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Dreaded Service 4x4 Message

mbrannon

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mbrannon Enthusiast

mbrannon

Posted
Posted

I ran through some high water on the way home. Service 4X4 light came on the dic... I was in Auto mode when this happened. The messages went out, but the truck will not switch back to 2wd. I did not try to switch to 4H or 4L as I feared getting stuck in one of those modes. Is it possible that the water caused a fuse to blow or something? I've done some searching here and everyone says to replace the switch. The lights are working on the switch. Really got me worried that the sensor motor might be bad. Any ideas?

J-man67 Senior Enthusiast

J-man67

Posted
Posted

Prob a wet sensor or something. I would drain both differentials and re-fill though.

J-man67 Senior Enthusiast

J-man67

Posted
Posted

Sorry, I went back to edit. Both the front and rear differential. If the sensors got wet, then you were in deep enough water to nearly submerge the differentials. They contain your drive gears. If the fluid gets water mixed in with it, it no longer lubricates as it should, allowing your gears to wear prematurely and incorrectly. They are easy to drain and fill back up.

J-man67 Senior Enthusiast

J-man67

Posted
Posted

4" deep? And you are having issues? Thats strange as I have been in water/mud to the bottoms of my doors and no issues. I did have to drain the fluid of the diffs just in case but thats it. Maybe you splashed water somewhere....not sure on this one.

Draenor Senior Enthusiast

Draenor

Posted
Posted
4" deep? And you are having issues?
If it's under Warranty, take it in.

+1 Take it to the dealer if it is. 4" is not deep at all, barely enough to get to the hub assembly. How fast were you going?

J-man67 Senior Enthusiast

J-man67

Posted
Posted
4" deep? And you are having issues?
If it's under Warranty, take it in.

+1 Take it to the dealer if it is. 4" is not deep at all, barely enough to get to the hub assembly. How fast were you going?

 

 

HA, barely enough to get up over the tire and touch the wheel at all.

mbrannon Enthusiast

mbrannon

Posted
  • Author
Posted

Doing about 40mph. Another car was beside me so I couldn't just change lanes. Good news is this morning I put the truck in neutral and the switch changed from Auto to 2wd on its own. Put back in park and it switches back and forth now as it should. I'm going to try the 4X4 this evening to make sure everything is mechanically working ok. As far as warranty.. 50938 miles... I'm guessing I'm just out of warranty.

J-man67 Senior Enthusiast

J-man67

Posted
Posted
Doing about 40mph. Another car was beside me so I couldn't just change lanes. Good news is this morning I put the truck in neutral and the switch changed from Auto to 2wd on its own. Put back in park and it switches back and forth now as it should. I'm going to try the 4X4 this evening to make sure everything is mechanically working ok. As far as warranty.. 50938 miles... I'm guessing I'm just out of warranty.

 

Gotcha...glad its working again. Sensor could of dried out, a solenoid could of been stuck, ect. Powertrain warranty, which should include the transfer case, is good up to 100,000 miles.

Beebe Enthusiast

Beebe

Posted
Posted

If it persists try the switch. Mine SIC said the same thing and it turned out to be just the switch. It is very easy to do.

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