1999 Ford Taurus temperature gauge

Tiny
902RTU
  • MEMBER
  • 1999 FORD TAURUS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 150,000 MILES
This summer I did a complete reverse flush to generate some heat from the core and lately I've noticed, as speed and airflow through the radiator increases, the panel temp gauge drops to zero. At idle it returns to normal. Heat is coming from the core - doesn't appear to be a thermostat problem nor is the fan cycling excessively so I'm wondering if a sensor is involved.
Friday, October 8th, 2010 AT 11:46 AM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
When you say the panel goes to 0, are you refering to the engine temp?
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Friday, October 8th, 2010 AT 11:15 PM
Tiny
902RTU
  • MEMBER
  • 6 POSTS
Yes, the coolant temp gauge, but, after a few minutes of standing still, it returns to normal - a little less than halfway up the gauge.
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Saturday, October 9th, 2010 AT 10:52 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
It sounds like a bad temp sending unit. Have you checked to make sure the wiring to it is good?
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Saturday, October 9th, 2010 AT 1:13 PM
Tiny
902RTU
  • MEMBER
  • 6 POSTS
Should have replaced them both. A few months I did the grey connector so now I'll do the brown. At least I now have a 21mm long socket to do the job.
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Saturday, October 9th, 2010 AT 1:41 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Let me know if that fixes it. It could be the sensor itself.

Joe
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Saturday, October 9th, 2010 AT 10:30 PM

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