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Old 07-30-2016, 03:46 PM
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P0605 and high rpm

My wife's 2003 Sahara auto was throwing the code p0605 and wouldn't go over 3rd or so gear. I came and put some lux as tranny additive in it and it ran perfect for a day and the check engine light went off. Today it started again and the soonest any dealer near me can see me and flash the pcm is August 22nd. Is there anything I can do to fix it on my own? Thank you

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Old 07-30-2016, 03:58 PM
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Re: P0605 and high rpm

You can try and disconnect the negative battery terminal for some 10 minutes and try again. There seems to be something wrong with the internal memory of the TCM. I wonder if a flash will help, or that it finally requires a new TCM.
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Old 07-31-2016, 05:54 PM
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Re: P0605 and high rpm

Check engine light turned off then 5 minutes later turned back on and jeep went back into limp mode.
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