Hi,

I have a 1998 face lift Cherokee, and the Air con does nothing, now
it's possible that it needs re-gassing, but there seems to be no change

in engine noise when I turn the dial to one of the A/C settings, and I
would at least expect the condenser load to show as a blip in RPM or
something, can I easily check to see if the condenser is kicking in
before I go down to route of getting it re-gassed?

Thanks

 

bryan did pass the time by typing:
> Hi,
>
> I have a 1998 face lift Cherokee, and the Air con does nothing, now
> it's possible that it needs re-gassing, but there seems to be no change
>
> in engine noise when I turn the dial to one of the A/C settings, and I
> would at least expect the condenser load to show as a blip in RPM or
> something, can I easily check to see if the condenser is kicking in
> before I go down to route of getting it re-gassed?

You should hear the comressor kick on.
If it doesn't you can start the engine, turn on the AC, then
temporarily bypass the low side switch. If the comressor turns
on then your system is low.

The low side switch is on the accumulator.
http://revbeergoggles.com/Fixes/sens...essure-low.jpg
You just disconnect the harness and jumper the two connections.

Do not bypass the switch this for more than a few seconds
unless your filling the system. WHen your filling an empty
system you bypass the switch so the compressor will suck in the
refrigerant.

--
DougW

 

bryan did pass the time by typing:
> Hi,
>
> I have a 1998 face lift Cherokee, and the Air con does nothing, now
> it's possible that it needs re-gassing, but there seems to be no change
>
> in engine noise when I turn the dial to one of the A/C settings, and I
> would at least expect the condenser load to show as a blip in RPM or
> something, can I easily check to see if the condenser is kicking in
> before I go down to route of getting it re-gassed?

You should hear the comressor kick on.
If it doesn't you can start the engine, turn on the AC, then
temporarily bypass the low side switch. If the comressor turns
on then your system is low.

The low side switch is on the accumulator.
http://revbeergoggles.com/Fixes/sens...essure-low.jpg
You just disconnect the harness and jumper the two connections.

Do not bypass the switch this for more than a few seconds
unless your filling the system. WHen your filling an empty
system you bypass the switch so the compressor will suck in the
refrigerant.

--
DougW

 

bryan did pass the time by typing:
> Hi,
>
> I have a 1998 face lift Cherokee, and the Air con does nothing, now
> it's possible that it needs re-gassing, but there seems to be no change
>
> in engine noise when I turn the dial to one of the A/C settings, and I
> would at least expect the condenser load to show as a blip in RPM or
> something, can I easily check to see if the condenser is kicking in
> before I go down to route of getting it re-gassed?

You should hear the comressor kick on.
If it doesn't you can start the engine, turn on the AC, then
temporarily bypass the low side switch. If the comressor turns
on then your system is low.

The low side switch is on the accumulator.
http://revbeergoggles.com/Fixes/sens...essure-low.jpg
You just disconnect the harness and jumper the two connections.

Do not bypass the switch this for more than a few seconds
unless your filling the system. WHen your filling an empty
system you bypass the switch so the compressor will suck in the
refrigerant.

--
DougW

 

Doug,

Thanks I did this, and the compressor did kick it, so did the fan, is
this normal?
I tried topping up the system, and the compressor kicked in & out while
doing so, but now it stays off. I only used a top up kit so might not
have had enough gas??

Thanks
Bryan

 

Doug,

Thanks I did this, and the compressor did kick it, so did the fan, is
this normal?
I tried topping up the system, and the compressor kicked in & out while
doing so, but now it stays off. I only used a top up kit so might not
have had enough gas??

Thanks
Bryan

 

Doug,

Thanks I did this, and the compressor did kick it, so did the fan, is
this normal?
I tried topping up the system, and the compressor kicked in & out while
doing so, but now it stays off. I only used a top up kit so might not
have had enough gas??

Thanks
Bryan

 

So you have a Leak.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

bryan@fircroft.net wrote:
>
> Doug,
>
> Thanks I did this, and the compressor did kick it, so did the fan, is
> this normal?
> I tried topping up the system, and the compressor kicked in & out while
> doing so, but now it stays off. I only used a top up kit so might not
> have had enough gas??
>
> Thanks
> Bryan

 

So you have a Leak.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

bryan@fircroft.net wrote:
>
> Doug,
>
> Thanks I did this, and the compressor did kick it, so did the fan, is
> this normal?
> I tried topping up the system, and the compressor kicked in & out while
> doing so, but now it stays off. I only used a top up kit so might not
> have had enough gas??
>
> Thanks
> Bryan

 

So you have a Leak.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

bryan@fircroft.net wrote:
>
> Doug,
>
> Thanks I did this, and the compressor did kick it, so did the fan, is
> this normal?
> I tried topping up the system, and the compressor kicked in & out while
> doing so, but now it stays off. I only used a top up kit so might not
> have had enough gas??
>
> Thanks
> Bryan