my 4wd will not engage on my 2005 suburban...I have changed the encoder motor and selector switch. I can hear the motor trying to engage (while in neutral) and the light flashes on the selector switch. Then it stops and goes back to 2wd on the selector...ANYONE..??
I should have said...ONLY the 4WD LOW will not engage....I can engage 4WD HIGH and Automatic...but low will not work
Put your truck in N, then try to engage the 4WD low. See if that works. If not you may need to replace or reprogram the Transfer Case Control Module.
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