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Where is the ECT sensor located?

Tiny
JONATHANF
  • MEMBER
  • 2000 FORD F-150
  • 4.2L
  • V6
  • 2WD
  • MANUAL
  • 185,000 MILES
As of about 2 weeks ago I have noticed that my engine wanted to run warmer, I live in Florida, so it is always hot and year-round. I replaced my radiator, hoses, fan clutch, thermostat and housing as of 2 days ago and it still gets warm when running anywhere above 45 MPH the given temperature it stays at is about 237 when doing 50 in 4th gear. The thermostat I've put in was a 192 degree when it had a 175-degree thermostat in it. The engine's coolant temperature at idle is roughly 220-226. 42l, v6 Essex-engine.
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Saturday, January 1st, 2022 AT 3:43 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi,

The engine coolant temperature sensor is near the thermostat housing. See pic 1 below. Pics 2 and 3 are the removal and replacement of that sensor.

Additionally, there is a cylinder head temperature sensor at the rear of the left cylinder head. I attached directions for the removal and replacement of that as well. (Pics 4 and 5)

Let me know if this helps or if you have other questions.

Take care,

Joe

See pics below.
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Saturday, January 1st, 2022 AT 11:45 PM

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