The 1947 - Present Chevrolet & GMC Truck Message Board Network

The 1947 - Present Chevrolet & GMC Truck Message Board Network (https://67-72chevytrucks.com/vboard/index.php)
-   The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=4)
-   -   couple questions... (https://67-72chevytrucks.com/vboard/showthread.php?t=415358)

joe231 08-06-2010 06:11 PM

couple questions...
 
First, any A/C experts around here?
I'm having some issues with the A/C in my crew
I recently replaced the Condenser, Orifice tube, and accumulator.
Then within a couple weeks my compressor went out (I'm pretty sure it was due to me not adding enough oil), it quit building pressure on the high side.
So I replaced the compressor, pulled a deep vacuum and recharged it.
Throughout the whole process the A/C has been lack-luster at best. Now my pressures are right where they should be and the inlet to the evaporator is ice cold. My accumulator is sweating like crazy. I have tried adding and subtracting refrigerant. My vent temps are only slightly cool. I have checked the blend doors and all that is working correctly. Everything I have read online is pointing towards moisture in the system. How can I tell if my accumulator is bad (I realize it is cheap to replace, But I really hate throwing money at a problem with out condemning parts). I'm also wondering about the evaporator. I'm going to get a laser thermometer in a few minutes so maybe I can pin-point the problem.
I'm open to suggestions.....

second issue,
I need the little bushing that the spring holds against the frame side bracket on the stock auto transmission shift assembly. Mine is completely missing. So far i have been unsuccessful at finding any online. Any one know a source for these? Part number? How about a picture even? Maybe I can just make one....

Thanks!!

baclay9 08-06-2010 06:33 PM

Re: couple questions...
 
I think I am needing the same bushings Joe so if you find a source please let me know.

joe231 08-06-2010 06:35 PM

Re: couple questions...
 
will do Brandon!

Chionos GMs 08-06-2010 11:30 PM

Re: couple questions...
 
I got a suggestion bout your a/c. Me and my father think it might be your orifice tube again. Just a suggestion

joe231 08-06-2010 11:36 PM

Re: couple questions...
 
Cool
Thanks for the suggestion. Tomorrow I'm gonna pull the orifice tube and check it out and flush my evaporator while I have it apart. I'm also leaning towards replacing the accumulator......

STOCKISH 08-06-2010 11:53 PM

Re: couple questions...
 
Have you tried to crimp off the hoses going to the heater core yet? Pressures around 30-35 low side and 190-250 high side? Make sure the slider for the temp control is moving the lever to full cold. You can see the lever right behind the glove box.

cableguy0 08-06-2010 11:54 PM

Re: couple questions...
 
If the compressor blew up you need to replace the accumulator and orifice tube as well as flush the rest of the system. Stuff scatters everywhere and its very likely the orifice tube is clogged as well as accumulator. Just remember any trash in the system can makes its way back into the compressor and turn into and endless vicious cycle

WigglesTheHoly 08-06-2010 11:57 PM

Re: couple questions...
 
I don't mean to hijack this thread or anything but where is the cheapest everyone has found a compressor mine is out on the truck I just bought as well.

Chionos GMs 08-07-2010 12:46 AM

Re: couple questions...
 
Let us know how it goes

joe231 08-07-2010 10:10 AM

Re: couple questions...
 
Quote:

Originally Posted by 1972SuperCheyenne (Post 4126609)
Have you tried to crimp off the hoses going to the heater core yet? Pressures around 30-35 low side and 190-250 high side? Make sure the slider for the temp control is moving the lever to full cold. You can see the lever right behind the glove box.

I have not blocked off the heater core, I have been meaning to get a manual shut off valve for it. Pressures right in that range. I haven't physically checked the lever to block off the heater, I will do that. thanks

Quote:

Originally Posted by cableguy0 (Post 4126610)
If the compressor blew up you need to replace the accumulator and orifice tube as well as flush the rest of the system. Stuff scatters everywhere and its very likely the orifice tube is clogged as well as accumulator. Just remember any trash in the system can makes its way back into the compressor and turn into and endless vicious cycle

Gotcha, i looked when I re4placed the compressor and didn't see any trash, But I will go ahead and change them out. Thanks

Quote:

Originally Posted by WigglesTheHoly (Post 4126617)
I don't mean to hijack this thread or anything but where is the cheapest everyone has found a compressor mine is out on the truck I just bought as well.

I got mine from O'reillys, it is a new not reman'ed and it was right around $150. I only bought from them because they had it in stock and I'm impatient

Quote:

Originally Posted by Chionos GMs (Post 4126704)
Let us know how it goes

Will Do!

joe231 08-15-2010 08:05 PM

Re: couple questions...
 
1 Attachment(s)
Chionos, you and your dad were correct as well as cableguy.
my compressor left a mess
Attachment 621996
I flushed and flushed and flushed then flushed some more ;)
replaced the accumulator and orifice tube, then I added oil, pulled a deep vacuum, checked for leak-down, and charged it up with the correct amount of refrigerant.
The family and I took it for a ride to OKC and we were getting @ 51*F center vent temperature on the highway with 100*F outside. It is nice to have a working A/C in my old truck FINALLY!!:metal:
Thanks for all the help guys

cableguy0 08-15-2010 08:16 PM

Re: couple questions...
 
Good deal man. I figured your orifice tube would look exactly like that. Anytime a compressor goes orifice tube and drier are mandatory replacement aside from flushing everything else.

joe231 08-15-2010 08:48 PM

Re: couple questions...
 
Thanks again!
out of curiosity, what do you guys use to flush?
I bought some flush in a can that has d-Limonene as the solvent. It seemed kinda oily and hard to get all of it out.

Chionos GMs 08-16-2010 03:25 AM

Re: couple questions...
 
Good to hear. I get to fix air conditioning in a 88 Chevy he had the same problem. Hope you get many hassle free miles

primrrd 08-17-2010 11:14 PM

Re: couple questions...
 
careful on the 4 seasons recon compressors from orielly..
i crapped out the 3rd r4 compressor in 2 years this summer.
GRRR
I am getting brackets and a sanden compressor to end run the r4 and hopefully cold air, too.(:

joe231 08-17-2010 11:24 PM

Re: couple questions...
 
You got the re-manned?
I bought the new one....I really don't trust the re-manned

Chionos GMs 08-18-2010 12:29 AM

Re: couple questions...
 
Whats wrong with reman?? We have had no problems with any of our remans? Only things I dont trust reman are alternators, and starters.. Never had luck with em.

Rodms 08-18-2010 01:21 AM

Re: couple questions...
 
Should be under warranty, take it back all of it.

joe231 08-18-2010 07:10 AM

Re: couple questions...
 
I know a few people that haven't had very good luck with the re-man'd compressors. I think the new one was only $30 more.
warranty is nice but it doesn't cover refrigerant or labor, so if it craps out under warranty more than once it gets expensive and frustrating.

Chionos GMs 08-18-2010 12:51 PM

Re: couple questions...
 
I guess the only reason we use a reman because we have connections to a guy who remans for a good price. I dont like buying any remans from a parts house. Specially when it says Remanufactured in China


All times are GMT -4. The time now is 09:29 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright 1997-2025 67-72chevytrucks.com