Service 4WD display on dashboard

By Taft Clayton
November 15, 2017 in Ask A GM Technician

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Taft Clayton

Posted November 15, 2017

Ive got a 2003 Chevey Silverado 1500 4WD...Every few weeks I get the service 4WD only at low speeds of 5-10 mph. I hear clanking under the engine... and console that let's you chose Auto 4wd, 2H, 4x4L or 4x4 H goes to neutral... I switch into neutral, go back into 2H and then no problems until a few weeks later... Any ideas?

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