4 wheel drive trouble

Asked by Jul 21, 2017 at 09:39 AM about the 2002 Chevrolet Blazer 4 Door LS

Question type: Maintenance & Repair

Four wheel drive will not in gauge  is not encoder
motor when you push the four wheel drive button it
before wheel highlights up 4 wheel High blinks
goes back to 2 wheel High the encoder motor does
not even try to engage the system what's the
problem

2 Answers

101,925

Check the harness righ where it comes through the body, I have found some wiring breaks right there. But make sure it is not the shift motor, those can fool you, they work when disengaged from the transfer case but won't work when the load is applied.

1 of 1 people found this helpful.

Ty it probably broke wire it acks like it not getting power I had a harness that I bolt to it and can use jumpers it shifts transfer case but it acks like no power from truck I will check harness ty

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