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Code 117 &118 engine coolant temperture low.

Tiny
DADDYSMURF180
  • MEMBER
  • 1992 FORD TEMPO
  • 136,000 MILES
Code 117 &118 engine coolant temperture low &high input, what is the cause of this reading? I have changed the coolant, Fan. Engine coolant sensor, thermostat and housing. When the sensor is pluged in the fan will not come on until the car almost reachs hot. When the sensor is unpluged the fan comes on when I start the engine or I can unplug the sensor when the car is running and the fan will come on!
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Thursday, November 8th, 2012 AT 10:41 PM

1 Reply

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Suspect wiring problem possible ground. Remove terminal from ECT and ACT key on use meter to check voltage then check for ground. Pulling terminal should NOT turn fan on because resistence would be infinate so indicates wiring fault
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Friday, November 9th, 2012 AT 2:57 PM

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