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Ask -Brad- Your Own Question
-Brad-
-Brad-, Dodge Dealership Tech
Category: Dodge
Satisfied Customers: 7824
Experience:  16 Yrs Chrysler/Dodge Technician. ASE Master Certified(L-1)
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07 Ram 3500 6.7 4X4 Laramie. Automatic. When undercarriage

Customer Question

07 Ram 3500 6.7 4X4 Laramie . Automatic .
When undercarriage gets wet , shifts into 4wd on its own.
Submitted: 1 year ago.
Category: Dodge
Expert:  -Brad- replied 1 year ago.

It sounds like you have a wiring issue and I would start by disconnecting the transfercase to see if water is in the connector then start tracing the harness to see if you have any spots where it's rubbing the frame or transmission.. The TIPM which is the fusebox under the hood controls the transfercase and if it gets wet it can cause this issue..

Customer: replied 1 year ago.
Replaced TIPM $750.00 no change.
Replaced transfer case motor no change.
Expert:  -Brad- replied 1 year ago.

Then you most likely have a wiring issue and you will need to start opening up harness's until you find the short..

Expert:  -Brad- replied 1 year ago.

If you need anymore assistance feel free to reply and don't forget the RATING before leaving the site!!

Have a great day,

Brad

Expert:  -Brad- replied 1 year ago.

Refund?