as above it overheats when u turn it off the gauge drops really rapidly it also goes up to the red instantly done thermostat done water pump flushed cooling system ? any ideas fellas

 

Is it actually overheating or just the gauge saying it is ?
Does it use water, push it out the expansion tank etc, heater blow hot and cold etc etc.
It could just be a lecky issue affecting the gauge/s rather than a actual real cooling issue, more details needed.
tabetha

 

Do the cooling fans activate? (The info to do so is received by the same sensor that supplies the gauge reading )

Martin