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GMC Jimmy Transmission Problems

40 messages,  Last post on Jul 12, 2009 at 3:17 PM

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#35 of 40 Re: 94 Jimmy jumps out of gear [dblds] by kazgaroth May 31, 2009 (4:10 am)
Replying to: dblds (Jan 09, 2008 6:40 am) Hi, I have a buddy with a 95 jimmy that's doing the exact same thing. Any chance you ever figured out what was causing the problem?   My friend is a disabled Vietnam vet and on a budget so i was hoping i could help him out with this.     Thanks    Kurt
#36 of 40 1998 jimmy trans surge in drive by phillski86 Jun 02, 2009 (9:49 am)
i've got a 1998 jimmy with 2wd only, the transmission seems to surge between gears when at 45 mph and up. it feels like it down shifts for a second, then finds the correct gear again. it does this every five seconds or so even when its on cruise control... anyone got a suggestion?
#37 of 40 jimmy tranny problems... by hellcattt Jun 03, 2009 (12:09 am)
I never could figure out what was wrong with mine and finally traded it in - didnt want to spend $800 on a torque converter and that not even be my problem.
#38 of 40 95 jimmy sle not shifting after overheating by jaqdadi Jul 12, 2009 (7:17 am)
ok, I have a 95 jimmy sle 4.3, 4l60e auto, w\111K, the vehicle as a whole is in excellent shape, I let my mother drive it to boston and back (40 mile each way) on the way back the water pump blew and dumped all the fluid and also the tranny overheated and flushed a bunch of it's fluid, by the time she noticed the needle was in the red and the vehicle had no power. Towed it home and replaced the water pump, fortunately no damage to the engine as it is running perfect, added some tranny fluid as well, but, now it won't move when I shift it in to 1st, ther is some minor movement, a few straining inches, in any other forward gear I get nothing, when I first start it I can get a few feet in reverse but that's it. I have no problem tearing the engine apart and putting it back together, however my tranny work is limited and so is my budget. I have all the tools and space to work on it. I have replaced solenoids, filters , flywheels, etc.. in many other vehicles so I am not affraid to open this up I would just like to know where to look if possible? thanks. Replies to this message: jaqdadi (Jul 12, 2009 10:22 am) jaqdadi (Jul 12, 2009 3:17 pm)
#39 of 40 Re: 95 jimmy sle not shifting after overheating [jaqdadi] by jaqdadi Jul 12, 2009 (10:22 am)
Replying to: jaqdadi (Jul 12, 2009 7:17 am) I just put it up on jacks and started it, it shifts and the tires move in forward or reverse, but when on the ground nothing. I also am draining the fluid and I have never seen tranny fluid this dark brown and very thick. It's like 80 deg and sunny out and this stuff looks like molasses on a co;d day. Replies to this message: jaqdadi (Jul 12, 2009 3:17 pm)
#40 of 40 Re: 95 jimmy sle not shifting after overheating [jaqdadi] by jaqdadi Jul 12, 2009 (3:17 pm)
Replying to: jaqdadi (Jul 12, 2009 10:22 am) Actually i'll be learning how to do a full rebuid on the 4l60e transmission, this one must have gotten pretty hot cause one of the electrical connectors was completely melted off and the fluid in the pan was like graphite sludge, so in the end i'm probably gonna get it right, but I know it's gonna be painful. If anyone was considering any suggestions, thanks.

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