Engine Coolant Thermostat Replacement for Pontiac Firebird 1999

Engine Coolant Thermostat Replacement 3.8L

1. Remove the water outlet (2). Refer to Engine Coolant Thermostat Housing Replacement .
2. Remove the engine coolant thermostat (3).

1. Install the engine coolant thermostat (3).
2. Install the water outlet (2). Refer to Engine Coolant Thermostat Housing Replacement .

Engine Coolant Thermostat Replacement 5.7L

1. Remove the water outlet. Refer to Engine Coolant Thermostat Housing Replacement .
2. Remove the thermostat.

1. Install the thermostat.
2. Install the water outlet. Refer to Engine Coolant Thermostat Housing Replacement .