fan/radiator light keeps coming on?

[94opalgt]

just bought 98 and stupid light keeps coming on.the fan is working and the coolant is full.i cant figure this thing out.its not on as soon as i start the car but after a few minutes there it is.any idea's guys? :damnit:

 

[jstreet0204]

just bought 98 and stupid light keeps coming on.the fan is working and the coolant is full.i cant figure this thing out.its not on as soon as i start the car but after a few minutes there it is.any idea's guys? :damnit:

Make sure your mixture is right. Too much water & too little coolant will not let the float come up. I run (75% water/ 25% coolant) in the summer, and my light stays on. The float may also be sticking. try a high pressure nozzle on a water hose to get the gunk off of the shaft.

 

[DGC GT 1]

My 99 stang started doing the same thing one day after i went through a big puddle. I couldnt figure out why the light was coming on. Eventually i just flushed the coolant and the light never came back on.

 

[ACSPONY]

Proper flush and fill should fix it. I think the problem is the mixture like jstreet said. Mine always comes on and stays on for about 5 mins when I drive the car. Then it goes away, I don't worry about it because I know the coolant is full.

 

[94opalgt]

allright guys thanks,i'll flush it and fill it and see what happens.