2017-10-10
Illuminated check engine light
Harsh or delayed shifting
Transmission slipping or not engaging
Poor fuel economy
Faulty transmission fluid temperature sensor
Shorted wiring or connections in the circuit
Corroded or damaged electrical connections
Failed transmission control module (TCM)
Transmission Fluid Temperature Sensor: Gear fluid line delivers gear fluid/oil between the various gear parts that need lubrication. The Gear fluid temperature sensor monitors the fluid temperature in the line. Problems lead to difficulty in shifting gears
Replace the transmission fluid temperature sensor
Check and repair any damaged wiring or connections
Clean or replace any corroded electrical connections
Replace the transmission control module (TCM) if necessary