Question about 2001 Mitsubishi Eclipse

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2001 mitsubishi eclipe heater does not blow hot air, my gauge reads a little below normal temperature whats the problem??? I just changed my thermostat and radiator and coolant temp sensor. at time when i am in traffic my temp gauge begins to rise, yet as soon as i start drivin it drops back down. did i buy a faulty thermostat???

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  • maxeclipse Dec 19, 2008

    I have the same problem, although my heater does blow hot air. I found that turning on the air-conditioning, prevents the overheating, because the cooling fans go on to cool the air conditioning condenser, which is back to back with the radiator.



    I also found that the cooling fans on the radiator don't go on, until the temperature is above the center on the dashboard gauge, and when they do go on, the fans turn slow, compared to when they turn on from the Air conditioning.



    Now I'm suspecting that the coolant temperature sensor may be dirty, malfunctioning, or have a bad contact.



    Does anyone know where this sensor is located on a 2001 eclipse with a 3.0 engine?

  • tjgrz11 Jan 06, 2009

    I'm experiencing something similar. I don't get any hot air out of the driver side vents (defrost, vent and floor). The air coming out of passenger side has been hot, however that too is now going colder. Temp runs fine, just as normal as it always has. I also have a problem with keeping it set to defrost. If it's on vents or floor, it's no problem (except the cold air), but once the idle has settled down and I switch it to defrost it seems to **** all the power from the car and stalls it out.

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It could be very well your water pump from the sounds of it. When was the last time you had that check or replaced? That would be my next guess to the problem...what's your mileage on the car?

Posted on Jan 02, 2009

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