will not drive over twenty mph in drive

2006 FORD EXPEDITION
215,000 MILES • V8 • 4WD • AUTOMATIC
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KRISTEN PARNELL LINS
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My SUV will not drive over twenty mph in drive. Then, it seems to go into neutral. I have to switch to second to get it to drive over twenty mph. I have checked the fluid and it seems fine. I also took it to O'Reilly's to check for error codes but they said no error code was found. What might be the problem?
Jul 7, 2017 at 5:39 PM
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STEVE W.
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It sounds like you have a problem with the transmission control module or a bad solenoid pack. Especially if you can manually shift it and have it work. There are likely codes that would point you to the problem but many of the "free" scans use a simple scan tool that cannot "talk" to the transmission controller. I would suggest taking it to a transmission shop or a good local shop and have them scan it. They can also give you an idea of costs of repairs at that time.
Jul 7, 2017 at 9:53 PM