[quote:784717650b="Krissy"]I just bought a 1995 Cadillac STS, the guy i bought it from said it was in good condition. When i was driving it home it overheated. WHy is the car doing this. Also, when i open the door with the key to the car the alarm goes off and i dont know how to make this problem stop either. Please help. Thanks Krissy[/quote:784717650b]
Try replacing the thermostat-not it do the following below:
Have it block and pressure tested-do the block first to pinpoint a combustion leaking into the cooling system or a gas analyzer to sniff for hydrocarbons at the radiator fill neck.
Pressure test: do not do a pressure test if there's leakage at the headgasket this might cause coolant into the cylinders and lock it up or bend a connecting rod if cranked thereafter. The headgasket should be repaired before doing the pressure test.
If the block and pressure test passes check the following: Thermostat,Pressure test the Rad. cap,Clogged radiator,Fan clutch,Radiator electrical fan,collaspe hoses,water pump.
May 25, 2007 at 2:36 AM
