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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15133
Experience:  GM Grand Master Technician 2007. 14 years experience.
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My name is ***** *****. I have a 2002 Chevy Silverado 1500

Customer Question

Customer: Hi my name is ***** *****. I have a 2002 Chevy Silverado 1500 bought pre owned. the 4wd unit isn't working. I have replaced the dash switch. The lights in 4Hi,4low,&auto just blink without engaging. Regular drive-no problem. There is no "service 4wd" indicator lite on dash.
JA: Thanks. Can you give me any more details about your issue?
Customer: I don't hear any noise during the pushing of buttons. Front wheels do not engage.*****works normally.
JA: OK got it. Last thing — Chevy Mechanics generally expect a deposit of about $18 to help with your type of question (you only pay if satisfied). Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.
Submitted: 10 months ago.
Category: Chevy
Expert:  GM Tech (Cam) replied 10 months ago.

Hi there, I am Cam.

With your issue, do you hear the front axle actuator operate?
If you remove the front axle actuator, does it extend?
Are there any fuses popped under the dash or in the underwood fuse blocks?