Transmissions and Drivetrains
Dodge Durango
Ford F-150

What is happening when your 99 dodge durango shifts out of over-drive on the highway and the trans temp comes on Is the transmission going out?

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2011-09-13 16:00:14
2011-09-13 16:00:14

Before you replace the tranny, you should replace the transmission filter and fluid. Make sure to use ATF+4 for Chrysler ($5.00/qt, 10 Quarts). No guarantees, but is's worth a shot if it hasn't been done. My tranny started acting goofy at about 100k miles. the fluid was foamy on the dipstick, so I could tell it was breaking down. After replacing it, runs like new.

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