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Old 01-29-2008, 05:40 AM   #1
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Air Conditioning

Hi,

It's pretty hot where I live and it seems the norm for the AC to pack-up on one of our cars every 2 years or so. Amazingly every time it's something very expensive like the compressor that needs changing!

Anyhow the TJ is blowing warm air and today I thought I was talking to an honest guy when he said they would fill it with some dye + coolant, the A/C would work again for a while and then after a week, they would see there the problem was.

However after that he told me it would cost around 800 bucks to change a clutch....mmmnnn

So even with my limited skills I reckon I can change my own clutch for a whole lot less. At the same time I thought I'd take a crack at the A/C now.

Would be grateful for any pointers - the inital advice seems good - can anyone point me towards the right product? Or is this really something a professional should be doing wrt the refrigerant being dangerous?

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Old 01-29-2008, 09:21 AM   #2
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so your ac just needs to be charged since your system is empty? They have those spray can looking thingys at the autostores. Its not hard and i cant believe if it went in the low pressure for sure but you just put the hose that comes with the bottle in there and you charge it.

as the clutch, I think you will need a lift or something but it will be tough. You will also need clutch centering tool which is cheap. You will also need a torque wrench. Search for a clutch replacement write up.

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Old 01-29-2008, 12:34 PM   #3
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Thanks for the hints. On the cluth, now I see it's second only to an engine replacement, that baby is going to the Garage... I'll just shop around on labour I think!

I'll give the charging a go on the AC but my experience is that once you start doing that you have a leak somewhere.


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so your ac just needs to be charged since your system is empty? They have those spray can looking thingys at the autostores. Its not hard and i cant believe if it went in the low pressure for sure but you just put the hose that comes with the bottle in there and you charge it.

as the clutch, I think you will need a lift or something but it will be tough. You will also need clutch centering tool which is cheap. You will also need a torque wrench. Search for a clutch replacement write up.
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Old 01-29-2008, 12:41 PM   #4
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yeah freon just doesnt evaporate like that theres a leak some where!

sounds like you should have someone do the clutch for you! but thats up to you we dont exactly know your skills
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Old 01-29-2008, 01:00 PM   #5
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Are you talking about the clutch on the compressor? If thats the case just scrounge a compressor from a junkyard or see if you can borrow a puller from Autozone or somthing. Its fairly simple, and then just charge your system with a few cans and a sealer. Also, where are you that your using your AC?
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Old 01-29-2008, 02:15 PM   #6
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Quote:
Originally Posted by Triple88a View Post
so your ac just needs to be charged since your system is empty? They have those spray can looking thingys at the autostores. Its not hard and i cant believe if it went in the low pressure for sure but you just put the hose that comes with the bottle in there and you charge it.

as the clutch, I think you will need a lift or something but it will be tough. You will also need clutch centering tool which is cheap. You will also need a torque wrench. Search for a clutch replacement write up.
I think he's talking about the compressor clutch, which is inside the compressor unit. Like ct-tj said, just get a cheap compressor from the junk yard or off ebay. It's an easy change.

But first question I would ask. When he recharged the system with the leak detector, did it feel cold to you?

You can get a cheap set of A/C R34 gauges at Harbour Frieght. Look in you Jeep service manual for the pressures. I don't know what the readings should be cause I'm at work. But if you overfill with freon, you could damage the compressor. I could be just a relay.
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Old 01-29-2008, 11:22 PM   #7
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eh finding a leak could be quite time consuming unless its right there in your eyes. Gotta pump it up, gotta put the gauge on it and then wait and then foam bubbles or whatever to find the leak. Back in shop class we did that to 1 car.. It was very time consuming and very hard to reach as there wasnt much of space to work there.
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Old 06-01-2008, 11:02 AM   #8
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Does anyone know where the sight glass is on the air conditioning system? The Haynes manual is useless for the I6 engine, they used the 4banger and stuff is in different locations!!

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