put in a new fan switch(the one that screws into the themo housing)a new switch(the one that plugs onto the fan switch)when i ran the car,the fan did'nt come in when it reached the certain temp when i bridge the 2 pins with one wire the fan works i changed the switch because it did this to the last one thinking it was the fan themo switch which had packed up it fell apart when i took it off!is the themo stat gone as this can only nbe the last port of call-i'm a little worried as the weather is warm and i don't want to do damage to the engine at the moment i'm having the fan running while the engine is on to keep the temp down-any one who can advise would be most grateful!!!!!