Question about 2002 Chrysler 300M

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I was driving my 2004 300m tonight and as I came to a red light I cruised into the intersection at about 40mph. My car then downshifted on its own (automatic trans.) into the gear just below the gear I was in. I couldn't go any faster as it would not shift to the higher gear that I was in before the car shifted on its own. At 35mph my RPM's were 3,000. I pulled the car over... shut it off... and it was fine. Then on my way home, after driving 20 minutes it did it again. Then was fine when I shut it off and re-started it.

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Are you throwing any codes? Sounds like limp mode.

Do the key dance to see if you have any codes:

Key in ignition;

Cycle On, off, on, off, on, without cranking it.

If you get P0700 you have the Generic transmission fault code, could range from the TCM to minor\major transmission problems.

Posted on Jan 04, 2011

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Posted on Jan 02, 2017

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