Is the thermostat bad in your 1998 Chevy Cavalier?
It is in a very bad spot at the back passenger side of the engine below/ beside the exhaust manifold. Probably have to get to it from underneath the car, and removing the metal coolant pipe that goes under the engine up to the back. There is 2 8mm? or 10mm bolts that hold the metal pipe on and the thermostat is in there. Good luck!
Have a 1998 Chevy Cavalier coolant leaks from somewhere near the front of the engine when cold but not when running or hot?
could be a blown head gasket,low on coolant, clogged radiator stuck thermostat .or your radiator cap could be bad . my 97 cavalier does the same thing and it ended up being that the engine was FULL of sludge and the coolant had little of no effect on cooling the engine.. i suggest a new car because cavaliers suck cavaliers are better then your new car and it could be the relay switch to the…