James_1

Not sure if this is the same problem as my Diesel Galaxy, on high speeds and up hills the temperature gauge rises and only comes down if I lift off the throttle or slow down. Also the heater temperature is fairly cold unless the temperature gauge is near the red! I don't know what to check or change, perhaps check the impellor, water pump by the looks of this or perhaps thermostat?

Not sure if this is the same problem as my Diesel Galaxy, on high speeds and up hills the temperature gauge rises and only comes down if I lift off the throttle or slow down. Also the heater temperature is fairly cold unless the temperature gauge is near the red! I don't know what to check or change, perhaps check the impellor, water pump or thermostat?