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Speedometer drops low and the transmission stops pulling

Tiny
GLORIA H
  • MEMBER
  • 1997 FORD TAURUS
While driving my 1997 Ford Taurus, at first everything works perfectly. After a while though, the RPM jumps up high, the speedometer drops low, and the transmission stops pulling. I pull over and stop the engine for a few minutes to let the transmission cool some, then I crank it back up and drive. It pulls again and I get home. This has happened quiet a few times. Could you please tell what is wrong with it and how to fix it. Thanks.
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Friday, September 3rd, 2010 AT 10:59 AM

2 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hello,

This sounds like you have a a vehicle speed sensor that is going out causing the transmission is not know which gear it is in. Is the check engine light on? If so they run this guide to confirm the issue.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Sometimes the computer will not pick up the problem because it is to intermittent.

Here is the VSS location so you can change it out.

Check out the diagrams (Below)

Let us know what happens and please upload pictures or videos of the problem.

Cheers, Ken
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Tuesday, April 13th, 2021 AT 6:49 PM
Tiny
CARRIMARIE
  • MEMBER
  • 1 POST
I know this is an old post but I wanted to tell you I had the same problem and changed the sensor, everything works great now thanks for the help saved me $
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Tuesday, April 13th, 2021 AT 6:49 PM

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