1999 Honda Accord tempeture gauge

100,000 MILES • 2.3L • 6 CYL • 2WD • MANUAL
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NATHAN NUFAN
  • MEMBER
  • 3 POSTS
The car runs fine. I start and let it warm up, the heater works great and temp gauge is normal. But when I take off down the hiway the gauge drops all the way and blows cool air. Shouldn't be thermostat since it does heat up, seems the coolant just gets cold idk...
Jan 29, 2015 at 1:07 PM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
check coolant level first. if low have coolant system pressure checked for internal leak
Jan 29, 2015 at 10:34 PM
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HONDA TECH 1818
  • ✓Experienced Mechanic
  • 536 POSTS
The thermostat could be stuck at open position. I would replace the thermostat first due to the age of the vehicle.
Feb 8, 2015 at 9:13 AM
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