my gauge say hot but the engine is not

1999 ACURA TL
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EJDISON
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  • 4 POSTS
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
Nov 2, 2011 at 1:24 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
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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
Nov 2, 2011 at 1:34 PM
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EJDISON
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  • 4 POSTS
I ran it with scanner, temperature never got above 213.
How can fix the gauge misreading?
Nov 2, 2011 at 3:09 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
need to do a sweep test to check the gauge unit. then the temp sender unit needs to be replaced.

Roy
Nov 2, 2011 at 3:39 PM
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EJDISON
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What is a "sweep test"?
Nov 4, 2011 at 12:49 PM
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