1985 Pontiac Firefly Engine: 1L L3 GAS; 180 Degree; Alternate Temperature;. 1986 Pontiac Firefly Engine: 1L L3 GAS; 180 Degree; Alternate Temperature;. Part Type: Engine Coolant Thermostat. 1987 Pontiac Firefly Engine: 1L L3 GAS; 180 Degree; OE Temperature;.
