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4 wheel drive problem
My 2001 gmc jimmy will not shift out of 2 wheel high to 4 wheel high or all wheel drive when I push the shifting buttons. The all wheel and 4 wheel lights on the shifter buttons flash but the trans does not engage. The vehicle has sat from last winter to recently.What might be the problem and possible remedy. I apprciate any help and advise given. Thank You, JimJ
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How come I'm not getting any
How come I'm not getting any help ?
Sorry Jim, but from time to
Sorry Jim, but from time to time we miss a question or two. Really nothing personal man. You're problem is most likely a transfer case problem. I'll post a helpful link within the next 2 hours. Just check back for it.
Jim, Sorry man, but the link
Jim,
Sorry man, but the link I wanna send you won’t open. Work with this for now, and if I get the link to open I’ll post it for you. First thing is to check the four wheel drive cable selector to make sure it’s not broken or disconnected. Next check the vacuum switch on top of the transfer case. It's on the driver's side and there are three vacuum lines goin to it. Disconnect all three lines and if your 4 wheel drive actuator at the front differential disengages the 4 wheel drive, then you gotta replace the vacuum switch. With the push button you should be able to hear the shift actuator work on the transfer case. If you don't hear it the actuator (aka transfer case encoder motor) isn't working. Check for any blown fuses (and or) wire harness problems (and or) wire harness connector problems. Look for any physical damage from corrosion and repair or replace as needed. A common failure is a failed transfer case encoder motor.
Problem solved. Disconnected
Problem solved. Disconnected vacuum line, reconnected, thanks for the help, JimJ
You're welcome Jim glad we
You're welcome Jim glad we were able to help.