1995 Chevy Beretta thermostat

The thermostat is located inside a housing on the back of the cylinder head. It is not necessary to remove the radiator hose from the thermostat housing when removing the thermostat

REMOVAL:
Disconnect the negative battery cable.
Position a drain pan under the radiator, then partially drain the coolant to a level below the thermostat. Don't forget to close the radiator drain cock.
Some models with cruise control have a vacuum modulator attached to the thermostat housing with a bracket. If your vehicle is equipped as such, remove the bracket from the housing.
For4333 vehicles, disconnect the crankcase vent tube.
For4334-36 vehicles, perform the following:
Disconnect the air inlet tube from the throttle body.
Detach the surge tank line from the thermostat housing.
If may be necessary to remove the exhaust manifold heat shield bolt and reposition the heat shield in order to remove the outlet.
If replacing the water outlet, disconnect the upper hose from the outlet.
Unfasten the 2 retaining bolts, then remove the outlet. Remove the thermostat.
Remove and discard the gasket, then thoroughly clean the gasket mating surfaces.

INSTALLATION:
Install the thermostat, position a new gasket, then install the thermostat housing. Install the 2 retaining bolts and tighten to42 ft. Lbs. (25 Nm).
If removed, install the exhaust manifold heat shield retaining bolt.
If removed, connect the upper hose to the water outlet.
For4334-36 vehicles, perform the following:
Attach the surge tank line to the thermostat housing.
Connect the air inlet tube to the throttle body.
For4333 vehicles, connect the crankcase vent tube.
If equipped, install the cruise control vacuum modulator bracket to the housing.
Fill the engine cooling system with the proper type and amount of coolant.
Connect the negative battery cable, then start the engine and check for leaks. Check the coolant level and add if necessary.

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