Question about 2003 Mitsubishi Lancer

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2003 lancer oz No heat at idle

I have no heat at idle unless you increase the rpms. But when the rpms go down to normal the air gets cool. I replaced thermostat, water pump& pushed water through the heater core to make sure it flows good and everything seems good. But when my car is at idle its about 700 to 800 rpms.

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  • sub91legacy Feb 05, 2009

    the coolant level is full

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Make sure the coolant level is all the way full

Posted on Feb 05, 2009

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I have a Nissan Murano 2003. The cvt transmission was replaced 4 years ago. Now when Im driving up hills,the rpms get stuck at 4.5 and the sounds like my car is growling. Heats the engine up fast but the...


The engine and the Trans are in timing with each other from the factory...If the RPMs are revving up but the TRANS isn't keeping up with the Engine The problem sounds to be in the trans...Unless your calipers are sticking and holding you back....!?...A Throttle position Sensor can give you problems because It controls the throttle but normally if it is faulty it should run rough at any level....Same goes for the Idle Air Control valve....A fault in either of these components will produce abnormal RPMs and a rough running engine....Early signs of a clogged fuel filter will stall you while going up a hill also.....Of course the engine will get a temperature increase because it is being overworked....It may not be as hot as you think considering the gauge reading you described...You would have to use a handheld thermometer for a positive engine degree reading....However if it is evidently boiling hot and gauge reads normal it sounds like a faulty sensor in which case is a different problem....Make sure coolant is full to be safe......m..

Feb 18, 2015 | 2003 Nissan Murano

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Losing heat during idling


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2003 Lancer OZ Can't turn the knob from AC to heat. Help!!


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Air conditioning compressor will not kick in,


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FLUCTUATING IDLE ON 2003 LANCER.. ANY IDEA WHY? GOES UP AND DOWN OTHERWIZE RUNS GREAT.


i just fixed mine.. take out your idle air intake valve, clean it all out. mine had the same issue. foreinstance in neutral my rpms were higher then drive. nmpawel80@gmail.com
i also have a 2003 lancer black
http://www.cardomain.com/ride/3325170

Jun 10, 2009 | 2003 Mitsubishi Lancer

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The engine rpm's increase when the engine gets warm.


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