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Old 07-05-2005, 01:01   #1 (permalink)
mikepier@optonline.net
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97 A/C not working

The A/C on my 97 V6 stopped working. I did a search on this topic and
one guy suggested it might be the compressor clutch coil.
Where is the clutch coil and is it easy to replace myself? I'm assuming
this may be my problem if I'm getting 12V to the compressor.

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Old 07-05-2005, 01:01   #2 (permalink)
AW
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Re: 97 A/C not working

On Mon, 04 Jul 2005 16:04:02 -0700, mikepier wrote:

> The A/C on my 97 V6 stopped working. I did a search on this topic and
> one guy suggested it might be the compressor clutch coil.
> Where is the clutch coil and is it easy to replace myself? I'm assuming
> this may be my problem if I'm getting 12V to the compressor.


The clutch is pretty simple. I had to do it and the relay module not too
long ago. It's about $100 at Discount. It bolts right onto the compressor,
it's black and there's a small gap between it and the pulley. The way that
it works is that 12 volts are applied to it, causing it to magnetize and
clamp to the pulley (you may have heard it when you first start the car
for a number of years) which causes the compressor to turn. Mine shorted
out somehow, and took the relay out with it. I seem to recall that I used
my hanes manual to get the run-down on replacing it. I think it was just
three screws once the belt was off, but again it was some time ago.
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Old 07-05-2005, 01:02   #3 (permalink)
mikepier@optonline.net
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Re: 97 A/C not working

OK, here is some more info on the problem:
The car actually belongs to my brother-in-law. He told me 2 different
mechanics told him he has enough freon,the pressure is good, so they
told him it might be something electrical since the compressor is not
turning on.
So I went to do a voltage reading on the compressor and it's not
getting voltage. So now I figure it might be a bad pressure switch so I
attempted to jump it, but there are 3 wires going to the pressure
switch, red, black and maybe pink? I was not sure which ones to jump. I
tried the black and red, but that caused a spark. So I tried jumping
the others, but the compressor still did not turn on. Anyway I double
checked the fuses and they are good. Does anyone have any
troubleshooting tips? Where do I start?

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Old 07-05-2005, 01:02   #4 (permalink)
AW
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Re: 97 A/C not working

On Mon, 04 Jul 2005 18:20:52 -0700, mikepier wrote:

> OK, here is some more info on the problem:
> The car actually belongs to my brother-in-law. He told me 2 different
> mechanics told him he has enough freon,the pressure is good, so they
> told him it might be something electrical since the compressor is not
> turning on.
> So I went to do a voltage reading on the compressor and it's not
> getting voltage. So now I figure it might be a bad pressure switch so I
> attempted to jump it, but there are 3 wires going to the pressure
> switch, red, black and maybe pink? I was not sure which ones to jump. I
> tried the black and red, but that caused a spark. So I tried jumping
> the others, but the compressor still did not turn on. Anyway I double
> checked the fuses and they are good. Does anyone have any
> troubleshooting tips? Where do I start?


Sounds like it could be the relay module. If that's the case, have the
clutch tested by before you replace it or the new one could blow too.
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Old 07-05-2005, 01:02   #5 (permalink)
mikepier@optonline.net
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Re: 97 A/C not working

> Sounds like it could be the relay module. If that's the case, have the
> clutch tested by before you replace it or the new one could blow too.


Where is the relay module and how do I test the clutch?

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Old 07-05-2005, 01:02   #6 (permalink)
alicecooperrules12@yahoo.com
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Re: 97 A/C not working

On 4 Jul 2005 21:15:31 -0700, mikepier@optonline.net wrote:

>> Sounds like it could be the relay module. If that's the case, have the
>> clutch tested by before you replace it or the new one could blow too.

>
>Where is the relay module and how do I test the clutch?

put 12 volts to clutch
see if it licks in
put a test lite at plug does it lite
ya stupid foctard

h
u
r
c
a
s
t

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Old 07-05-2005, 01:02   #7 (permalink)
Richard
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Re: 97 A/C not working

I suspect that it may be the A/C cycling switch. This switch is located on
top of the suction accumulator/drier. (passenger side at the firewall). This
is the servicing procedure:

A/C Cycling Switch
Removal

1. Disconnect the wire harness connector from the A/C cycling switch
(19E561).
2. Unscrew the A/C cycling switch from the top of the suction
accumulator/drier (19C836).

Installation

1. Lubricate the O-ring seal on the suction accumulator/drier nipple with
clean Motorcraft YN-12b refrigerant oil or equivalent meeting Ford
specification WSH-M1C231-B.
2. Screw the A/C cycling switch on the suction accumulator/drier nipple and
hand-tighten.
3. Connect the wire connector to the A/C cycling switch.
4. Check the A/C cycling switch installation for refrigerant leaks.
5. Check the system for proper operation.

Mine died this past spring and I had originally thought that it was the A/C
compressor clutch. The A/C cycling switch is an easy and cheap fix.

Richard

'94 GT 'vert
Under Drive Pulleys
Transgo HD2 Reprogramming Kit
High Stall Torque Converter
4:10 Gears
Gripp Sub Frame Connectors (welded)
FRPP Aluminum Drive shaft
FRPP M5400-A Suspension
Laser Red

<mikepier@optonline.net> wrote in message
news:1120536931.250586.120350@o13g2000cwo.googlegroups.com...
> > Sounds like it could be the relay module. If that's the case, have the
> > clutch tested by before you replace it or the new one could blow too.

>
> Where is the relay module and how do I test the clutch?
>



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Old 07-05-2005, 07:02   #8 (permalink)
mikepier@optonline.net
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Re: 97 A/C not working



alicecooperrules12@yahoo.com wrote:
> put a test lite at plug does it lite
> ya stupid foctard

Read my second post again. I said I was not getting 12V at the
compressor.

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Old 07-05-2005, 07:02   #9 (permalink)
mikepier@optonline.net
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Re: 97 A/C not working



Richard wrote:
> I suspect that it may be the A/C cycling switch. This switch is located on
> top of the suction accumulator/drier. (passenger side at the firewall).


Rich, I suspected that may be the problem too, but is there a way I can
jump it for a second or to two to see if the compressor kicks on? As I
said in my previous post there are 3 wires going to the switch, so I'm
not sure which ones to jump. Also, I'm not sure if you have to evacuate
the system when replacing the switch.

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Old 07-05-2005, 15:01   #10 (permalink)
Richard
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Re: 97 A/C not working

You do not have to evacuate the system. The instructions I gave are from
Ford's service manual. My valve was sticking and a light tap would sometimes
allow the circuit to close and thus engage the compressor clutch. .

--
Richard

'94 GT 'vert
Under Drive Pulleys
Transgo HD2 Reprogramming Kit
High Stall Torque Converter
4:10 Gears
Gripp Sub Frame Connectors (welded)
FRPP Aluminum Drive shaft
FRPP M5400-A Suspension
Laser Red

<mikepier@optonline.net> wrote in message
news:1120565464.022154.123060@g43g2000cwa.googlegroups.com...
>
>
> Richard wrote:
> > I suspect that it may be the A/C cycling switch. This switch is located

on
> > top of the suction accumulator/drier. (passenger side at the firewall).

>
> Rich, I suspected that may be the problem too, but is there a way I can
> jump it for a second or to two to see if the compressor kicks on? As I
> said in my previous post there are 3 wires going to the switch, so I'm
> not sure which ones to jump. Also, I'm not sure if you have to evacuate
> the system when replacing the switch.
>



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