How do you replace a thermostat on a 1984 2.8L V6 Chevy Celebrity and is disconnecting the battery necessary?

Answer 1

To replace the thermostat in you 1984 Chevy Celebrity:

1. Drain enough coolant out of the radiator to avoid a coolant spill when you take the water outlet off. It should not be necessary to drain the radiator unless you plan to change coolant. Wear gloves to keep coolant off of your skin.

2. Remove the bolts that hold the coil mount on and move the coil out of the way. If you take any wires loose make note of where they go so they can be put back.

3. Remove the bolts that hold the water outlet on. It is not necessary to take the upper radiator hose off of the outlet, but it may be convenient to do so,

4. The thermostat is behind the water outlet. Remove the old thermostat.

Clean the mounting surfaces of both the water outlet and the thermostat housing so you can get a good seal.

5, Put the new thermostat in place, reattach the water outlet and upper radiator hose if you took it off. Refill the radiator with coolant and check for leaks.

If there are no leaks put the coil back on and reconnect any wires that were removed.

Start the engine and check further for leaks and thermostat operation. Top off coolant as necessary.