1999 Jimmy 4wd not working

Asked by Jan 13, 2015 at 04:19 PM about the 1999 GMC Jimmy 4 Dr SLT 4WD SUV

Question type: Maintenance & Repair

ok have done the vacuum hoses and tested the the diaphragm under the battery. Replaced the switch (4 button) lights up that its in 2wd. When I mash either of the other buttons the 2wd stays lit and no other  one flashes.  This one has the solenoid on the firewall so I unhooked the lines and stuck them together and everything worked as it should.   The switch still showed 2wd , I made it go back to 2wd and tried the buttons again ,but it did the same thing. Any ideas besides the computer for it? I don't hear any clicking from the passenger  kick panel.

1 Answer

I changed the encoder motor on the side of transfer case works perfect now 50 bucks at scrap yard

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