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04/05/2021 9:04 pm
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I have a 2014 Ford F150 Raptor with 91,000 miles. The transmission fluid has never been changed on the vehicle. I know typically you're not supposed to do a full flush on a high mileage vehicle, just a drain and fill. Recently I have been noticing some slipping happening here and there when going into second gear, but I am not sure if the PCM needs to be reset or if it’s actual transmission slippage. Do you think it is too risky to do a drain and fill on the transmission fluid? Or is it still worthwhile to prolong longevity?
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04/05/2021 9:53 pm
Check the condition of your tranny fluid first, before you go any further. If you do decide to drain & fill, save the old fluid just in case..
https://carkiller.com/scottykilmer/qa/atf/
