Hiya' date=' its showing normal running temps, it fluctuates between 72 on a run, and 88 when standing in traffic. The fans come on about 88 then it declines to around 80 whilst standing. if its the water pump, how would i tell? and where is the main pump situated? Cheers! [/quote'] In most caes if the water pump fails the water temp gets very hot as it doesn't get pumped through the rad. similairly if the the thermostat gets stuck shut. As an aside if the water temp is fluctuating the thermostat could be stuck open - or removed. main water pump is powered by the belt on the air filter end o