Last post on May 19, 2013 at 12:16 PM
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GMC Jimmy, SUV
#101 of 307 1997 GMC Jimmy 4WD Hi/Lo buttons won't push in
Oct 23, 2007 (9:47 am)
We got a part (4wd switch) from an auto salvage yard because we thought it would fix the issue of the buttons being stuck. When we connect the part you can push the 4wd buttons in but now they do not light up as they used to. We are guessing that we just got another bad part. We also checked the fuses and they are fine. Does this sound like the problem to you too?
#102 of 307 Re: 4WD flashing lights and 4WD engagement. [rcf]
Oct 26, 2007 (7:40 am)
Are you trying to change from 4WD to 2WD when you are driving?
I think its safer, if you pull over, put it in neutral, and change over to 2WD or 4WD.
Mine jimmy's at about 150miles, 250kms, and my truck shifts from 2wd to 4wd to 4wd low perfect, I just keep replacing the trasfercase fluid every summer...its easy and so cheap to do.
#104 of 307 1995 GMC Jimmy 4x4 Engage/Disengage Trouble
Dec 02, 2007 (8:15 am)
I have a 1995 GMC Jimmy w/145k
When you engage 4WD High, while rolling in 2WD Drive, it has a brief delay and you can "Feel" and hear it engage, but when you go back to 2WD, while rolling in 4WD Drive, it seems to wind out like it's in a Low Gear and seem to hear/feel mechanical "Grinding" then almost a loud bang and it goes back into 2WD and drives normally.
I would almost think whatever engages or disengages the different modes is not doing so completely.
#105 of 307 2001 GMC Jimmy 4x4 will not shift into 4hi
Dec 02, 2007 (4:45 pm)
I have a 2001 GMC Jimmy SLS with 130,000 km. It will not shift into 4Hi, Auto4wd or 4Lo. The TCCM has been checked and it is OK, and the shifter motor is OK and the transfer case shifts... BUT... when I push any of the buttons, the lights just flash and flash for a couple of minutes, and you can feel like it is attempting to shift, but it never happens and eventually the vehicle goes back to 2Hi. I don't know what else could be the problem if it is not the transfer case, shifter motor, or TCCM.
Any suggestions would be greatly appreciated! Thanks in advance.
Dec 03, 2007 (7:43 pm)
I have a 2000 jimmy with the automatic button. The check 4x4 light came on for a min. or so and went out. The wife was coming home and put it in 4 auto and was fine, when she got to a really bad roar she tried to put it into 4x4 hi but it went into 4 lo. Then it would not come out. when she got home and told me I went to check it out and it went right into 4x4 hi, then I pushed 4x4 auto and it went ito that. I pushed 4x4 hi again and it went ito lo and will not come out. What is up with this . I guess I need some help bad. thanks
#107 of 307 Re: 4WD flashing lights and 4WD engagement. [rcf]
Dec 04, 2007 (6:45 pm)
hi this is brian i also have a 2000 jimmy 4x4 im also haveing the same type of prob i was told to check the vacuum actuator its under the battery try its got a vacuum hose and a cabel leaver check that and see if it holds when u push it in hold ur finger over the vacuum hole and it should stay in if not thats ur prob also follow the vacuum line up the the fire wall and ull see a peace with to hoses on it with a wire that gose to ur 4wd lights in side hope i helped u. im haveing the same problem mine wont lock in to 4wd and my lights aren't comeing on at all hope i helped good luck
#108 of 307 4wd lo works wont go it to 2wd or 4hi or auto4wd help
Dec 05, 2007 (5:02 pm)
i have a 2000 gmc jimmy i'm having problems trying to get the 2wd back i changed the tccm computer on the kick panel did that because the lights in side didn't work because i went in water with my truck now the lights are back on but its saying its in 4wd lo and will not come back out i hit the buttons the just flash and go's back to 4wd lo can hear it trying to go in to 2wd but nothing happen check all vacuum and vacuum actuator under the battery tray all good followed vacuum line from actuator up to fire wall all looks good not sure if thats the problem the hoses going to the fire wall looks good don't no if its working right any one have any clue what may be wrong
#109 of 307 99 jimmy 4x4 problems
Dec 07, 2007 (9:02 am)
i have the 3 button style with 2 hi, 4 hi, and 4low. I've read all the postings in this section so i have already checked the vacuum lines and there ok , the actuator under the battery tray is working, i can hear the transfer case motor changing when i select 4 hi so i assume that is working also. but only the rear wheels are spining in the snow. any suggestions ???
Dec 07, 2007 (3:58 pm)
i finally got mine working, I found out it was the puttons in the dash, I replaced them and now it works.