» » »

Land Rover Q&A

Ask Your Question

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

 

Question

sunshine1, Las Vegas, NV, October 17, 2011, 14:08
 Rookie

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

1 Answer
Flag This
  • Answer #1

    patrick mannion from Greg Solow's Engine Room, October 17, 2011, 21:10
    Profile_thumbnail
     Master

    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.

    Reply
    Flag This
Answer Ranks