Question about 1999 Land Rover Range Rover

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Heater temperature fluctuates which effects the temp gauge

On three occasions each during the last three winters without any apparent reason the temp gaude starts to rise and fall from red max to normal and back again and so on especially the windscreen heater which is either cold or varying degrees of warm.
The engine shows no signs of overheating But one of the two heating pipes to the heater is either just warm or cold, whereas the other is hotter sometimes very hot.The rad fan stays on for 2/3 minutes when the engine is swithched of.
The problem eventually goes away by itself . Two garages have diagnosed air in the pipes.One changed the solenoid.Nothing worked.can you help. Thanks and regards Richard Perkins

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  • ramp14 Jan 04, 2009

    The sugestions offered have already been tried without success.

    Do you know of anybody who is infinateley involved with Rovers who may have come across this problem before and therefore can pipoint where the trouble lies.



    Any help you can give would be very much appreciated.



    Thanks and best regards.



    Richard

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Sounds like SOUNDS like thermostat and a pressurised coolant flush would be a good place to start that thermostat might be opening and closing due to the above perfect place to start.John

Posted on Jan 01, 2009

  • John Jon Jan 04, 2009

    head gasket that is the next step to look!

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