I jus bought a 91 firebird formula a few days ago and the day after i bought it I noticed there wasnt any coolant fluid in the car. My boyfriend is trying to fix it but now the fans wont turn on. He's trying to find the fan relay switch and sensor. any help would be greatly appreciated as were trying to learn our ways around this car. Thanks!

First off, Welcome to the Source!

Can you give us a little more information about the car, i.e. size engine, mileage estimate. Check the water pump and see if there are signs of a leak from the weep hole on the bottom. Check the radiator as you fill it, I know this can be hard to do at the same time, and see if there are any leaks in the hoses or the radiator itself. Make sure all of the hoses are not cracked and the clamps are tight.

Matt

the fan switch 99% of the time is located between cylinders 6 and 8 on the passenger side head. not to be confused with the knock sensor which is located on the block.

check the thermostat too, i melted mine and almost blew the engine, but that was because i hose blew up and no coolant was getting to the engine. you would know if your hoses were ripped or melted or whatnot becuase the coolant would come spewing out. check also just to see if everyhting is plugged in and the wires arent cut

I agree with everything above...but fans or not, if you found the car with no coolant in the system at all, you might have a bigger problem!

I guess if the fans weren't engaging then the entire contents of the cooling system could boil off, but I can't see anyone letting that happen because that would take awhile! (but then again, never underestimate the stupidity of the other guy!)

As said above, if the hoses were leaking, then you would most likely notice it. But do check around the heads, and the water pump. Also check your oil and make sure it doesn't have a funny white color, kind of like milk. ( That would indicate a coolant leak into the oil, usually caused by a blown head gasket)

Good luck!