HELP!! AC/Heater cables placement / size - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mt Al · 08-01-2002, 10:27 PM

This is driving me crazy!!

I'm putting in new AC/Heater cables in the suburban. It only had one cable in it when I got it (the one from the temp slide that goes into the engine compartment) and I haven't had an AC cab for over 14 years and can't remember which of the other two goes where and hooks up to what.

I have three cable lengths from good old GMC Paul. I assume that I need to hook up the two shorter ones from one of the top two slides to either the metal heat/defrost box on the hump and the other to the heat/AC hose diverter (and the AC compressor switch on the back).

Can some kind soul tell me which cable goes to which slide that hooks to which box?

Thanks. My wife and children also thank you.

RodC · 08-01-2002, 10:42 PM

Not sure if what you need is there, but I have all the diagrams from the Chassis manual on my webshots site. Address is in my signature....

billogna · 08-01-2002, 11:35 PM

You probably know by now, but I'll post anyway. The top slider goes to the closest box by your feet to switch between the defroster vents and bottom vents. The middle slider goes to the center box with the a/c switch, and has the shortest cable.

mt Al · 08-02-2002, 11:23 AM

Thanks much. Both of you helped a lot. The diagrams from the book are great! Now I know what all that vacuum crud is trying to do.

I'll be re-A/Ced by tonight (God willing).

Thanks again, this board is great.

08-01-2002, 10:27 PM	#1
mt Al Registered User Join Date: Aug 2001 Location: Bozeman, Montana Posts: 243	HELP!! AC/Heater cables placement / size This is driving me crazy!! I'm putting in new AC/Heater cables in the suburban. It only had one cable in it when I got it (the one from the temp slide that goes into the engine compartment) and I haven't had an AC cab for over 14 years and can't remember which of the other two goes where and hooks up to what. I have three cable lengths from good old GMC Paul. I assume that I need to hook up the two shorter ones from one of the top two slides to either the metal heat/defrost box on the hump and the other to the heat/AC hose diverter (and the AC compressor switch on the back). Can some kind soul tell me which cable goes to which slide that hooks to which box? Thanks. My wife and children also thank you. __________________ '72 GMC 1/2T 4x4 1500 Super Custom pickup (current) past rides were: '70 Chev 2wd farm truck '71 GMC 2wd 1/2T 402 nice! '72 Chev 2wd 1/2T 396 '72 GMC 3/4T 4x4 2500 Super Custom suburban. Bozeman, Montana

08-01-2002, 10:42 PM	#2
RodC Registered User Join Date: Nov 2001 Location: Fairmont WV Posts: 304	Not sure if what you need is there, but I have all the diagrams from the Chassis manual on my webshots site. Address is in my signature.... __________________ Rod Childers '71 C10 Stepside

08-01-2002, 11:35 PM	#3
billogna Registered User Join Date: Apr 2002 Location: Choctaw, OK Posts: 235	You probably know by now, but I'll post anyway. The top slider goes to the closest box by your feet to switch between the defroster vents and bottom vents. The middle slider goes to the center box with the a/c switch, and has the shortest cable. __________________ '69 Chev Cust/10 swb, 350/700R4, 5"/6" '70 Chev C10 swb, 67 front, 454/700r4, 4"/5" '73 Chev stepper, 350/3 spd '84 Chev K20 350/4 spd '91 GMC 1500 Suburban 4x4, 350/700R4

08-02-2002, 11:23 AM	#4
mt Al Registered User Join Date: Aug 2001 Location: Bozeman, Montana Posts: 243	Thanks much. Both of you helped a lot. The diagrams from the book are great! Now I know what all that vacuum crud is trying to do. I'll be re-A/Ced by tonight (God willing). Thanks again, this board is great. __________________ '72 GMC 1/2T 4x4 1500 Super Custom pickup (current) past rides were: '70 Chev 2wd farm truck '71 GMC 2wd 1/2T 402 nice! '72 Chev 2wd 1/2T 396 '72 GMC 3/4T 4x4 2500 Super Custom suburban. Bozeman, Montana



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.