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2002 Land Rover Discovery Question: Car is only overheating when idling , not when on highway



, Las Vegas, NV, October 17, 2011, 17:08

already changed: water pump twice, therm,. hoses. fan

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  • Answer #1

    patrick mannion from Greg Solow's Engine Room, October 18, 2011, 00:10

    You could have a failed cooling fan viscous hub or a thermostat that is not fully opening. Feel that the radiator has no cold spots when the engine is warmed up (would be a sign of a restricted radiator). Possible check for the presence of Carbon Monoxide in the cooling system, CO would be only present if the head gasket was blown.

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