Question about 2003 Dodge Grand Caravan AWD

2 Answers

My AWD seems to be acting like FrontWD, it took me 8 tries to get up my icy driveway but last year I had no trouble no matter how icy. Front wheels spin, back wheels don't. What kind of failures could cause this problem with this vehicle? No other problems, no codes, 249K miles.

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  • kdewald Dec 09, 2009

    The advice was probably good, but offered no specific ideas for how to proceed. I think maybe another expert might have additional insights into what to do. The code reader was an Innova 3100 but it couldn't connect for the advanced DTC codes. This model Grand Caravan doesn't have the Traction Control option on the dash.

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  • Dodge Master
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About the only thing that will cause this is the all wheel drive transfer case engagement motor has failed, to test this you will need to get under the vehicle and pull the actuator out of the all wheel drive transfer case and see if the motor works when you apply 12 volts to it, if you are not familiar with this type of testing then i strongly suggest a dealer do this testing.

Posted on Dec 09, 2009

  • yadayada
    yadayada Dec 10, 2009

    transfer case codes can not be read by the scanner you have, it requires a dealer level scanner that can read body control module codes (BCM), and no i don't have full diagnostics because I need fault code information to provide that, one question though, has the fluiod ever changed in the transfer case? it should be done every 60,000 miles min. if the fluid wears out and the friction modifiers then the case can stick and not engage, there is a cltuch ion it that causes this condition

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  • Master
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This is a pretty common issue with alot of cars. It seems trying to duplicate the problem when diagnosing is hard because we usually dont have ice and a hill when we need it. If no codes are stored my first question would be what code reader did you use, A low grade one will only read PCM codes. You have several other computers in the car including the ABS traction control one.. A scanner that can access all the computers will be needed. Anything else is a guess and can get pretty expensive if one guesses wrong.
Alot of cars hav a traction control button.. When pushed will unlock the rear from the front so the car can be put on a 2 wheels Dynometer tester. Are you sure this is not the case
Most likely if you choose to have this diagnosed its possible nothing will be found.
And if they did, are you ready to fork out $1000 bucks for a maybe.
If no codes are stored a recommedation will be made to either wait or replace the computer. If it were anything else other than a computer the computer would see a issue and set a code.

Posted on Dec 09, 2009

  • Ernset ( Skip ) Bouvette

    The only way to proceed is to take it in to be diagnosed. I'm just warning you that usually a fault cant be found if there are no codes. The diag will cost you 150 bucks on average. I was under the impression that no matter what you were going to bring the car in because noone these days has the diagnostic equipment to do anything at home

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