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  #1  
Old 09-22-2014, 07:13 PM
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2004 shift issues

Jeep tries to move in neutral as well as drive. How do I adjust the linkage? Pics would really be helpful. Thanks

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  #2  
Old 09-22-2014, 08:14 PM
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Re: 2004 shift issues

Welcome to the garage.
Which engine/transmission?
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Old 09-22-2014, 08:20 PM
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Re: 2004 shift issues

4.7 litre H/O. Not sure the model number of the trans but do know it is the 5 speed automatic.
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Old 09-23-2014, 06:38 AM
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Re: 2004 shift issues

Ok, so it has the 5-45RFE transmission.
In Park all seems to be normal? Reverse works? Does it want to move forward or backwards when in Neutral? This transmission is electronically controlled, but reverse gear is a manual input to the manual valve in the valve body. A misrigged shift cable could for example cause reverse in Neutral, but any forward gear is controlled electronically by the TCM and a shift solenoid. A solenoid could be sticking or one of the clutch packs could be dragging.
No check engine light on? Did you check for eventual fault codes set with a scanner or with the key dance (ignition switch off/run three times and leave in run at the third time. odometer will show "DONE" when no faults set, or a fault code(s).
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Old 09-23-2014, 04:54 PM
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Re: 2004 shift issues

Reverse does not work. When in neutral it moves forward like it was in drive. Had one fault code P0870 which I found is pretty generic. Thanks
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Old 09-23-2014, 07:59 PM
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Re: 2004 shift issues

The P0870 code means that the hydraulic pressure test of the OD clutch failed. As soon as you start driving and above a certain rpm, the TCM (transmission control module) will shortly pressurize each clutch pack and check if the related pressure switch closes. If it doesnīt pass this test a few times, a fault code will be set. Since it lost reverse and it want to move in N, there seems to be something wrong in the valve body.
First thing to do is checking the fluid level and the fluid quality. A burnt smell to the fluid or a black colour is not a good sign.
Then you could check the rigging of the shiftcable. Just remove the shift cable from the transmission input lever and check if the transmission is in the same position as the shift lever. Take care that by moving the input lever, you will take the transmission out of Park and the jeep could start rolling. So apply the handbrake firmly and put some chocks on the wheels.
When you move the input lever, you should feel several detend positions. If you donīt feel that, then there is mechanically something broken inside the transmission.If you do feel the detends, then there is still a change that the connection with the manual valve is broken.
Only by lowering the transmission pan and the valve body, you would be able to see if there is something wrong with the manual valve. If the manual valve is still working, then there is a good change that the solenoid pack is faulty.
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Old 09-24-2014, 07:52 PM
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Re: 2004 shift issues

Thanks for all of your help. One more question for you. Does it make sense for me to just swap out the trans? I can get one for $350 with a lot less miles. I am wondering if I have to start replacing solenoids, is there more repairs to come.
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Old 09-25-2014, 03:28 AM
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Re: 2004 shift issues

A new solenoid pack will already cost you $270, so if you can get a good transmission for $350, i would go that way.
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