I have an 05 GMC sierra 2500 HD and when I put it in 4x4 my light comes on to let me know its engaged but when I put any kind of load other then just driving the light turns off n its like I'm in 2x4

Asked by Apr 09, 2014 at 07:49 AM about the 2005 GMC Sierra 2500HD 4 Dr STD 4WD Extended Cab SB HD

Question type: Maintenance & Repair

2 Answers

40

It's not going into 4X4. Some solenoid or other isn't physically working or it's popping out of 4X4. Have a transmission shop or the dealer examine the transfer case/controls.

OK thanks I'll take it to the Chevy dealer

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