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Thread: Possible Looming Transmission Issues??

  1. #11
    Lifetime Member Getting Dirty Matt's Avatar
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    I think theres a calibration sequence you can do for the TPS. I wouldn't go throwing parts at it, especially for a system like ours that'll throw a DTC if throttle position doesn't match pedal position.

  2. #12
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    Quote Originally Posted by Matt View Post
    I think theres a calibration sequence you can do for the TPS. I wouldn't go throwing parts at it, especially for a system like ours that'll throw a DTC if throttle position doesn't match pedal position.
    Yeah, really not trying to take the throw parts at it overall approach. But for a cheap $35 part I think it's worth a shot to throw this one at it.
    2007 XK Limited
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    Superchips Flashpaq

  3. #13
    Lifetime Member Getting Dirty Matt's Avatar
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    I hear ya. Might as well disconnect the battery and leave the key on for 5+ minutes too.... reset the modules etc.

  4. #14
    Super Moderator Getting Dirty 07JeepXK's Avatar
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    Quote Originally Posted by Matt View Post
    I think theres a calibration sequence you can do for the TPS. I wouldn't go throwing parts at it, especially for a system like ours that'll throw a DTC if throttle position doesn't match pedal position.
    Matt. I was having a crazy idling issue last march and was told to replace the Throttle Position Sensor. I replaced the TPS and haven't had any issues since. I got the part for cheap and only took a few minutes to replace it. I didn't get any codes or anything from the bad TPS so I think it's worth a try for him to replace it since it's very inexpensive. It wouldn't hurt to eliminate the TPS as being the problem. I have the same year and engine XK as he does
    Last edited by 07JeepXK; 12-04-2013 at 11:51 AM.
    2007 4.7 Liter XK | Front Modified OME HD Lift | Rear 4" Superlift | JBA UCA's | Rusty's Rear Adjustable Track Bar | Rysty’s Adjustable Upper and Lower Rear Control Arms w/Heim Joints | Mickey Thompson Classic III 17x9 Wheels | 315/70R17 Goodyear Duratracs | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front Electronic Locker | Rear Heat/AC Delete

  5. #15
    Lifetime Member Getting Dirty Matt's Avatar
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    Idling issues without a DTC are a lot more likely than torque converter locking issues without a DTC caused by the TPS since the PCM is constantly monitoring pedal position vs throttle position while driving (so a hunting TPS without pedal movement would/should throw a code)

    I was just saying it might be worth trying a calibration first since that might cause the issue without a DTC and not cost any money.

    But yeah, for $35 kill two birds with one stone.... disconnect the battery and install a new sensor; Itll be a new part and automatically calibrate.
    Last edited by Matt; 12-04-2013 at 12:12 PM.

  6. #16
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    Trouble is the time constraints for me here. So if any of this fixes it, I'm not going to know which one did it, battery disconnect/reset, TPS, trans tune and fluid/filter change...
    2007 XK Limited
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  7. #17
    Lifetime Member Getting Dirty Matt's Avatar
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    Lol as long as its fixed afterwards it doesn't matter, right? Fluid filter/change counts as preventative maintenance anyway

  8. #18
    Super Moderator Getting Dirty 07JeepXK's Avatar
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    ^ what he said.
    2007 4.7 Liter XK | Front Modified OME HD Lift | Rear 4" Superlift | JBA UCA's | Rusty's Rear Adjustable Track Bar | Rysty’s Adjustable Upper and Lower Rear Control Arms w/Heim Joints | Mickey Thompson Classic III 17x9 Wheels | 315/70R17 Goodyear Duratracs | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front Electronic Locker | Rear Heat/AC Delete

  9. #19
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    To me it won't matter what in the heck fixes it, as long as it's done! Just won't be of much help to anybody who has a similar problem in the future.

    It is preventative maintenance. His though on the service though was it's money wasted if I end up taking it to a tranny shop real soon and they have to tear it down to inspect.
    2007 XK Limited
    4.7 Flex
    QDII
    Superchips Flashpaq

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