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Home >> Saab >> 1986 >> 900 Base, 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Air Cleaner - Thermostatic >> Operation >> Turbo Models

Turbo Models

NOTE: Preheater hose must be clamped to boost pressure regulator housing to provide sufficient battery clearance.

Incoming air below 23°F (-5°C) causes the air door to admit air from the exhaust manifold only. The thermostat mixes fresh and heated air up to 41°F (5°C), when the fresh air duct becomes fully open.