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Car Forum / Jeep / April 2007GC check engine trouble
I have a 98 GC, 4.0 auto. The check engine light came on ant the code is P0720, output shaft speed sensor circuit. I got part # 1-04800879 (the sensor). Can somebody who has the factory shop manual scan me the troubleshooting/repair steps for this code. The light has been on for a long time, but the JEEP was running fine. All of a sudden, it stopped shifting gears, stays in 1st, so it is now time to fix. I am going to change the sensor, but if I can get the directions from here, I want to go over the whole circuit. Thanks John in Vegas http://www.billhughes.com/temp/WJspeedSensors.pdf God Bless America, Bill 0|||||||0 mailto:LWHughes3rd@aol.com > I have a 98 GC, 4.0 auto. The check engine light came on ant the code > is P0720, output shaft speed sensor circuit. I got part # 1-04800879 [quoted text clipped - 8 lines] > Thanks > John in Vegas  SignaturePosted via a free Usenet account from http://www.teranews.com Bill sent a link that shows there are 2 speed sensors on the transmission. I'd be concerned about now that I was getting ready to replace the correct one. >I have a 98 GC, 4.0 auto. The check engine light came on ant the code > is P0720, output shaft speed sensor circuit. I got part # 1-04800879 [quoted text clipped - 8 lines] > Thanks > John in Vegas Thanks Bill. Jeff, Im not too concerned that I got the right one because the code reading says its the output sensor. When I bought the sensor, the dealer gave me a copy of the manual that explained the troubleshooting procedure for the whole circuit, but of course I cant find it. I guess I will crawl under it tonight and change it and hope the fault is in the sensor itself. Thanks guys. John in Vegas > Bill sent a link that shows there are 2 speed sensors on the transmission. > I'd be concerned about now that I was getting ready to replace the correct [quoted text clipped - 12 lines] > > Thanks > > John in Vegas I think I would go ahead and remove the driveshaft. Remember it's inch pounds. God Bless America, Bill 0|||||||0 mailto:LWHughes3rd@aol.com http://www.billhughes.com/ > Thanks Bill. > Jeff, Im not too concerned that I got the right one because the code reading [quoted text clipped - 6 lines] > > John in Vegas SignaturePosted via a free Usenet account from http://www.teranews.com OK you got me here. Why would I have to remove the drive shaft? John in Vegas > I think I would go ahead and remove the driveshaft. Remember it's inch > pounds. [quoted text clipped - 18 lines] > -- > Posted via a free Usenet account from http://www.teranews.com More room for a BMFH! God Bless America, Bill 0|||||||0 mailto:LWHughes3rd@aol.com http://www.billhughes.com/ > OK you got me here. Why would I have to remove the drive shaft? > > John in Vegas SignaturePosted via a free Usenet account from http://www.teranews.com What Bill, does he administer the inch pounds one blow at a time? What's the BMFH for, the stuff isn't supposed to be tight. > More room for a BMFH! > God Bless America, Bill 0|||||||0 [quoted text clipped - 3 lines] >> >> John in Vegas I got the sensor changed, the check engine light is out, and it now shifts again. BTW, it was a little different than the directions, but the location was the same, Thank you. Bill, do you have the directions for the trans. oil and filter change as well? I did it on my XJ and I think I remember that something was not exactly straight forward, but it was so long ago... John in Vegas > What Bill, does he administer the inch pounds one blow at a time? What's the > BMFH for, the stuff isn't supposed to be tight. [quoted text clipped - 9 lines] > > -- > > Posted via a free Usenet account from http://www.teranews.com Hi John, I would drill and tap a drain plug in the torque converter, then change it like a Ford or GM. God Bless America, Bill 0|||||||0 mailto:LWHughes3rd@aol.com http://www.billhughes.com/ > I got the sensor changed, the check engine light is out, and it now shifts > again. BTW, it was a little different than the directions, but the location was [quoted text clipped - 5 lines] > > John in Vegas SignaturePosted via a free Usenet account from http://www.teranews.com I don't think drilling the torque converter is such a good idea, maybe the pan. Its got almost 100k on it, so I want to change the filter as well John > Hi John, > I would drill and tap a drain plug in the torque converter, then change [quoted text clipped - 17 lines] > -- > Posted via a free Usenet account from http://www.teranews.com |
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