Re: HELP--WOT or WTF ? 96 Ranger A/C
Thanks for the responses everyone. The pressure was checked with one of
those red/green/orange gages from advance auto, the kind attatched to the
can, it read green so I did not charge it. great airflow from the vents,
cold too, for a few seconds. Blend, hot cold working well too. Also sweat
from the accumulator. it seemed to start out as a problem just at cruising,
idle would run comp. always, but now its also cycling at idle too. Fan
clutch is drawing ALOT of air.
I just replaced the original battery with oem battery (9.5 yrs on it). But
this problem was in the works before I replaced it.
Thanks for any help.......... T.J.
"Tom Adkins" <firstname.lastname@example.org> wrote in message
> TJ wrote:
> > 1996 Ford Ranger XLT ext. cab, 2.3 ltr. pwr steering, 5 speed, 55k
> > the a/c has full charge and is not leaking. the comp. keeps cycling
> > seconds or so, not long enough to really cool things down, but cool none
> > less. wot switch? or wtf? any help would be much appreciated.......t.j.
> How do you know the system is fully charged? It sounds a little low.
> on newer vehicles have a smaller capacity and just a few ounces will cause
> symptom. The charge amount is pretty critical. A couple of things to
> Is the interior fan working properly on all speeds? Is there good
airflow out of
> the vents? Is the blend door (hot-cold control) working and adjusted
properly? A down
> and dirty check is to see if the accumulator is cold and sweating
> the engine at high idle. If so, it should be cooling pretty well.
> To check the refrigerant system correctly you need to know both the high
> side pressures along with the ambient temperature. Also need to know if
the lack of
> cooling happens at idle\low speed, cruising speed or all the time. The low
> from the parts store really don't tell you anything useful, if that's what
you are using.
> Another often overlooked part is the engine cooling fan clutch. A weak
> cause poor cooling at idle and low speed and ocassionally compressor
cycling due to
> high head pressure. At 1500 RPM the fan should pull a LOT of air through
> Check the easy things before you start chasing electrical bugaboos that
> arent there. There is no WOT switch, just a high pressure cutout and a low
> cycling switch. They do fail but not very often.