Re: A/C clutch not engaging if really hot

From: Terrible Tom (silvereightynine@aol.com)
Date: Tue Jul 08 2008 - 22:19:54 EDT


Dale Schultz wrote:

>
> Hi:
> It's been really hot out in the last few days and my '98 Dakota A/C has
> been
> acting up. The system will run and I get cold air when I first turn it
> on and
> then about 10-15 minutes later the air warms up. Yesterday it was
> especially
> bad during a 1 hour trek. If I turn off the A/C for a couple of minutes
> and
> then back on the compressor starts up again and I get cold air, then the
> symptoms repeat. I took it to the A/C shop and they evaluated, vacuumed
> and
> recharged the system. The charge removed was about 1/2 of a system
> charge of 2
> lbs. After that the system was tested and seemed fine and the air now even
> colder than before, but again after about 10-15 minutes the compressor
> turned
> off and never came back on. This testing was all done at a stand still
> so the
> engine compartment was really hot. We checked the DC voltage at the
> connector
> for the clutch and there was 12VDC present, but the clutch was not
> engaging. Do
> the clutches suffer from heat related problems or is this just a symptom
> of age,
> as the truck has nearly 300,000km on it?
> Thanks.
> Dale
>

Sounds like the clutch is in need of replacement if you ask me

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