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4wd Not Working Properly

Thegame1985

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2021 Ram 1500 Bighorn E torque V6

I am having an issue with the 4wd not engaging. When I attempt to select any of the 4wd modes, the 2wd light stays on while whichever 4wd mode light blinks. I can hear the actuators moving. I have only gotten the "Service 4wd" light once.

From a cold start in Park it will shift into 4 HI and 4 Auto. If I put it directly into Neutral without stopping in the gear selector in Reverse, the truck will go into 4 Lo and the other 4wd modes. It is locking as it should when I do this and works as long as it is engaged.

But, the moment I let the truck move, I can shift back to 2wd but it will not go back into any 4wd mode. I can put the truck back in park, turn it off for 5 minutes or longer, and then I can shift to the 4wd modes again until the tuck moves again.

I didn't notice this problem until after my last oil change. I wonder if it could be caused by oil on the front actuator or the connector?

Any suggestions?
 
I tried to put mine in to 4x4 and no lights change, just stays on 2wd... unhooked the battery, now getting "4wd Shift Not Recognized"
 

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I tried to put mine in to 4x4 and no lights change, just stays on 2wd... unhooked the battery, now getting "4wd Shift Not Recognized"
Took mine to the dealer yesterday and they replaced the 4wd actuator. Its working fine now. I am just under 60K on the mileage, so it was warrantied.
 
Took mine to the dealer yesterday and they replaced the 4wd actuator. Its working fine now. I am just under 60K on the mileage, so it was warrantied.
ok, sounds like thats what I am going to do as well. Appt set for next wednesday.. Did you get the same error?
 
Soo o
Took mine to the dealer yesterday and they replaced the 4wd actuator. Its working fine now. I am just under 60K on the mileage, so it was warrantied.
so odd thing happed.. got set of 4 new tires and tested the 4wd several times and still didn’t work. But I got a wheel alignment done today, now everything works as normal! I am struggling weather to take it to the dealer to just look it over because its still in warranty or not take it at all…
 

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