BertLR90
New Member
Temperature gauge on my 200tdi defender 90 has been reading high, sitting just before the red zone. Needle moves up when I put the heater on which is strange. Heater works fine and engine seems to run as it should. Top hose feels hot, but not too hot that you can't hold your hand on it, bottom hose is luke warm.
I have changed the thermostat, radiator, water pump, temperature gauge sender, and back flushed engine. Can't see it being an airlock as 200tdi should bleed itself and its been running a while like it. Running out of ideas as what it could be. Starting to think it may be electrical, any ideas much appreciated. Cheers.
I have changed the thermostat, radiator, water pump, temperature gauge sender, and back flushed engine. Can't see it being an airlock as 200tdi should bleed itself and its been running a while like it. Running out of ideas as what it could be. Starting to think it may be electrical, any ideas much appreciated. Cheers.