My A/C quit putting out Cold Air in my 1997 GC. Seems to physically
work, but just pumps out warm air rather then cold. My auto shop said
it had a bad Evaporator coil. Because it would take 6 1/2 hours, it
is going to end up costing me $800 ($455 in labor). I've read about
an extenedend 70,000 mile warrenty, but I'm at 85,000 miles.

After talking with friends at work, they suggested at least having it
"recharged" first. Might tell me if it is a leak, or completely
broke. But, wouldn't a leak even cause me to replace it? Will this
cost maybe $50-$70? Would this be a good thing to do first?

Also, can't do the $800 right now, and am going on vactation to Silver
Lake Sand Dunes next week, so would REALLY like to have any bit of
cold air I can get.

 

If you can't do the $800, then prepare yourself for a warm trip, or go with
a friend and use his car.

You can buy a can of R134 and a fitting to squirt it in for about $25 bucks.
Follow the directions on the can. If the evaporator has a leak, you will
know. If there is a leak anywhere, you will probably know. The R134 contains
oil, so there should be an unexpected oil stain on a fitting somewhere.

If there is a leak, then the pressure in the system should drop to the point
that the Low Pressure switch kicks in to stop the compressor from beating
itself up. If you are getting warm ari out of the vents, then the compressor
ought not be working. It may engage momentarily when the system is first
turned on, but it should not cycle on and off on a regular basis. If it is
cycling, then you do not have a leak because the Low Pressure switch is
allowing the compressor to work.



"hummels" <hummels@tce.com> wrote in message
news:97152248.0307090809.16174cd4@posting.google.c om...
> My A/C quit putting out Cold Air in my 1997 GC. Seems to physically
> work, but just pumps out warm air rather then cold. My auto shop said
> it had a bad Evaporator coil. Because it would take 6 1/2 hours, it
> is going to end up costing me $800 ($455 in labor). I've read about
> an extenedend 70,000 mile warrenty, but I'm at 85,000 miles.
>
> After talking with friends at work, they suggested at least having it
> "recharged" first. Might tell me if it is a leak, or completely
> broke. But, wouldn't a leak even cause me to replace it? Will this
> cost maybe $50-$70? Would this be a good thing to do first?
>
> Also, can't do the $800 right now, and am going on vactation to Silver
> Lake Sand Dunes next week, so would REALLY like to have any bit of
> cold air I can get.

 

I would put a vacuum on it for a couple of hours, or so, before putting any
more freon into it. If it won't hold a vacuum - you have a leak.

--
Carlo F. Serusa, Jr. RPh
carlo.jr@comcast.net
'98 Sahara TJ - '89 YJ - '79 Scout II
O|||||||O
'92 Explorer '65 Mustang


"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:3F0C939E.274303C1@***.net...
> Your Cherokee model had a problem with leaking evaporators:
> http://alldata.com/TSB/04/970418CY.html But, of course it's too late to
> have Daimler eat any of it. I would consider it a deal if you could get
> it replaced for eight hundred. Earle, here suggested a R-134 stop leak
> for another poster:
> http://jcwhitney.com/product.jhtml?CATID=475258&BQ=jcw2 might be worth a
> try.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> hummels wrote:
> >
> > My A/C quit putting out Cold Air in my 1997 GC. Seems to physically
> > work, but just pumps out warm air rather then cold. My auto shop said
> > it had a bad Evaporator coil. Because it would take 6 1/2 hours, it
> > is going to end up costing me $800 ($455 in labor). I've read about
> > an extenedend 70,000 mile warrenty, but I'm at 85,000 miles.
> >
> > After talking with friends at work, they suggested at least having it
> > "recharged" first. Might tell me if it is a leak, or completely
> > broke. But, wouldn't a leak even cause me to replace it? Will this
> > cost maybe $50-$70? Would this be a good thing to do first?
> >
> > Also, can't do the $800 right now, and am going on vactation to Silver
> > Lake Sand Dunes next week, so would REALLY like to have any bit of
> > cold air I can get.

 

Carlo Jr. wrote:
> I would put a vacuum on it for a couple of hours, or so, before putting any
> more freon into it. If it won't hold a vacuum - you have a leak.
>
This is true but he wants it to work for a week while he is on vacation.
A can or two of refrigerant might do that. Add in the "stop leak and
detector" below and he might actually make it through the vacation!

http://jcwhitney.com/product.jhtml?CATID=475258&BQ=jcw2

(I have used this stuff with some success. I can't vouch for its
effectiveness as a stop leak, but it found my leak. In appearance, it's
just a red colored oil. If the leak is in the evaporator though, the
detector will just leak out with the drain water and it might be hard to
spot it.)

Earle

 

Oh My God - All that freon into the open air - there will be a hole in the
ozone layer & everyone in the whole world will fry to
death................not

--
Carlo F. Serusa, Jr. RPh
carlo.jr@comcast.net
'98 Sahara TJ - '89 YJ - '79 Scout II
O|||||||O
'92 Explorer '65 Mustang


"Earle Horton" <enfermero_diabolico@registerednurses.com> wrote in message
news:beiqio$5dta6$1@ID-147790.news.dfncis.de...
> Carlo Jr. wrote:
> > I would put a vacuum on it for a couple of hours, or so, before putting
any
> > more freon into it. If it won't hold a vacuum - you have a leak.
> >
> This is true but he wants it to work for a week while he is on vacation.
> A can or two of refrigerant might do that. Add in the "stop leak and
> detector" below and he might actually make it through the vacation!
>
> http://jcwhitney.com/product.jhtml?CATID=475258&BQ=jcw2
>
> (I have used this stuff with some success. I can't vouch for its
> effectiveness as a stop leak, but it found my leak. In appearance, it's
> just a red colored oil. If the leak is in the evaporator though, the
> detector will just leak out with the drain water and it might be hard to
> spot it.)
>
> Earle
>

 

you need to carry out a pressure test with oxygen free nitrogen, at about
250 psi

--
Paul O'Shea
"Carlo Jr." <carlo.jr@comcast.net> wrote in message
news:pO7Pa.19504$OZ2.3158@rwcrnsc54...
> Oh My God - All that freon into the open air - there will be a hole in the
> ozone layer & everyone in the whole world will fry to
> death................not
>
> --
> Carlo F. Serusa, Jr. RPh
> carlo.jr@comcast.net
> '98 Sahara TJ - '89 YJ - '79 Scout II
> O|||||||O
> '92 Explorer '65 Mustang
>
>
> "Earle Horton" <enfermero_diabolico@registerednurses.com> wrote in message
> news:beiqio$5dta6$1@ID-147790.news.dfncis.de...
> > Carlo Jr. wrote:
> > > I would put a vacuum on it for a couple of hours, or so, before
putting
> any
> > > more freon into it. If it won't hold a vacuum - you have a leak.
> > >
> > This is true but he wants it to work for a week while he is on vacation.
> > A can or two of refrigerant might do that. Add in the "stop leak and
> > detector" below and he might actually make it through the vacation!
> >
> > http://jcwhitney.com/product.jhtml?CATID=475258&BQ=jcw2
> >
> > (I have used this stuff with some success. I can't vouch for its
> > effectiveness as a stop leak, but it found my leak. In appearance, it's
> > just a red colored oil. If the leak is in the evaporator though, the
> > detector will just leak out with the drain water and it might be hard to
> > spot it.)
> >
> > Earle
> >
>
>

 

Hi Carlo,
That's why we switched to the less efficient R-134, it doesn't
float up to destroy our ozone layer. Anyone ever think of pumping the
ozone in Los Angels up there? Mean, while I'm freezing to the death here
in Vista, California, waiting for this so called green house warming to
at least get as warm as Summers pasted.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

"Carlo Jr." wrote:
>
> Oh My God - All that freon into the open air - there will be a hole in the
> ozone layer & everyone in the whole world will fry to
> death................not
>
> --
> Carlo F. Serusa, Jr. RPh
> carlo.jr@comcast.net
> '98 Sahara TJ - '89 YJ - '79 Scout II
> O|||||||O
> '92 Explorer '65 Mustang

 

Calm down. It's R134a, which doesn't have chlorine in it and therefore
is safe for the ozone. It is however, a global warming gas...

Earle

Carlo Jr. wrote:
> Oh My God - All that freon into the open air - there will be a hole in the
> ozone layer & everyone in the whole world will fry to
> death................not
>

 

I thought R-134 just wasn't as harmful - only better

well - talk about the ozone layer................................... all
metered dose inhalers have to pass the "clean air act" by this year
sometime. I think I saw that it is the end of this month somewhere. Serevent
& Nasacort have been taken off of the market so far. As if asthmatics don't
have enough to worry about - now they have to be concerned about blowing a
hole in the ozone layer every time they take a puff or two (& then the
stress precipitates another attack!)

--
Carlo F. Serusa, Jr. RPh
carlo.jr@comcast.net
'98 Sahara TJ - '89 YJ - '79 Scout II
O|||||||O
'92 Explorer '65 Mustang


"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:3F0D1092.8E8A2725@***.net...
> Hi Carlo,
> That's why we switched to the less efficient R-134, it doesn't
> float up to destroy our ozone layer. Anyone ever think of pumping the
> ozone in Los Angels up there? Mean, while I'm freezing to the death here
> in Vista, California, waiting for this so called green house warming to
> at least get as warm as Summers pasted.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> "Carlo Jr." wrote:
> >
> > Oh My God - All that freon into the open air - there will be a hole in
the
> > ozone layer & everyone in the whole world will fry to
> > death................not
> >
> > --
> > Carlo F. Serusa, Jr. RPh
> > carlo.jr@comcast.net
> > '98 Sahara TJ - '89 YJ - '79 Scout II
> > O|||||||O
> > '92 Explorer '65 Mustang