Question about 2001 Mitsubishi Galant

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I have like a rust colored dirt coming from the radiator and radiator hoses. I've replaced the radiator, thermostat, coolant temperature sensor and water pump. I have no heat. Car registers hot but no steam or anything like that. What can be wrong?

Posted by Debbie Perez... on

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David Harrelson

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  • 5,440 Answers

Have you backflushed the heater core? Check to see if both heater hoses are getting hot and if not flush it if possible. NOTE: most modern cars run hot water through the core at all times, but direct the inlet air through the core to supply heat by use of flapper doors usually operated by vacuum actuated devices. Vacuum leak, bad check valve to vacuum reservior, or bad actuator can prevent any heat.

Posted on Jan 30, 2015

  • Debbie Perez Caldwell
    Debbie Perez Caldwell Jan 30, 2015

    Heater core was flushed also. Anything else it could be?

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A faulty thermostat sensor can cause the issue too. If you have worn out thermostat, the fan may not trigger that's why the fan won't work when under stressed conditions. A blown radiator blower fuse can cause this issue too so I suggest that you check the radiator blower fuse and replace it when necessary.


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If the radiator is clogged with dirt and rusts this issue occurs too. The coolant doesn't flow normally on the cooling system if it's clogged. If that's the case, I strongly suggest that you have the radiator flushed to drain out dirt and rusts. If you think that the radiator served you enough then it's better to have it replaced.


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