I have had my Mustang since May of this year. I've never had a problem with it running. I recently took apart my instrument cluster to put in some white guages. I noticed that the far right light was missing (Looks like a radiator with a fan). So yesterday I replace the light that was supposed to be there. When I started my car, that light stayed on and it comes on everytime I drive my car. My car never has over heated in fact is runs at the perfect temperature.

What does this light mean and could it possibly be a problem that would ruin my car? I don't have an owners manual so I have no direct way of finding out for myself.

Thanks for all your help! =)

 

It may be a low coolant warning light. Not a temperature warning light but an actual low coolant level light. Could be that the switch is bad and the original owner was too cheap to replace it so they just took the light out. Could also be a wiring or PCM problem causing it to light up for no reason.