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GMC Jimmy Transmission Problems

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

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#1 of 40 Transmission problem by gmcdaniel Dec 14, 2007 (12:40 pm)
1998 Jimmy After truck warms up shifts hard between 1st and 2nd gears. any ideas
#2 of 40 99 GMC JIMMY AUTO TRANSMISSION by topher85 Nov 26, 2007 (7:42 pm)
I recently pulled the tranny, had it repaired, and put it back in. The ABS light stays on,the engine light stay on, the speedo doesn't work, and it doesn't shift into 3rd, only 1st and 2nd. At first it would only stay in 1st, i topped up to oil and then it went into 2nd. Does the computer have to be reset in any way? If anyone has any ideas I would really appreciate it. Thanks Replies to this message: foxracer1 (Dec 05, 2007 3:44 pm) arizona_marine (Dec 13, 2007 9:07 pm) topher85 (Dec 15, 2007 11:11 pm)
#3 of 40 Re: 99 GMC JIMMY AUTO TRANSMISSION [topher85] by foxracer1 Dec 05, 2007 (3:44 pm)
Replying to: topher85 (Nov 26, 2007 7:42 pm) hi this is brian i have a 2000 gmc jimmy i had the same problem come to find out i had to replace the speed control sensor its located on the back of the trans u will see a wire that plugs in and the sensor screws out u change that and u will find out the abs light will go out and the serves light will also go out and speed o will start to work again hope i helped u out just to let u know they go all the time theres 3 of them on my truck so hope i helped u out later brian
#4 of 40 Re: 99 GMC JIMMY AUTO TRANSMISSION [topher85] by arizona_marine Dec 13, 2007 (9:07 pm)
Replying to: topher85 (Nov 26, 2007 7:42 pm) Don't know if you got it fixed yet or not but i wanted to confirm another answer that was posted. I have a 01 Jimmy and I recently had my speedo go out, ABS light stay on, check engine light, parking brake light flashing and couldn't shift beyond second gear. I limped it to a repair shop and the computer code was the speed sensor. $143 later and the mechanic had it up and running again. Replies to this message: topher85 (Dec 15, 2007 11:11 pm)
#5 of 40 Re: 99 GMC JIMMY AUTO TRANSMISSION [arizona_marine] by topher85 Dec 15, 2007 (11:11 pm)
Replying to: arizona_marine (Dec 13, 2007 9:07 pm) Yea I got it fixed now, thanks for replying. There was one plug that wasn't fully contacting and then they replaced a small plastic piece that bolts to the side of the tranny on the left lower side. I don't remember what it was exactly, some type of linkage was attached to it. There were 2 electrical plugs built in and one of them was broken.
#6 of 40 Some Help Please by shrekzilla Dec 26, 2007 (2:32 pm)
Hello all, my name is Justin and i am from Michigan. I have a 97 4wd Jimmy. This started about almost a month ago. It was at first an every once and a while thing at the start but it seems as if it is pretty constant now. When the car is place in the Over Drive position, it does not seem to start in the 1st gear position. Possibly 3rd gear is where it starts. If you put the car in 1st gear, it runs in first gear and so on for the other gears. I just don't know what the problem is and i am hoping to get something done by myself without having to pay some guy hundreds of dollars...I do not think that it is mechanical because there has been no slippage or jerking while shifting. This seems to have started all of a sudden over the past month. Also, it seems like when you park the car, it thinks that it is in some sort of gear. I say this because I cannot get the key out of the ignition. I have had the ignition replaced about 2 years ago because I could not turn the key. I know that the car is in Park because I have tried to push it while off and have been unsuccessful, so I am pretty sure it is Park.....I could really use you folks wisdom...please do help.
#7 of 40 94 Jimmy jumps out of gear by dblds Jan 09, 2008 (6:40 am)
Hi My 94 Jimmy suddenly started dropping into neutral after running for a couple minutes. When engine is first started, it will go into drive and reverse but drops into neutral within a minute or so. Shut off engine and restart it, it again goes into gear then neutral. Anyone know what's causing this? It was running great with no transmission problems. Appreicate any help! Replies to this message: kazgaroth (May 31, 2009 4:10 am)
#8 of 40 changeing a tranny on a 2000 gmc jimmy 4wd by foxracer1 Jan 16, 2008 (6:32 pm)
hi this is brian i have a 2000 gmc jimmy 4wd i would like to know if anyone may now how long it takes to change a tranny on my 2000 gmc jimmy 4wd i was told 9 hr it just seems really hi because i have change trans before and it was never that long if anyone knows please let me know email is foxracein_17yahoo.com thanks brian
#10 of 40 1997 GMC Transmission Problems by randomhero Mar 10, 2008 (10:45 am)
Like so many other people on this board, I am having transmission problems with my Jimmy.   I have searched high and low to find the culprit to what is going on...   Mine is a 1997 Jimmy 4x4. When it is cold outside, the transmission shift hard from 1-2 and takes quite awhile (as well as a low speed) to shift from 2-3-4.   The RPM needle shakes violently back and forth thus preventing the vehicle to obtain speed.   The vehicle WILL shift eventually, but this make going up a slight hill very slow and time consuming.   However, when the vehicle is warm or the weather is even warm outside, the transmission shifts great and doesn't seem to hesitate at all.   Could this be something as easy at the TPS, Ignition related, or perhaps bad plugs?   Help me out here as I am growing tired with this vehicle.   Thanks.

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