Every time I start my Stang (when its cold) the low coolant light stays lite until the car is warm! The rad and overflow are full too but the light stays on while the car is cold can anyone tell me why its doing that?
water expands when it is warm, so it sounds like your just barely low on coolant. When you first start your car the coolant is cool therefor it's more dense, then as it warms up it will expand enough to turn your light off.
I've had a slow leak in mine for a while (still trying to chase it down) but when it first starts to get low that's what my car will do. I just add a little and it goes away.
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