A/C wiring questions?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chevydog66 · 06-20-2013, 08:10 PM

Is the Anti dieseling relay required for the a/c to work properly in my 72 GMC truck with a 6.0 ls in it?

clinebarger · 06-20-2013, 09:14 PM

At worst....You may need to jump the relay harness, Ive ran across these relays in '71 & '72 Chevelles, The C/K wiring may be different??

I think those anti-diesel capacitor relays are getting hard to find

ls1nova71 · 06-20-2013, 09:38 PM

You won't need it.. all you need is the wire from the switch mounted on the diverter box to the compressor, or your pressure switches depending on what type of system you're running.
Posted via Mobile Device

chevydog66 · 06-20-2013, 10:35 PM

Ok. thanks for the help. Going to buy the Dirty Dingo bracket tomorrow. I am going to try to make the system work with the Sanden compressor, POA update valve, R134 dryer, and condensor, with the original accumulator.

ls1nova71 · 06-20-2013, 10:47 PM

Quote:

Originally Posted by chevydog66

Ok. thanks for the help. Going to buy the Dirty Dingo bracket tomorrow. I am going to try to make the system work with the Sanden compressor, POA update valve, R134 dryer, and condensor, with the original accumulator.

You mean evaporator, right? If you're using the old POA system you won't have an accumulator.

jimmy1976 · 12-10-2013, 08:07 AM

I have a question about the anti-dieseling relay. My blower motor quit work when my relay quit working.I pulled the relay out and there is something rattling around in there so I am pretty sure it is bad. Can I bypass this relay somehow? Any help would be greatly appreciated.

**truckdude239** · 12-10-2013, 11:45 AM

get a new relay?

jimmy1976 · 01-14-2014, 08:10 PM

They are hard to find. I bought a NOS of ebay and it doesn't work.

chevydog66 · 01-14-2014, 08:51 PM

I think LMC truck sells them.

ls1nova71 · 01-14-2014, 09:21 PM

I bought one at oreillys.

06-20-2013, 08:10 PM	#1
chevydog66 GM ONLY BABY!!! Join Date: Oct 2003 Location: Fort Wayne, IN. Posts: 1,998	A/C wiring questions?? Is the Anti dieseling relay required for the a/c to work properly in my 72 GMC truck with a 6.0 ls in it? __________________ 2 wrongs don't make a right, but 3 lefts do. 66 Chevelle Malibu 406ci, 573hp, 10.99@121mph 96 Chevy Silverado Z71 72 GMC 1500 Super Custom LS 6.0/4L65 on airride http://www.cardomain.com/ride/707879...mc-c-k-pick-up

06-20-2013, 09:14 PM	#2
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: A/C wiring questions?? At worst....You may need to jump the relay harness, Ive ran across these relays in '71 & '72 Chevelles, The C/K wiring may be different?? I think those anti-diesel capacitor relays are getting hard to find

06-20-2013, 09:38 PM	#3
ls1nova71 Registered User Join Date: Dec 2009 Location: Independence Mo Posts: 4,119	Re: A/C wiring questions?? You won't need it.. all you need is the wire from the switch mounted on the diverter box to the compressor, or your pressure switches depending on what type of system you're running. Posted via Mobile Device __________________ My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html

06-20-2013, 10:35 PM	#4
chevydog66 GM ONLY BABY!!! Join Date: Oct 2003 Location: Fort Wayne, IN. Posts: 1,998	Re: A/C wiring questions?? Ok. thanks for the help. Going to buy the Dirty Dingo bracket tomorrow. I am going to try to make the system work with the Sanden compressor, POA update valve, R134 dryer, and condensor, with the original accumulator. __________________ 2 wrongs don't make a right, but 3 lefts do. 66 Chevelle Malibu 406ci, 573hp, 10.99@121mph 96 Chevy Silverado Z71 72 GMC 1500 Super Custom LS 6.0/4L65 on airride http://www.cardomain.com/ride/707879...mc-c-k-pick-up

12-10-2013, 08:07 AM	#6
jimmy1976 Registered User Join Date: Dec 2013 Location: Goldsboro Posts: 5	Re: A/C wiring questions?? I have a question about the anti-dieseling relay. My blower motor quit work when my relay quit working.I pulled the relay out and there is something rattling around in there so I am pretty sure it is bad. Can I bypass this relay somehow? Any help would be greatly appreciated.

12-10-2013, 11:45 AM	#7
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,237	Re: A/C wiring questions?? get a new relay? __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

01-14-2014, 08:10 PM	#8
jimmy1976 Registered User Join Date: Dec 2013 Location: Goldsboro Posts: 5	Re: A/C wiring questions?? They are hard to find. I bought a NOS of ebay and it doesn't work.

01-14-2014, 08:51 PM	#9
chevydog66 GM ONLY BABY!!! Join Date: Oct 2003 Location: Fort Wayne, IN. Posts: 1,998	Re: A/C wiring questions?? I think LMC truck sells them. __________________ 2 wrongs don't make a right, but 3 lefts do. 66 Chevelle Malibu 406ci, 573hp, 10.99@121mph 96 Chevy Silverado Z71 72 GMC 1500 Super Custom LS 6.0/4L65 on airride http://www.cardomain.com/ride/707879...mc-c-k-pick-up

01-14-2014, 09:21 PM	#10
ls1nova71 Registered User Join Date: Dec 2009 Location: Independence Mo Posts: 4,119	Re: A/C wiring questions?? I bought one at oreillys. __________________ My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html

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