SUBJ: Air Cond/Vent Fan Cut-out at High RPM or Open Throttle
Position, '94 Grand Caravan
I've got an intermittent problem with my vent fan, and now, my
air cond compressor. The fan speed switch works fine sometime,
but other times the fan will only operate on the highest setting.
Just this past weekend, the air cond compressor doesn't seem
to be engaging when the air cond is switched on, at any rate,
there's no cooling.
I'm thinking this could have something to do with an automatic control
that I'm aware of, I don't know if it's throttle position activated
or what, which has always caused the fan to cut-out under
conditions, such as when the car drops down a gear on the freeway
up a moderate hill with a fully loaded vehicle. I'm thinking now
that switch or control is sticking/not operating correctly.
I saw in the engine compartment power center there are fuses and
relays for "hi speed fan" & "lo speed fan", but I'm thinking this
is the radiator fan.
At any rate, anybody know about this throttle-engine speed-vent fan
connection, and what I might try replacing to correct this
Thanks, John Czoykowski, St. Clair Shores MI