possibly head gasket, water pump or coolant leak.
it could either be your thermostat is bad, the radiator is bad, or you could have a blown head gasket.
It could be a Head Gasket, Thermostat, water pump, bad radiator or just needs coolant. start with the cheapest which is a thermostat.
Stuck closed thermostat, cracked head, bad head gasket, low on coolant are some possiblities.
Low of coolant, thermostat is stuck closed, radiator is clogged, cooling fan is not working, or blown head gasket.
To replace the thermostat on a 1988 535i, first locate the top radiator hose and remove the end connected to the motor. Take out the old thermostat and use gasket cleaner to remove the old gasket. Then replace the gasket and thermostat exactly as it was when it came out. Tighten up the radiator hose over the thermostat.
Thermostat, blocked radiator, leaking hoses, rusted impellers on the water pump and the worst possibility, a leaking head gasket/cracked head.
Thermostat, blocked radiator, leaking hoses, rusted impellers on the water pump and the worst possibility, a leaking head gasket/cracked head.
The first step in how one can replace a thermostat in a 2001 Cadillac DeVille is to remove the housing which surrounds the old thermostat. The radiator hose will need to be removed and drained and then the thermostat can be removed. Remove the old thermostat gasket and then insert the new thermostat as well as the new gasket. Attach the radiator hose and place the drained fluid back into the radiator filler cap.
If you follow your upper radiator hose from the radiator to the engine you will see it is connected to a outlet that is bolted to the intake manifold. This is your thermostat housing/coolant outlet. Drain the coolant from your radiator, at least half way. The remove the upper radiator hose. Remove the thermostat housing. Now you can remove the thermostat. Make sure you clean all the old gasket off of the the housing and manifold. Then install the new thermostat, a new gasket )I also recommend using some rtv or gasket sealant to prep the gasket) and the thermostat housing. Then hook your hose back up. remove the radiator cap and refill your radiator. Make sure to use a 50/50 mixture antifreeze.
The thermostat on a 2004 Chevy Venture is changed by draining the radiator, removing the upper radiator hose, and unbolting the thermostat housing. The old thermostat and gasket can then be removed and replaced.
The thermostat is located inside the radiator. Remove the radiator cap and pull the thermostat up. Remember to put the replacement thermostat in the same position push the new thermostat down in the radiator. The O-ring gasket will automatically seal.
Drain the water from your radiator. Remove the radiator hose, from the thermostat housing. Remove the thermostat housing retaining bolts. Replace the thermostat housing gasket and reverse the process to install the new thermostat.