hi my 2005 grand caravan my ac would not come on (engage) well i replaced the transducer swith next to drier and beleive it the clutch came on also i did not loose a drop of freon .so if you have this issue the switch is $113 at the dealership i luck up at the junk yard got it for $20 bucks :cheerl:
JOEY_611
04-28-2009, 03:12 PM
Greetings, GrandCaravan5!
I've got ac problem, compressor engages approx 3 seconds after ignition on, fan is off and airflow not directed to defog. Without touching anything, whether driving or idling, compressor remains engaged, eventually causing frost on the pipes. Even if I turn on the fan just to let airflow into the inside (temp setting at minimal) compressor still wont disengage.
Someone said I might need to change the transducer.
How did you change the transducer on your car?
Since freon will need to be evacuated, maybe I should change other parts as well. What are the other parts that should be replaced?
Any help is greatly appreciated :)
GRAND CARAVAN5
05-08-2009, 08:18 PM
the transducer is a switch next to the drier on the passenger side near the air filter a plug connects to it you can srew it off and you will not lose any freon
JOEY_611
05-11-2009, 12:30 PM
Just changed the transducer (got it from Autozone for less than $40). It only took me just a few minutes like you said, no freon loss. But now the compressor won't turn on. I did a recalibration, pressed ac and wash buttons for 5 sec, result is flashing ac and recirc LEDs.
GRAND CARAVAN5
05-18-2009, 04:40 PM
you might need to check and see if you need a recharge
JOEY_611
05-19-2009, 12:30 AM
Whenever I put back the old transducer, compressor kicks in and blows cool air (as in the original problem).
When you installed the replacement transducer that you got from junkyard, did you do any calibration?
Thanks !!!
GRAND CARAVAN5
05-19-2009, 08:03 PM
no calibrations needed i just check to see if i needed a charge everything was fine
