Question about 1999 Chevrolet Silverado 1500
My "Service 4WD" light, on my 1999 Z71 Ext Cab, is on and I am having trouble getting it to go in and out of 4wd. Any suggestions?
On most cars, there is a vacuum operated actuator that shift tranny into 4x4. Sometimes this actuator can get faulty or the circuit to it can get faulty. Other types have just the circuit operation which can become faulty. It should be placed on a diagnostic machine to determine if the system is faulty or if it is just a bad switch.
Posted on Sep 09, 2009
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Posted on Jan 02, 2017
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