Heater works & engine temp good when parked,& driving no hot air & car runs cold on 1997 Honda Civic

At speed I have no heat or minimal heat and engine temperature is cold. When I'm parked the engine temperature warms and I get hot air? What is causing this?

by in Hebron, KY on January 07, 2014
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
3 answers 2 comments
ANSWER by , January 13, 2014
It's common for the thermostats to stick in the open position on these engines. Remove the thermostat and inspect it.
ANSWER by , January 07, 2014
It's likely the thermostat is weak. Try replacing that first.
COMMENT by , January 09, 2014
I tapped where the thermostat is with the butt end of a ratchet and it works a little better but not great. So more than likely is the thermostat right?
ANSWER by , January 07, 2014
ck coolant level to start with
COMMENT by , January 09, 2014
Coolant is full and checked it's good to -10