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93 Suburban no 4wd


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TheChevynator
New User

Jan 4, 2010, 1:47 PM

Post #1 of 3 (1498 views)
93 Suburban no 4wd Sign In

My suburban wont go into 4wd hi or lo when I shift the selector.This vehicle has no locking hubs.It has CV axles. I tested the 2-wire actuator plug with a test light and got no voltage on green/grey wire.The ground wire was OK.The 4wd fuse is OK.It worked fine a week ago.What could be the problem?


oakleyrodney
User

Feb 8, 2010, 12:20 PM

Post #2 of 3 (1463 views)
Re: 93 Suburban no 4wd Sign In

Is the fourwheel drive electricaly operated or vaccum operated?


TheChevynator
New User

Feb 8, 2010, 5:32 PM

Post #3 of 3 (1458 views)
Re: 93 Suburban no 4wd Sign In

I found the problem.It was the 4wd actuator switch and plug.The plug and switch on top of the transfer case was badly corroded.The prongs in the connector were like mud.I connected 2 of the 3 wires going to the switch and walla I had 4wd.Thanks for your response any way.It looks like you were headin that direction.






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