1999 Honda Accord Overheating

Tiny
GIGI726
  • MEMBER
  • 1999 HONDA ACCORD
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 150,000 MILES
My thermostat was replaced two days ago and now the temp gauge constantly goes up and down between midpoint and hot. It hasn't gone quite to H so that the engine light comes on - it just hovers and doesn't settle anywhere. Could the thermostat be malfunctioning? What else would cause this? The head gasket is not blown. The radiator is full. The coolant is full.
Wednesday, April 8th, 2009 AT 11:04 AM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi gigi726,

Either the sending unit is not accurate, you have an overheating issue, bad wiring connections or there is insuficient coolant in the radiator.

When thermostat was replaced, was bleeding done correctly?

Remove radiator cap when engine is cold and recheck the coolant level.
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Wednesday, April 8th, 2009 AT 12:32 PM

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