DEALER installed A/C question. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

fade94 · 08-08-2005, 09:25 AM

I will be getting the under dash unit soon. However, I will be needing the under hood aspect and possibly the hoses. I have checked a couple of catalogs but have not found anything for this option. Does someone have pics of the underhood setup for the dealer installed air? Looking for what brackets and compressor to look for. I assume I can use the same drier and condensor that is used for the factory A/C. Truck has a 350 in it with the new style alt on the PASS side. Need to know what I need to keep alt where it's at. I can move it to DR side if I need to (I have the brackets).

**tnblazerk5** · 08-08-2005, 09:47 AM

is the truck a v8 or a 6 cyd ? and if your not looking or the exact parts just about any ac pump and other stuff will work ,so i have been told by my local ac buddy , i have got 2 trucks i am going to put uderdash units in and he told me to start collecting parts well i got the under dash parts and i got all the stuff to instale one of the ac in one truck still lookin for the other stuff for the other truck
i also have got a 70 gmc jimmy with dealer instaled ac i can get pics from, its a 6 cyd with old stile ac pump and its going to get changed to a differant pump if i keep the 6banger in it

fade94 · 08-08-2005, 09:59 AM

Updated my post with 350 and other details.

Jwill41 · 08-08-2005, 10:28 AM

I have a 67 with 283 and dealer installed under dash ac. I can get pics this evening if you want.

fade94 · 08-08-2005, 10:52 AM

Pics would be great. I can't find parts if I don't know what they look like..

bagged91 · 08-08-2005, 05:38 PM

Is this the system you are refering to:

http://67-72chevytrucks.com/vboard/s....php3?t=164937

I am looking for the same thing. If you have everything under the dash, to the firewall, and a stock condensor & drier, then you are about where I am. For the A/C lines, you will need either the stock ones from the aftermarket kit or lines from a pre 71' Burb with the tunnel roof air system(see picture below, I got artistic for you

). You will also need barbed fittings for the rubber lines to attach to the condensor & drier. The lines are different than those on a pickup truck with the factory installed 4 seasons system as the pickup truck lines have the low pressure valve on the POA valve, whereas the pre 71 Burb & underdash systems didn't use a POA valve... 72' Burb with A/C is same hose as pickup...

Once you have the lines figured out, the compressor & brackets & pullies are the same as the factory A/C unit(if you are using the system pictured in the link above). If you are using a different system, the operating principles are still the same so the above mentioned parts should work fine

If you have a copy of the Factory Service Manual, they discuss the service procedures for this system in there under the "GM-Chevrolet Air Conditioning System".

L8R - Joe

**john** · 08-08-2005, 05:45 PM

Old Air Products sell reproduction condensers and lines. You can get brackets for long or short pump and left or right side to use Sanden compresser. Heres a pic of their mount. You can buy parts or a kit. It replaces the original heater unit with heat/A/C. Or you can go the auto wrecker and buy parts to use the factory type A-6 compresser on the drivers side which is what I did on mine. The long pump parts are plentiful in the yards. Hope this helps some. John

http://www.oldairproducts.com/shop/index.php

Jwill41 · 08-08-2005, 06:16 PM

This is the one in my 67.

Jwill41 · 08-08-2005, 07:33 PM

I dont want to intrude on your thread but I have a quick question while we are on the subject. I added freon to mine yesterday and it is working great except, only the high speed works on the fan. Do I need a new switch or something like that ? Any other ideas?

bagged91 · 08-08-2005, 10:24 PM

Your fan resistor went bad. It is located above the blower motor assembly. You should be able to get to it by removing the glove box liner instead of dropping the unit and losing your charge... It is held on with 2 3/16" screws... See attached pics of mine... The part # on the blower resistor made by INDAK is: PN# 3929051.

An interesting note, yours is almost identical to mine but I did notice that they changed the area where the switches are. Yours looks like the City/Highway & Lo/Med/Hi are molded directly into the plastic whereas mine has a seperate plastic bezel with an aluminum trim plate with the lettering printed on it.

Since yours is complete & working, would you be able to get a couple of pics of how the hoses connect to the condensor & the drier? Mine was incomplete when I got it so I don't know how/what it's supposed to look like

L8R - Joe

Jwill41 · 08-08-2005, 11:24 PM

Thanks, I will look for that next chance I get. Where can I buy a new resistor? Can I give that number to dealer they will know what it is?

I will get more pics for you tomorow evening.

bagged91 · 08-09-2005, 02:43 PM

From what I remember, I think it is the same as the blower resistor for the regular A/C systems. Try one of the board vendors, they will be able to let you know if it is the correct P/N...

Make sure you get one for a/c, not heat. The heat only one is different(pn# 3929052)

Jwill41 · 08-09-2005, 06:01 PM

I deleted the pics above by mistake. I took some more this afternoon and they can be seen at http://www.picturetrail.com/gallery/...1110&members=1. Just let me know if there is anything partcular that you need to see and I will get more pics.

08-08-2005, 09:25 AM	#1
fade94 Registered User Join Date: Mar 2005 Location: Melissa, TX Posts: 799	DEALER installed A/C question. I will be getting the under dash unit soon. However, I will be needing the under hood aspect and possibly the hoses. I have checked a couple of catalogs but have not found anything for this option. Does someone have pics of the underhood setup for the dealer installed air? Looking for what brackets and compressor to look for. I assume I can use the same drier and condensor that is used for the factory A/C. Truck has a 350 in it with the new style alt on the PASS side. Need to know what I need to keep alt where it's at. I can move it to DR side if I need to (I have the brackets). __________________ 68 short bed driver (71 clip on it now, swapping to 68 when weather cooperates) 67 short step project (will get SWB from the 68) 67 Camaro, #'s matching (my wife's) 03 Dodge Ram 2500 4x4 diesel 5 speed 4.10 rear Last edited by fade94; 08-08-2005 at 09:58 AM.

08-08-2005, 09:59 AM	#3
fade94 Registered User Join Date: Mar 2005 Location: Melissa, TX Posts: 799	Updated my post with 350 and other details. __________________ 68 short bed driver (71 clip on it now, swapping to 68 when weather cooperates) 67 short step project (will get SWB from the 68) 67 Camaro, #'s matching (my wife's) 03 Dodge Ram 2500 4x4 diesel 5 speed 4.10 rear

08-08-2005, 10:28 AM	#4
Jwill41 Registered User Join Date: Aug 2002 Location: Farmers Branch, Tx Posts: 1,009	I have a 67 with 283 and dealer installed under dash ac. I can get pics this evening if you want. __________________ http://www.picturetrail.com/jwill41 67 1/2 ton GMC short step side 68 1/2 ton Chevy long fleet side 72 1/2 ton Chevy Suburban 99 1/2 ton Chevy Suburban founder (and only member) of the primer/clearcoat club

08-08-2005, 10:52 AM	#5
fade94 Registered User Join Date: Mar 2005 Location: Melissa, TX Posts: 799	Pics would be great. I can't find parts if I don't know what they look like.. __________________ 68 short bed driver (71 clip on it now, swapping to 68 when weather cooperates) 67 short step project (will get SWB from the 68) 67 Camaro, #'s matching (my wife's) 03 Dodge Ram 2500 4x4 diesel 5 speed 4.10 rear

08-08-2005, 05:38 PM	#6
bagged91 Out draggin' Join Date: Jan 2004 Location: Pitman,NJ Posts: 1,574	Is this the system you are refering to: http://67-72chevytrucks.com/vboard/s....php3?t=164937 I am looking for the same thing. If you have everything under the dash, to the firewall, and a stock condensor & drier, then you are about where I am. For the A/C lines, you will need either the stock ones from the aftermarket kit or lines from a pre 71' Burb with the tunnel roof air system(see picture below, I got artistic for you ). You will also need barbed fittings for the rubber lines to attach to the condensor & drier. The lines are different than those on a pickup truck with the factory installed 4 seasons system as the pickup truck lines have the low pressure valve on the POA valve, whereas the pre 71 Burb & underdash systems didn't use a POA valve... 72' Burb with A/C is same hose as pickup... Once you have the lines figured out, the compressor & brackets & pullies are the same as the factory A/C unit(if you are using the system pictured in the link above). If you are using a different system, the operating principles are still the same so the above mentioned parts should work fine If you have a copy of the Factory Service Manual, they discuss the service procedures for this system in there under the "GM-Chevrolet Air Conditioning System". L8R - Joe Attached Images __________________ 91 GMC Xcab LB-Bags/bd/caddy clip SOLD 72 C10 Cheyenne Super LWB SOLD 92 GMC K1500 Burb 72 C10 Burb (ex. Cheesewagon)SOLD 72 C20 Burb parts truck 71 C10 Burb "project" Last edited by bagged91; 08-08-2005 at 05:45 PM.

08-08-2005, 09:47 AM	#2
tnblazerk5 User #12137 Join Date: Apr 2004 Location: kingsport,upper east tenn Posts: 11,598	is the truck a v8 or a 6 cyd ? and if your not looking or the exact parts just about any ac pump and other stuff will work ,so i have been told by my local ac buddy , i have got 2 trucks i am going to put uderdash units in and he told me to start collecting parts well i got the under dash parts and i got all the stuff to instale one of the ac in one truck still lookin for the other stuff for the other truck i also have got a 70 gmc jimmy with dealer instaled ac i can get pics from, its a 6 cyd with old stile ac pump and its going to get changed to a differant pump if i keep the 6banger in it

08-08-2005, 05:45 PM	#7
john member #16 Join Date: Dec 1999 Location: Yuba City Ca. Posts: 3,618	Old Air Products sell reproduction condensers and lines. You can get brackets for long or short pump and left or right side to use Sanden compresser. Heres a pic of their mount. You can buy parts or a kit. It replaces the original heater unit with heat/A/C. Or you can go the auto wrecker and buy parts to use the factory type A-6 compresser on the drivers side which is what I did on mine. The long pump parts are plentiful in the yards. Hope this helps some. John http://www.oldairproducts.com/shop/index.php Attached Images __________________ john http://67-72chevytrucks.com/vboard/showgroups.php board vendors http://www.flickr.com/photos/1745471...7602865984234/

08-08-2005, 06:16 PM	#8
Jwill41 Registered User Join Date: Aug 2002 Location: Farmers Branch, Tx Posts: 1,009	This is the one in my 67. __________________ http://www.picturetrail.com/jwill41 67 1/2 ton GMC short step side 68 1/2 ton Chevy long fleet side 72 1/2 ton Chevy Suburban 99 1/2 ton Chevy Suburban founder (and only member) of the primer/clearcoat club Last edited by Jwill41; 08-08-2005 at 06:17 PM.

08-08-2005, 07:33 PM	#9
Jwill41 Registered User Join Date: Aug 2002 Location: Farmers Branch, Tx Posts: 1,009	I dont want to intrude on your thread but I have a quick question while we are on the subject. I added freon to mine yesterday and it is working great except, only the high speed works on the fan. Do I need a new switch or something like that ? Any other ideas? __________________ http://www.picturetrail.com/jwill41 67 1/2 ton GMC short step side 68 1/2 ton Chevy long fleet side 72 1/2 ton Chevy Suburban 99 1/2 ton Chevy Suburban founder (and only member) of the primer/clearcoat club

08-08-2005, 10:24 PM	#10
bagged91 Out draggin' Join Date: Jan 2004 Location: Pitman,NJ Posts: 1,574	Your fan resistor went bad. It is located above the blower motor assembly. You should be able to get to it by removing the glove box liner instead of dropping the unit and losing your charge... It is held on with 2 3/16" screws... See attached pics of mine... The part # on the blower resistor made by INDAK is: PN# 3929051. An interesting note, yours is almost identical to mine but I did notice that they changed the area where the switches are. Yours looks like the City/Highway & Lo/Med/Hi are molded directly into the plastic whereas mine has a seperate plastic bezel with an aluminum trim plate with the lettering printed on it. Since yours is complete & working, would you be able to get a couple of pics of how the hoses connect to the condensor & the drier? Mine was incomplete when I got it so I don't know how/what it's supposed to look like L8R - Joe Attached Images __________________ 91 GMC Xcab LB-Bags/bd/caddy clip SOLD 72 C10 Cheyenne Super LWB SOLD 92 GMC K1500 Burb 72 C10 Burb (ex. Cheesewagon)SOLD 72 C20 Burb parts truck 71 C10 Burb "project"

08-08-2005, 11:24 PM	#11
Jwill41 Registered User Join Date: Aug 2002 Location: Farmers Branch, Tx Posts: 1,009	Thanks, I will look for that next chance I get. Where can I buy a new resistor? Can I give that number to dealer they will know what it is? I will get more pics for you tomorow evening. __________________ http://www.picturetrail.com/jwill41 67 1/2 ton GMC short step side 68 1/2 ton Chevy long fleet side 72 1/2 ton Chevy Suburban 99 1/2 ton Chevy Suburban founder (and only member) of the primer/clearcoat club

08-09-2005, 02:43 PM	#12
bagged91 Out draggin' Join Date: Jan 2004 Location: Pitman,NJ Posts: 1,574	From what I remember, I think it is the same as the blower resistor for the regular A/C systems. Try one of the board vendors, they will be able to let you know if it is the correct P/N... Make sure you get one for a/c, not heat. The heat only one is different(pn# 3929052) __________________ 91 GMC Xcab LB-Bags/bd/caddy clip SOLD 72 C10 Cheyenne Super LWB SOLD 92 GMC K1500 Burb 72 C10 Burb (ex. Cheesewagon)SOLD 72 C20 Burb parts truck 71 C10 Burb "project" Last edited by bagged91; 08-09-2005 at 02:46 PM.

08-09-2005, 06:01 PM	#13
Jwill41 Registered User Join Date: Aug 2002 Location: Farmers Branch, Tx Posts: 1,009	I deleted the pics above by mistake. I took some more this afternoon and they can be seen at http://www.picturetrail.com/gallery/...1110&members=1. Just let me know if there is anything partcular that you need to see and I will get more pics. __________________ http://www.picturetrail.com/jwill41 67 1/2 ton GMC short step side 68 1/2 ton Chevy long fleet side 72 1/2 ton Chevy Suburban 99 1/2 ton Chevy Suburban founder (and only member) of the primer/clearcoat club



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