A/C rebuild

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drakon543

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ok guys here is one of my last big items to have my Tahoe fully refreshed with 0 issues. so yes im fixing the stupid a/c on request of my wife i dont care about it myself. ill be buying all the parts from rockauto also. when i bought my truck the pipes to the compressor were disconnected so obviously needed work. im going to be buying a new compressor, dryer accumulator tank, and condenser and the pipes on the top of the compressor and from the condenser. probably the switches and sensors too. ive already replaced the HVAC controls inside. so i see ac delco, uac, gpd, four seasons, Delphi, denso options any brand opinions out there. i also know little about the a/c system besides after i replace the parts it will need to be professionally purged and refilled. lastly what is the orifice tube should i be concerned with it or should i get the updated one that has some automatic adjustment features.
 

Squirrelsmith

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well my compressor shit out on me today so I'm in there with you. Seems like once a month something need to be replaced on mine :bawl:
 
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drakon543

drakon543

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besides some of the stuff my wife wanted changed on the Tahoe ive been going after anything questionable or stuff that usually fails
 

Lancem

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You need to get the evaporator either flushed or replaced before you put on all the new parts, it is likely that the old compressor filled the system with crap when it went, if you don't the crap will just tear up/contaminate your new stuff. As far as brands I've gone with whatever is least expensive, everything besides the compressor is just a hard part, not much to go wrong with them. In my experience often a new orifice tube comes with the new condencer.
 
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drakon543

drakon543

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extra 30 bucks not a problem its on the list for replacement
 

Lancem

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extra 30 bucks not a problem its on the list for replacement

Except you need to probably remove the whole damn dash to get to it. Look into it before you just decide to replace it. I did one a while back on a 92 and it was a day job.
 
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drakon543

drakon543

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lol almost everything i do i turn into a day job somehow or another
 

Squirrelsmith

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a day wow you guys are good, I can't do anything in less than a week haha! Thank god I have a toyota corolla that nothing is EVER wrong with. Probably should have just stuck with it this tahoe is a money pit
 
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drakon543

drakon543

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a day wow you guys are good, I can't do anything in less than a week haha! Thank god I have a toyota corolla that nothing is EVER wrong with. Probably should have just stuck with it this tahoe is a money pit
ya i used to have an 07 pontiac g6 i drove to 189k i only had to replace the battery and a caliper. i was stupid and sold that one.
 

Tbruz

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drakon543,
I have a brand new ACDelco condensor for the OBS style tahoe that I cannot use.
Will sell to you for $50 and you pay shipping costs from NH.
Thanks
Tbruz
 

Fourpillars

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Yep, u will need to replace the evap. While you are there might as well do the heater core too. Its at least a days job. Took me about a week working at it 2-3 hours every other day. It worth it. Don't forget the rear stuff too. Did mine two years ago and works like new.
 
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drakon543

drakon543

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Yep, u will need to replace the evap. While you are there might as well do the heater core too. Its at least a days job. Took me about a week working at it 2-3 hours every other day. It worth it. Don't forget the rear stuff too. Did mine two years ago and works like new.
mines front only so bonus its a bit cheaper to fix some of the hvac stuff
 

muncie21

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When the AC compressor went out in my '03 Suburban, I purged the system and replaced everything myself. Not too bad of a job if you take your time and make sure everything in the system is clean/flushed of debris. Doesn't take much to clog up the orifice tube, which will require you to evacuate the system and start all over. Get all new seals, after you purge the system, pull a vacuum and ensure it holds for a period of time before recharging. Since the system is completely empty now, ensure you are refilling with the proper amounts of oil and refrigerant...i.e. weigh them, don't count on the box measurements.

If the A/C lines have been disconnected and exposed to the environment, you'll need to spend more time flushing the system to ensure it's completely free of debris, dirt, etc.

I believe when it was all said/done, I spent around $400-500 on parts and supplies (refrigerant/oil) and took about 2-3 days (part of which was holding the system under vacuum to ensure there were no leaks) which was a pretty good deal, compared to the $1500 I was quoted.
 
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drakon543

drakon543

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ya as far as purging vacuum and recharge its out of my hands at that point. ill either have my neighbor handle it he has all the stuff to professionally do it. or it will go to the only shop in the area i trust.

lol the page says you creepin tbruz im gonna respond to your email today.
 

Squirrelsmith

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When the AC compressor went out in my '03 Suburban, I purged the system and replaced everything myself. Not too bad of a job if you take your time and make sure everything in the system is clean/flushed of debris. Doesn't take much to clog up the orifice tube, which will require you to evacuate the system and start all over. Get all new seals, after you purge the system, pull a vacuum and ensure it holds for a period of time before recharging. Since the system is completely empty now, ensure you are refilling with the proper amounts of oil and refrigerant...i.e. weigh them, don't count on the box measurements.

If the A/C lines have been disconnected and exposed to the environment, you'll need to spend more time flushing the system to ensure it's completely free of debris, dirt, etc.

I believe when it was all said/done, I spent around $400-500 on parts and supplies (refrigerant/oil) and took about 2-3 days (part of which was holding the system under vacuum to ensure there were no leaks) which was a pretty good deal, compared to the $1500 I was quoted.
nice work this is exactly what i'm getting into. my friend has a 1997 toyota land rover we are going to park em next to each other and do both at once.
 

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