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1992 Mercury Sable transmission shifting

Tiny
REYALSNOMED
  • MEMBER
  • 1992 MERCURY SABLE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 130,000 MILES
I am having a shifting problem with my Mercury Sable. When the transmission is cold it shifts like it is supposed to, but after it warms up, it will not shift out of first gear. I carried it to a shop that flushed the transmission and changed the filter. It did fine for the next 2 days, but then I was going uphill and when it tried to downshift, the transmission shifted from overdrive right into first gear. Any thoughts on what my be wrong with it? Thank you.
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Wednesday, April 15th, 2009 AT 9:12 AM

1 Reply

Tiny
JGAROFALO
  • MECHANIC
  • 489 POSTS
Youmay have a speed sensor that has a temperature problem. Also, check the black and white electrical connectors on the transmission. One is on top of the chain cover, and the other is on the rear underneath the shift cable bracket. Remove the air cleaner and ductwork for access.
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Monday, April 20th, 2009 AT 6:06 PM

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