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William, Auto Technician
Category: Chevy
Satisfied Customers: 284
Experience:  7 ASE Certifications, Undercar Specialist, 20+ years exp.
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my four wheel drive..front rear end actually loses traction

Resolved Question:

When I try and engage my four wheel drive I hear it try and engage, but the front tires never pull and my rear end actually loses traction.
Submitted: 10 years ago.
Category: Chevy
Expert:  William replied 10 years ago.

I'd check the front differential actuator, located on the passenger side inner fender well in many applications under the battery. These are typically vacuum units and are prone to failure. With the engine running, and shifted into 4wd, check the vacuum to the actuator, as well as if it's functioning.

Let me know if you need more help/


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