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My gauge say hot but the engine is not

Tiny
EJDISON
  • MEMBER
  • 1999 ACURA TL
My Acura TL '99 gauge needle shows the engine is hot but after testing with the laser thermometer it shows normal temp. Is it ok to drive or what else should I do. I've changed coolant flushed, changed thermostat, coolant temp. Switch, radiator fan & fan
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Wednesday, November 2nd, 2011 AT 8:24 PM

4 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
I would not trust it. Get it verified through a scan tool to see the actual temp. If you are wrong and you overheat it, then you may do internal engine damage.

Roy
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Wednesday, November 2nd, 2011 AT 8:34 PM
Tiny
EJDISON
  • MEMBER
  • 4 POSTS
I ran it with scanner, temperature never got above 213.
How can fix the gauge misreading?
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Wednesday, November 2nd, 2011 AT 10:09 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Need to do a sweep test to check the gauge unit. Then the temp sender unit needs to be replaced.

Roy
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Wednesday, November 2nd, 2011 AT 10:39 PM
Tiny
EJDISON
  • MEMBER
  • 4 POSTS
What is a "sweep test"?
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Friday, November 4th, 2011 AT 7:49 PM

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