[DML] Re: Air Condition at Highway Speeds

["John Macias" <jdm5@xxxxxxxxxxx>]

Should the fans stay on all the time when the AC is on? I somewhat 
remember mention of this in a past thread.
Previously, when my vehicle needed freon servicing, the fans cut on 
and off every five seconds or so, now after service, the fan fail 
light stays on the entire time the AC is running. Is this right?

John
#7009

--- In dmcnews@xxxxxxxxxxxxxxx, Marc Levy <malevy_nj@xxxx> wrote:
> We discussed this on the other list Bob..
> 
> I told you, it is possible that when you recently
> replaced your AC hose the system was not evacuated and
> charged properly.
> 
> Assuming you have an earlier car that only has the
> low-pressure switch, it is possible the high is WAY
> TOO HIGH causing it to create extra heat in front of
> the radiator.
> 
> Hook a gage set up to the AC and see of if both the
> high AND low are where they should be (you calculate
> it based on ambient air temperature... or use the
> table in the service manual).
> 
> NO, the AC compressor should not stay on all the time
> 
> 
> 
> --- Videobob Moseley <videobob@xxxx> wrote:
> 
> > Please wllow me to hijack this thread for a
> > moment....
> > My AC compressor seems like it is on all the time
> > (when the AC is on)
> > the clutch doesn't cycle on and off, except when I
> > turn the AC off.
> > Is this normal?
> > What tells the clutch to release on and off?
> > What should I check?
> > Is there a relay or sensor that operates this?
> > Thanks.
> > - VB






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