Doesn't shift into 4hi or 4lo

Asked by Jan 26, 2017 at 10:43 PM about the 2002 Chevrolet Silverado 2500HD 4 Dr LS 4WD Crew Cab SB HD

Question type: Maintenance & Repair

My issue is that when I push the 4hi or 4lo  
button, it blinks a couple times and goes
back to 2hi.  Their is no sound indicating its
trying to shift! Could this be the shift motor
or 4x4 transfer case module?

1 Answer

98,365

Most common is the transfer case shift motor, 4X4 switch assembly and then the wiring, haven't seen too many problems with the control modules.

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