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Tracker P0720
08-26-2010, 09:35 PM
Post: #1
Tracker P0720
I may be changing this post as more information comes to me. This is what I know now.

97 Geo Tracker 1.6L Automatic. I was "told" that it has a P0720-TCC code. When I looked up P0720 I came up with Output Speed Sensor. I drove this vehicle and the speedometer worked and it seemed to shift fine. The only thing that I didn't pay attention to was if Lock Up worked.

I don't need a detailed explanation on how Speed Sensors or the TCC circuit works as I spent several years rebuilding transmissions. I would just like to know if anyone else has run into this problem with a Tracker? I have owned 2 trackers and one Sidekick and they were all standard. They all ran well over 100,000 miles, one had over 198,000. I am looking to by the one with this code and it would be my first experience with an automatic Tracker. I never even worked on one in the transmission shop. So I was just looking for a little information if anyone has run into this before. Please bear in mind that the guy may call me and tell me that it was a different code.

Thanks, Garner

Thanks for using the forum,
Garner

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10-02-2010, 09:31 PM
Post: #2
RE: Tracker P0720
Ok, since nobody had any suggestions on this car, I just bought it. The torque does NOT lock up and the code is P0740 which is in fact a torque converter code. So, same question as last time. Has anyone had any experience with this? Out of all of the transmissions that I have rebuilt I have never had to work on one of these. They must be incredibility tuff. I know all of the possibilities, bad torque, bad solenoid, wiring problem, etc. I just wondered if there is a common issue with this 3L30 transmission in a Geo Tracker? Any pointers would be appreciated.

Thanks, Garner

Thanks for using the forum,
Garner

Interested in Mining? Look here: Coal Mining, PA
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10-03-2010, 12:47 AM
Post: #3
RE: Tracker P0720
I know of this code from another vehicle I have in my fleet but nothing of the Geo vehicle you have recently purchased. My first suggestion would be to contact a dealer and see if they have anything which may be a common problem. Perhaps there's another section of the speed sensor for the TC that has nothing to do with the dash speedo? Not sure.
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