My heater takes ages to warm up and only get luke warm. How can i make them hotter?

1993 TOYOTA STARLET
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CRAIGANT
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coolant is new and full and it has been bled properly. It has had a new thermostat.
Jan 19, 2012 at 2:50 PM
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RASMATAZ
  • ASE Certified Mechanic
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  • ASE Certified Mechanic
Check the heater control valve and the air blend door/actuator to include the heater core-
Jan 19, 2012 at 3:45 PM
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CRAIGANT
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Thank you, Are you able to be more specific on how i can check these?
Jan 19, 2012 at 4:55 PM
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KHLOW2008
  • ASE Certified Mechanic
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  • ASE Certified Mechanic
At the firewall there are two heater hose. One of it would have a valve that is controlled by a cable. Ensure the valve is fully open when heater is used.

Did you try back flushing the heater core? they can get clogged up pretty bad if coolant was not replaced previously.
Jan 19, 2012 at 5:02 PM
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RASMATAZ
  • ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Get a repair manual and start with the heater control valve if its funcioning correctly-
Jan 19, 2012 at 5:09 PM
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