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Transmission shifting/speedometer not working

Tiny
CDMILLER
  • MEMBER
  • 1994 PLYMOUTH VOYAGER
  • 6 CYL
  • AUTOMATIC
  • 133,000 MILES
Have a 1994 plymouth voyager 3.3 v-6. Transmission quit changing from 2nd to 3rd gear exactly at the time my speedometer quit working. It now will not go past 2nd gear at all. Also check engine light comes on occasionally, which causes engine to have more power but has never gone past 2nd gear.
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Thursday, December 2nd, 2010 AT 8:06 AM

1 Reply

Tiny
DRCRANKNWRENCH
  • MECHANIC
  • 3,380 POSTS
The computer in your vehicle, (ECU) makes decisions to adjust parameters based on sensor input.
One of the sensors is a speed sensor or a VSS. Some will work if speedometer fails, but most will not due to safety related issues.
The problem could be the sending unit, generally on the transmission, the connection between the VSS and speddometer or the speedometer itself.
Let me know if I can help in any way.
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Thursday, December 2nd, 2010 AT 11:24 AM

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