The airconditiong in the my above vehicle has ceased to work. If I apply
power to the clutch on the a/c unit it engages and cools perfectly. I have
tried various suggestions from the Brickboard website,but still can't solve
the problem. Any suggestions would be very much appreciated. Thanks.
Kim
Roadie - 19 Nov 2007 01:35 GMT
> The airconditiong in the my above vehicle has ceased to work. If I apply
> power to the clutch on the a/c unit it engages and cools perfectly. I have
> tried various suggestions from the Brickboard website,but still can't solve
> the problem. Any suggestions would be very much appreciated. Thanks.
> Kim
A relay , switch or wire is broken somewhere.
James Sweet - 19 Nov 2007 05:17 GMT
> The airconditiong in the my above vehicle has ceased to work. If I apply
> power to the clutch on the a/c unit it engages and cools perfectly. I have
> tried various suggestions from the Brickboard website,but still can't
> solve the problem. Any suggestions would be very much appreciated. Thanks.
> Kim
Is the pressostate on the filter/dryer cannister bad? It's a common failure,
standard GM part you can pick up at any parts store and it has a schrader
valve under it so you can replace it without opening the system.
Kim Slyns - 19 Nov 2007 06:01 GMT
>> The airconditiong in the my above vehicle has ceased to work. If I apply
>> power to the clutch on the a/c unit it engages and cools perfectly. I
[quoted text clipped - 6 lines]
> failure, standard GM part you can pick up at any parts store and it has a
> schrader valve under it so you can replace it without opening the system.
Yes thanks for that James, I have actually unplugged that and bypassed it.
Still no go.
James Sweet - 19 Nov 2007 07:05 GMT
>>> The airconditiong in the my above vehicle has ceased to work. If I apply
>>> power to the clutch on the a/c unit it engages and cools perfectly. I
[quoted text clipped - 8 lines]
> Yes thanks for that James, I have actually unplugged that and bypassed it.
> Still no go.
I assume the fuses are all good? Is the thermal protector on the compressor
open? Does it engage if you turn the defroster on?
Kim Slyns - 19 Nov 2007 07:37 GMT
>>>> The airconditiong in the my above vehicle has ceased to work. If I
>>>> apply power to the clutch on the a/c unit it engages and cools
[quoted text clipped - 13 lines]
> compressor open? Does it engage if you turn the defroster on?
>Fuses are ok , Where can I find the thermal protecter?
Where can I find the a/c relay? It dosen't seem to be with the others behind
the fuse panel [near ashtray]
I do appreciate your time!!
Kim
James Sweet - 19 Nov 2007 17:46 GMT
>> I assume the fuses are all good? Is the thermal protector on the
>> compressor open? Does it engage if you turn the defroster on?
[quoted text clipped - 3 lines]
> I do appreciate your time!!
> Kim
I have no idea unfortunately, your car is a generation newer than the
pre-update 740s I'm familiar with, it might be listed in the owners manual
though.