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2002 Dodge Ram 1500 Question: air and heating system

 

Question

Visitor, 4.7L V8, Mexia, TX, April 02, 2010, 20:21

when i turn on the air condition are heater antifreeze runs in the inside of the cab.this also causes my engine to run hot.

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  • Answer #1

    patrick mannion from Greg Solow's Engine Room, April 02, 2010, 20:32
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     Master

    When the air conditioning is on or the vehicle is in "defrost" the auxiliary fan is supposed to switch on if it doesn't the engine will run hot. If the radiator is partially restricted the cooling system may be put under added pressure when the air conditioning is operating putting stress on the engine's cooling system causing the engine to run hot..

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  • Answer #2

    tony12 April 02, 2010, 20:52
     Rookie

    i just want to find out what is causing this problem

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  • Answer #3

    Visitor, March 23, 2011, 13:37

    replace the heater core

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