Automatic transmission oil temperature light on

Tiny
JCGILLY
  • MEMBER
  • 2004 ISUZU NPR
  • 140,000 MILES
My automatic transmission oil temperature light is staying on, but the transmission fluid level is fine. Also, sometimes it goes off. Should I be concerned or is it a faulty sensor?
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Monday, February 25th, 2013 AT 10:46 PM

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Tiny
CARADIODOC
  • EXPERT
The temperature has nothing to do with level. If the light is on right after you start a cold engine, you know it is not overheating yet and you can suspect a defective sending unit or a wiring problem. If the light comes on after driving a while, a problem with an external transmission fluid cooler would be the most likely suspect.
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Tuesday, February 26th, 2013 AT 2:48 AM

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