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Jeep air conditioner replacement?
My 2002 Jeep Liberty has been blowing hot air this summer. The dealer's shop gave me a quote of $2000 (minimum) to replace the compressor. I'm thinking of doing it myself. I do most of my own maintenance but never touched an AC unit.
I've read some forums talk about "special equipment" yet I don't see what it could involve that can't be found in a typical toolbox. It seems like a fairy straightforward, though time consuming, job.
My understanding is that the compressor and condenser get changed at the same time, does the orifice tube need changed at this time as well?
Am I silly to think that I can tackle this in a day?
4 Answers
- buddy_236Lv 69 years agoFavorite Answer
Replacing the compressor is not a huge deal and it depends on what type of failure it had as to what other components need to be replaced.
If the compressor was knocking/rattling before it failed and locked up; the condenser, filter drier and the compressor need to be replaced and the system needs to be flushed to remove the compressor debris that was circulated.
I have seen just the pulley bearing fail to which it bent the compressor shaft and ruined the front components of the compressor with out distributing debris into the ac system, the compressor was the only needed component because the inside of the system was not black or sooty looking, it looked new.
The most important special tools are the vacuum pump and manifold gauge set, The compressor has a fill plug not found on many systems so you need to drain and measure the amount of oil in the compressor and put the exact amount back into the new (unfilled) compressor (these instructions should come with the new compressor).
Refrigerant by nature is dangerous by nature, if it leaks out near your hands it can freeze them depending on the circumstances.
You can loosen up the compressor line clamp bolts slowly and let it vent slowly unless of course you have access to a recovery recharging station.
Do not charge a system without putting it under a 29" Hg vacuum for at least 10 min first, this will remove the moisture and non-condensable gasses.
- Anonymous9 years ago
U can do this. Not hard at all. U will nees a valve stem remover. Release ur freon by unscrewing the low side line of ur ac (the blue cap). Replace the compressor and dryer. U can also the the orfice tube or expansion valve. Replace all o rings with new replacements and remember to find out what kind and how much pag oil u will need u place in the compressor. Then charge the system with the correct amount, if it goes slow just start the car and cut the ac on cold, it will help draw it in.
Before anything, get a second opinion....
- gee-manLv 79 years ago
No you aren't silly at all,but you really need to consider getting you a haynes or chilton repair manual it would only make sense to and you can also use it later on.Thereis just to much on doing this job to type it out but I will give you a few pointer's, yes you can do this if you are capable of doing mechanic work,First off if I can remember this car doesn't have an orfice tube in it ,it has an expansion valve which needs to be replaced with the compressor,the condensor doesn't ever need to be replaced along with the compressor unless it is damaged or leaking or clogged up.but the dealership just tries to unload it all on ya.But it is pretty much an easy job on that particular vehicle and with the manual you can do it,Once you get it completed you can probably rent a vacuum pump from auto zone ,or just take it to a shop and let them pull a good vacuum on it and recharge it because it definetly has to have that .,,,,,,,,,,
- 9 years ago
Special equpiment have to primary do with evacuate and recharging your system, while it is something you can do yourself there is one thing that you will need to get done at the shop, this has to do with the recharging of the air conditioning, due to you need to have the system put under a vacuum for removing moisture out of the system. And most shops equipment can add oil to the system as well as charge it to the correct amount of freon, my honest advice is to shop around and get it done professionally dealers always charge a lot