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

 

Question

Tepe113, 1.6L 4 Cylinder, Hebron, KY, January 07, 2014, 01:02
 Rookie

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?

3 Answers
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  • Answer #1

    Tires Too (133 Answers) , Londonderry, NH - (603) 473-4287
    tires too January 07, 2014, 02:15
     Journeyman

    It's likely the thermostat is weak. Try replacing that first.

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    Tepe113, January 09, 2014, 20:22
     Rookie

    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?

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  • Answer #2

    Greg's Orange Auto (12947 Answers) , Orange, CA - (714) 361-9386
    globalhelper January 07, 2014, 06:58
     Master

    ck coolant level to start with

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    Tepe113, January 09, 2014, 20:21
     Rookie

    Coolant is full and checked it's good to -10

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  • Answer #3

    AOTL from All On The Line, January 13, 2014, 15:45
    Profile_thumbnail
     Enthusiast

    It's common for the thermostats to stick in the open position on these engines. Remove the thermostat and inspect it.

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