and also changing the underdash box and the heater / AC controls switches on the dash? OR 2) can I somehow get the heat to work without the air with this current setup? I've looked at the original schematics, but it just gives me a HEADACHE!!! 3) I've never seen this before...how can the heater hoses be where they are now (see pic)????? Thanks for any help that you all might be able to offer.

jay-dawg · 12-10-2002, 09:34 PM

looks like you are going to need a new heater box. Where do the hoses go in the cab?

jay

traie8 · 12-10-2002, 09:38 PM

I assume they go into the resistor, valves, and relay assembly under the dash

**BIG ORANGE** · 12-10-2002, 09:42 PM

Sent you a PM about your problem!

12-10-2002, 09:32 PM	#1
traie8 Registered User Join Date: Jul 2002 Location: Jackson, Michigan Posts: 10	heater assembly dilemma Here's one I can't figure out (see pic). This is (or what is left of) my AC / heater assembly. My 72 C-10 was once equipped with factory air, but previous owners modified it to the point that I don't know where to start. I would like to return it eventually to the original factory air, but that will take mooey $$$$$. So, my questions are 1) is there any way I can convert this into just heat by switching the AC assembly to just a heater only assembly and also changing the underdash box and the heater / AC controls switches on the dash? OR 2) can I somehow get the heat to work without the air with this current setup? I've looked at the original schematics, but it just gives me a HEADACHE!!! 3) I've never seen this before...how can the heater hoses be where they are now (see pic)????? Thanks for any help that you all might be able to offer. Attached Images

12-10-2002, 09:34 PM	#2
jay-dawg chevelito Join Date: Jun 2001 Location: Honolulu, HI USA Posts: 1,609	looks like you are going to need a new heater box. Where do the hoses go in the cab? jay __________________ New deadline...when my son can drive. Aloha from Honolulu, HI

12-10-2002, 09:42 PM	#4
BIG ORANGE Senior Member Join Date: Oct 2001 Location: Lancaster S.C. Posts: 4,752	Sent you a PM about your problem! __________________ Things happen for a reason!

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12-10-2002, 09:38 PM	#3
traie8 Registered User Join Date: Jul 2002 Location: Jackson, Michigan Posts: 10	I assume they go into the resistor, valves, and relay assembly under the dash



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