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SUVs GMC Jimmy GMC Jimmy 4WD Problems
203 messages, Last post on Dec 02, 2009 at 6:53 PM
You are in the GMC Jimmy Forum. Your Hosts are steve_ & tidester
I had the same problem. I was told to change the actuator, and the switch on the dash. Worked fine for a while and then wham it did the same thing again. So I took it to the chevy dealer and had them put it on the machine to determine what was wrong with the 4 wd and the machine came up with the encoder motor. Just replaced it and it is working the best it has ever worked. They are pricey but found a great supplier over the net for a third of the cost. My suggestion is to take it to a chevy dealer that can put it on the machine. Takes about an hour but it is worth the hassle. Hope this helps. If you would like the supplier I got the encoder motor from email me.
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Replying to: caryb1 (Nov 04, 2009 6:05 am)
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Replying to: howie59 (Nov 05, 2009 1:28 am) |
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| My Gmc Jimmy keeps cutting off on me, I can be crusing on the hwy, road and it will just shut down. I will let it sit apprx 30 sec - 1 min and it will start back just fine, but will cut off on me again, seems like when I press on the gas pedal it acts as if the gas is not getting to where it needs to go (when the truck cuts off the signal I get is the battery light comes on) it did this also before I bought a new battery. I have a also replaced the fuel filters and the multi fuel port injectors. Can someone please advise this woman on her vehicle before I spend another dime on it., also it make this kind of 'changelink noise" when I press on the gas, and when AI sit at the light...Please Help... | |
 Just bought a 96 GMC Jimmy from a dealer auction the other day for a winter vehicle and found out the first time I went to use the 4wd in a wet field that the 4wd didn't work. The light for the 4Hi comes on and you can hear it make a sound under the vehicle like it's transferring into 4wd but still doesn't work, when I push the 4Lo button all it does is flash and I can hear it under the vehicle transfer back to 2wd when I push the button for 2wd. What could cause the 4wd not to work when I can clearly hear it transferring back and forth from 2wd to 4wd.
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Replying to: howie59 (Nov 04, 2009 2:12 am)
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I have reviewed the posts, I can not find a match, any time I push a 4 wd button the lights start blinking and the 4wd does not engage, if i push 4w low you can hear the tc down shift, i have checked all the vacum lines and i am getting vacum to the switch on the firewall. Here is the what i have found if i ground the switch on the firewall the white wire i believe the 4wd engages and most of the time it stays engaged. It will return to 2wd any time i push the 2wd switch, I have a 99 jimmy with a 4 button 4X4, I have also checked the connection on the computer on the passenger firewall. thanks mike |
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Replying to: jimmy2001 (Dec 02, 2009 6:32 pm) |
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