engine coolant sensor location please?

1997 MERCURY MARQUIS
137,000 MILES • 5.6L • V8 • 2WD • AUTOMATIC
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RODY903
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My car decides to overheat when i am on the pedal, as soon as i let go of the gas it lowers back down to normal. I have changed the radiator, the water pump, and thermostat, and bled the coolant system. do you thing a bad engine coolant temperature sensor would make this problem happen?
Jun 19, 2019 at 4:32 PM
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STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
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Hello,

I have seen a bad connection at the engine coolant sensor cause this problem. here is the location so you can check it out. If the connection is good replace the sensor. Check out the diagrams (below). Please let us know what happens.
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Jun 21, 2019 at 2:08 PM
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RODY903
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The sensor was bad. but once i drove it, it drove fine but after a while it started overheating again.
Jun 30, 2019 at 3:13 PM
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STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
I bad fan clutch can cause this as well. here is a guide that will walk you through the replacement:

https://www.2carpros.com/articles/fan-clutch-removal

Please run down this guide and report back.

Jul 1, 2019 at 11:06 AM