no 4x4
#1
no 4x4
i have a 1999 tahoe. no 4 wheel drive.when i push the 4hi button it will blink a couple of times then remain steady but no 4x4. when in 2hi the front drive shaft will turn free when i hit the 4hi button it will not turn seems to be engaged but no 4x4 just rear wheel drive. what do you think encoder motor problem?
#2
could be encoder, could be actuator at front diff. however, if the driveline locks in, then i would rule out the encoder. for the most part anyway. gm's are notorious for having the actuator on the front axle go bad. most parts stores carry, about $75-$100. really easy to change.
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