right i have a wierd problem, just had the engine rebuilt, and now when the car is on, the heat dial goes up almost instantly... cheked the pipes and the mechanics say its all the right temerature so the car isnt actully overheating, just the dial is playing up (was working perfetly before rebuild).

theyve changed the thermostat.. nothing

now they are changing the coolant sensor or something and checking the wiring back to the sensor but i dont think its that... any one had a problem like this?

any ideas? cheers all!