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2003 Toyota Corolla Question: Heater blows hot air only after the engine runs for 15 mins after starting

 

Question

raj52, 1.8L 4 Cylinder, Pleasanton, CA, December 24, 2011, 08:20
 Rookie

Coolant level is normal.temp gauge is normal.once the car is heated up there is no intermittent proble

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  • Answer #1

    December 24, 2011, 09:30
    Profile_thumbnail
     Master

    could be clogged heater core or a slow thermostat or partially open.

    Roy

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  • Answer #2

    Hal... (see my shops), December 24, 2011, 11:54
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     Master

    Can you feel the radiator core iteslf? Your thermostat could be stuck open or the heater core could have restricted flow. Call Jon at Dublin Auto (925)828-0243. He's a factory trained Toyota Tech and can check it for you.

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  • Answer #3

    ccsmog from Contra Costa Smog and Repair, December 25, 2011, 17:47
     Journeyman

    Heater blows hot air only, when the car has warmed up?? Are you looking for cold air as in air conditioning? It can be mechanical or electronic, low on freon or blend doors not opening. call 925-947-2555 Andre or Bart

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