1997 Mercury Mountaineer Rpm/mph

1997 MERCURY MOUNTAINEER
210,000 MILES • 5.0L • V8 • AWD • AUTOMATIC
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GINGERBEE
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Rmps are moving as normal after a complete stop or slowing down, but my Mph doesn't seem to catch up with the rpm so my take off after a stop is very slow for Ex.my rpms are reaching 2/3 and my mph is 20 and I have to let off the gas and slowly excelerate Please help me it drives me crazy!!!
P.s: its not a everyday thing but I think its getting worse
Jun 3, 2015 at 5:18 AM
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HMAC300
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  • 48,601 POSTS
scan for codes it may be a vehicle speed sensor problem.
Jun 3, 2015 at 6:50 AM