How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Greg Jensen Your Own Question
Greg Jensen
Greg Jensen,
Category: GMC
Satisfied Customers: 16
Experience:  Master Automotive Technician at Blade Chevrolet
75330729
Type Your GMC Question Here...
Greg Jensen is online now
A new question is answered every 9 seconds

2001 GMC Sierra 1500 - 4WD light blinking, not engaging

Customer Question

2001 GMC Sierra 1500 - 4WD light blinking, not engaging front end.
Submitted: 1 year ago.
Category: GMC
Expert:  Greg Jensen replied 1 year ago.

Hi, my name i Greg I will try and help. So I see you have swapped alot of parts. and I would assume there are no codes, have you swapped the encoder motor on the t-case?

Customer: replied 1 year ago.
new motor. I think I have a mouse issue potentially. I'd like a wiring diagram that shows the 4wd circuitry. I have power on the brown wire, but there are 3 other wires that I don' tknow what should have power and what shouldn't that go to the front axle actuator (which is also new)
Expert:  Greg Jensen replied 1 year ago.

Not sure which you have so these are my listed options.

Customer: replied 1 year ago.
I might be blind, but I don't see where the wires go to the front differential actuator?
Customer: replied 1 year ago.
I see it. Ok, so found a broken blue wire up under the hood on the driver's side inner fender. Got it! Thank you!
Expert:  Greg Jensen replied 1 year ago.

My pleasure, pleasure rate me so I get credit.

Expert:  Greg Jensen replied 1 year ago.

Have a great day!

Related GMC Questions