Originally Posted by
Joris_FRST
ALU Rad
and put a relay on the temperature switch,
so it doesn't have to carry the 20+ amps.
(temp switch will switch relay, wich will then switch the fan)
Also sometimes fans get wored out (well it runs as soon as you go under 30mph, lol, so it will have carried more miles then the car itself) Make sure you get a genuine fan for a FRST, as app other fiesta fans are not as powerfull ?
Thermostat gets regulary fucked too, so start with that, then leave car running, if temp goes over 98° C and fans don't come in, it will be relay or temperature switch.
Make sure you get the right temperature switch, there are different ones about.
Good point
I remember everytime I'd approach lights I'd try rolling up to them to keep the car moving so the fan didn't come on
While your at it make sure the fan are getting 12v as the engine bay is quite tight the alternator gets a hard time.
I timed my fans on a std rad was 3 to 4 mins with a alloy rad it was 2 to 3mins. I can't remember exact times as it was over 10years ago.
