my heater is not working properly on 2001 Mitsubishi Diamante

when i turn my temperature up it doesnt heat.

by in Oakland, CA on March 19, 2011
3 answers
ANSWER by on March 19, 2011
It is possible your engine is not running warm enough. Check the heater hoses under the hood to see if they are very hot, or if they are only luke warm. If they are just warm, it could need a thermostat.
ANSWER by on March 19, 2011
Check your colant as well. There is also a coolant temp sensor uder the dash that needs ot checked. Don't think you have a heater control valve that may have failed.
ANSWER by on March 20, 2011
if you're running low on coolant the temp gauge will read low even when hot as the temp gauges the coolant temp NOT the engine temp... if the heater core or hoses to it are clogged (rare) it won't allow the HOT coolant to get to the heater core... and of course we're all assuming the heater fan is operational ? and that you have the proper thermostat installed?

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