97 Grand Cherokee Air Cond. Problem

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chuckb43@fuse.net - 25 Mar 2007 15:03 GMT

Seems like every spring I have to recharge the air condt system. I'm
wondering if a can of the dye would help in spotting the leak. The
evaporator was replaced by Jeep two years ago. Is a leak usuall du to
bad O rings in the compressor?

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philthy - 25 Mar 2007 15:11 GMT

take it elsewhere if you want it fixed correctly

> Seems like every spring I have to recharge the air condt system. I'm
> wondering if a can of the dye would help in spotting the leak. The
> evaporator was replaced by Jeep two years ago. Is a leak usuall du to
> bad O rings in the compressor?

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Dick - 25 Mar 2007 15:17 GMT

>Seems like every spring I have to recharge the air condt system. I'm
>wondering if a can of the dye would help in spotting the leak. The
>evaporator was replaced by Jeep two years ago. Is a leak usuall du to
>bad O rings in the compressor?

That's where they finally found it in ours. Took an A/C specialty
shop to find the problem. The dealer couldn't. It wasn't an obvious
leak. Replaced all the o-rings and haven't had a problem since.

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Earle Horton - 25 Mar 2007 15:51 GMT

> >Seems like every spring I have to recharge the air condt system.
> >I'm wondering if a can of the dye would help in spotting the leak.
[quoted text clipped - 4 lines]
> shop to find the problem. The dealer couldn't. It wasn't an obvious
> leak. Replaced all the o-rings and haven't had a problem since.

I'll second that bad O-rings. Many of these guys seems to have a "one leak
at a time" mentality. All the O-rings couldn't possibly go bad at once,
being the exact same age and all. They fix the first leak they find, and
call it good.

Earle

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L.W. (Bill) Hughes III - 26 Mar 2007 00:08 GMT

Me Three.
God Bless America, Bill 0|||||||0
mailto:LWHughes3rd@aol.com http://www.billhughes.com/

> I'll second that bad O-rings. Many of these guys seems to have a "one leak
> at a time" mentality. All the O-rings couldn't possibly go bad at once,
> being the exact same age and all. They fix the first leak they find, and
> call it good.
>
> Earle

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reboot - 26 Mar 2007 03:08 GMT

>Seems like every spring I have to recharge the air condt system. I'm
>wondering if a can of the dye would help in spotting the leak. The
>evaporator was replaced by Jeep two years ago. Is a leak usuall du to
>bad O rings in the compressor?

me four ... the ZJ used 'spring-lock' connectors like most Fords do,
easy assembly in the factory, good initial quality but long term
reliability isn't very good. replace ''em all.

the ZJ is a CCOT system, if it runs long at low charge you can burn
up your compressor clutch (from rapid cycling) or fail the shaft seal
because with low refrigerant flow things run much hotter than normal
and the oil circulation is poor.

if after replacing the o-rings you still run low next season then its
compressor time.

reboot

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