1998 DODGE TRUCK OUTPUT SPEED SENSOR

  • Tiny
  • guyser1029
  • 1998 Dodge Truck

Electrical problem
1998 Dodge Truck V8 Two Wheel Drive Automatic

Wil a bad output speed sensor affect fuel mileage?

Monday, June 30th, 2008 AT 4:25 PM

1 Answer

  • Tiny
  • rasmataz
  • Member

Yes it will

The output sensor provides a voltage signal proportional to the vehicle speed. The sensor signals are used by the TCM (Transmission Control Module) / PCM (Power train Control Module) to control shift speed, pattern, torque converter clutch apply and the speedometer.

The TCM/PCM also monitors the Automatic Transmission Input (Shaft) Speed Sensor (A/T ISS) along with the Output Speed Sensor (OSS) during shifts in order to determine if a shift is occurring too fast or too slow. The TCM/PCM adjusts the signal to the transmission pressure control solenoid valve in order to maintain a set shift feel. The TCM/PCM also monitors the sensors after a shift to calculate the amount of slippage in that gear. It then adjusts the signal to the Transmission Pressure Control Solenoid in order to maintain slippage below a set amount

Was this
answer
helpful?
Yes
No
Monday, June 30th, 2008 AT 4:35 PM

Please login or register to post a reply.

Similar Questions