Re: 98 GC AC Malfunctioning
 

"Lon" <lon.stowell@comcast.net> wrote in message
news:jT7Ac.62040$HG.29737@attbi_s53...


> Push [ A/C ] and [ RECIRC ] and hold while rotating the temp dial
> clockwise one click. All segments should light up.
>
> Let go of the buttons and you should see "00".
>
> Read Diags by pushing EITHER the [A/C] or [RECIRC] but not both.
>
> You should see a stick figure at this point. If the display
> stays at "00" there are no fault codes.
>
> If you see 25 or 29, the Auto Temp Control Module is tweaked.


Thanks to everybody for the advice. I did follow instructions to read
Diagnostic Codes and all I get is 00....no numbers. Also, tried running for
10 minutes on lowest cool setting/high fan and the air I'm getting from the
dash vents is cool, not cold, but nowhere even close to 40 degrees.
So, if there are any people here with AC experience, I'd appreciate your
input.

Thanks for all your help!
BEK

Re: 98 GC AC Malfunctioning
 

BEK wrote:

> "Lon" <lon.stowell@comcast.net> wrote in message
> news:jT7Ac.62040$HG.29737@attbi_s53...
>
>
>
>> Push [ A/C ] and [ RECIRC ] and hold while rotating the temp dial
>> clockwise one click. All segments should light up.
>>
>> Let go of the buttons and you should see "00".
>>
>> Read Diags by pushing EITHER the [A/C] or [RECIRC] but not both.
>>
>> You should see a stick figure at this point. If the display
>> stays at "00" there are no fault codes.
>>
>> If you see 25 or 29, the Auto Temp Control Module is tweaked.
>
>
>
> Thanks to everybody for the advice. I did follow instructions to read
> Diagnostic Codes and all I get is 00....no numbers. Also, tried running for
> 10 minutes on lowest cool setting/high fan and the air I'm getting from the
> dash vents is cool, not cold, but nowhere even close to 40 degrees.
> So, if there are any people here with AC experience, I'd appreciate your
> input.
>

Have the system checked for leaks and charge checked.

You might want to take a look at the evaporator, some ZJ's had
problem with them corroding. Also look at the A/C pipe along
the battery for corrosion. Common source of leaks.

Re: 98 GC AC Malfunctioning
 

BEK wrote:

> "Lon" <lon.stowell@comcast.net> wrote in message
> news:jT7Ac.62040$HG.29737@attbi_s53...
>
>
>
>> Push [ A/C ] and [ RECIRC ] and hold while rotating the temp dial
>> clockwise one click. All segments should light up.
>>
>> Let go of the buttons and you should see "00".
>>
>> Read Diags by pushing EITHER the [A/C] or [RECIRC] but not both.
>>
>> You should see a stick figure at this point. If the display
>> stays at "00" there are no fault codes.
>>
>> If you see 25 or 29, the Auto Temp Control Module is tweaked.
>
>
>
> Thanks to everybody for the advice. I did follow instructions to read
> Diagnostic Codes and all I get is 00....no numbers. Also, tried running for
> 10 minutes on lowest cool setting/high fan and the air I'm getting from the
> dash vents is cool, not cold, but nowhere even close to 40 degrees.
> So, if there are any people here with AC experience, I'd appreciate your
> input.
>

Have the system checked for leaks and charge checked.

You might want to take a look at the evaporator, some ZJ's had
problem with them corroding. Also look at the A/C pipe along
the battery for corrosion. Common source of leaks.

Re: 98 GC AC Malfunctioning
 

BEK wrote:

> "Lon" <lon.stowell@comcast.net> wrote in message
> news:jT7Ac.62040$HG.29737@attbi_s53...
>
>
>
>> Push [ A/C ] and [ RECIRC ] and hold while rotating the temp dial
>> clockwise one click. All segments should light up.
>>
>> Let go of the buttons and you should see "00".
>>
>> Read Diags by pushing EITHER the [A/C] or [RECIRC] but not both.
>>
>> You should see a stick figure at this point. If the display
>> stays at "00" there are no fault codes.
>>
>> If you see 25 or 29, the Auto Temp Control Module is tweaked.
>
>
>
> Thanks to everybody for the advice. I did follow instructions to read
> Diagnostic Codes and all I get is 00....no numbers. Also, tried running for
> 10 minutes on lowest cool setting/high fan and the air I'm getting from the
> dash vents is cool, not cold, but nowhere even close to 40 degrees.
> So, if there are any people here with AC experience, I'd appreciate your
> input.
>

Have the system checked for leaks and charge checked.

You might want to take a look at the evaporator, some ZJ's had
problem with them corroding. Also look at the A/C pipe along
the battery for corrosion. Common source of leaks.

Re: 98 GC AC Malfunctioning
 

BEK wrote:

> "Lon" <lon.stowell@comcast.net> wrote in message
> news:jT7Ac.62040$HG.29737@attbi_s53...
>
>
>
>> Push [ A/C ] and [ RECIRC ] and hold while rotating the temp dial
>> clockwise one click. All segments should light up.
>>
>> Let go of the buttons and you should see "00".
>>
>> Read Diags by pushing EITHER the [A/C] or [RECIRC] but not both.
>>
>> You should see a stick figure at this point. If the display
>> stays at "00" there are no fault codes.
>>
>> If you see 25 or 29, the Auto Temp Control Module is tweaked.
>
>
>
> Thanks to everybody for the advice. I did follow instructions to read
> Diagnostic Codes and all I get is 00....no numbers. Also, tried running for
> 10 minutes on lowest cool setting/high fan and the air I'm getting from the
> dash vents is cool, not cold, but nowhere even close to 40 degrees.
> So, if there are any people here with AC experience, I'd appreciate your
> input.
>

Have the system checked for leaks and charge checked.

You might want to take a look at the evaporator, some ZJ's had
problem with them corroding. Also look at the A/C pipe along
the battery for corrosion. Common source of leaks.

Re: 98 GC AC Malfunctioning
 

> > "Lon" <lon.stowell@comcast.net> wrote in message
> > news:jT7Ac.62040$HG.29737@attbi_s53...
>
> Have the system checked for leaks and charge checked.
>
> You might want to take a look at the evaporator, some ZJ's had
> problem with them corroding. Also look at the A/C pipe along
> the battery for corrosion. Common source of leaks.
>

Thanks for your help Lon. Does the fact that I didn't find any error codes
mean that there are no major parts gone bad....like the compressor or
Control Module? Is the evaporator an expensive part? Trying to get a little
education here before taking it in.

BEK

Re: 98 GC AC Malfunctioning
 

> > "Lon" <lon.stowell@comcast.net> wrote in message
> > news:jT7Ac.62040$HG.29737@attbi_s53...
>
> Have the system checked for leaks and charge checked.
>
> You might want to take a look at the evaporator, some ZJ's had
> problem with them corroding. Also look at the A/C pipe along
> the battery for corrosion. Common source of leaks.
>

Thanks for your help Lon. Does the fact that I didn't find any error codes
mean that there are no major parts gone bad....like the compressor or
Control Module? Is the evaporator an expensive part? Trying to get a little
education here before taking it in.

BEK

Re: 98 GC AC Malfunctioning
 

> > "Lon" <lon.stowell@comcast.net> wrote in message
> > news:jT7Ac.62040$HG.29737@attbi_s53...
>
> Have the system checked for leaks and charge checked.
>
> You might want to take a look at the evaporator, some ZJ's had
> problem with them corroding. Also look at the A/C pipe along
> the battery for corrosion. Common source of leaks.
>

Thanks for your help Lon. Does the fact that I didn't find any error codes
mean that there are no major parts gone bad....like the compressor or
Control Module? Is the evaporator an expensive part? Trying to get a little
education here before taking it in.

BEK

Re: 98 GC AC Malfunctioning
 

> > "Lon" <lon.stowell@comcast.net> wrote in message
> > news:jT7Ac.62040$HG.29737@attbi_s53...
>
> Have the system checked for leaks and charge checked.
>
> You might want to take a look at the evaporator, some ZJ's had
> problem with them corroding. Also look at the A/C pipe along
> the battery for corrosion. Common source of leaks.
>

Thanks for your help Lon. Does the fact that I didn't find any error codes
mean that there are no major parts gone bad....like the compressor or
Control Module? Is the evaporator an expensive part? Trying to get a little
education here before taking it in.

BEK

Re: 98 GC AC Malfunctioning
 

BEK wrote:

>>>"Lon" <lon.stowell@comcast.net> wrote in message
>>>news:jT7Ac.62040$HG.29737@attbi_s53...
>>
>> Have the system checked for leaks and charge checked.
>>
>> You might want to take a look at the evaporator, some ZJ's had
>> problem with them corroding. Also look at the A/C pipe along
>> the battery for corrosion. Common source of leaks.
>>
>
>
> Thanks for your help Lon. Does the fact that I didn't find any error codes
> mean that there are no major parts gone bad....like the compressor or
> Control Module? Is the evaporator an expensive part? Trying to get a little
> education here before taking it in.

No codes *may* be good news... Dunno how much the evaporator costs,

but it may require a few other parts replaced at the same time. Take
a look at it for any rusted, corroded appearance. Looks like a tall
metal cylinder about halfway between the radiator and the firewall.
If you live in an area with a lot of competition, an A/C specialty
shop should be willing to pull a quick pressure and leak test, plus
a new charge for lots less than the dealers usually charge.