1995 Buick Park Avenue Owner's Manual - Page 231

L36 Engine Accessory Belt B F A- 3800 Supercharged (L67) Engine (Option) Your Park Avenue Ultra has a 3800 Supercharged engine. Buick chose supercharging rather than turbocharging because Buick emphasizes smooth, refined power. The Supercharger is a device which is designed topump more air into the engine than it would normally use. This air mixed with fuel creates increased engine power. Since the Supercharger is a pump and is driven from an engine accessory drive belt, increased pressure is available at all driving conditions. The powertrain control module (PCM) works with a vacuum control to regulate the increased pressure required during specific driving conditions. When this increased pressure or boost is not desired, such as during idling and light throttle cruising, the excess air that the Supercharger is pumping is routed through a bypass. All of these controls working together provide high performance character and fuel efficiency in the 3800 V6 Supercharged Buick engine. The power steering pump uses a remote reservoir mounted on the throttle and cruise control cable bracket. See "Maintenance Schedule" in the Index for when you should check the fluid. C The 3800 (L36) engine uses an engine accessory belt. This diagram shows the features connected by thl: belt routing. See "Maintenance Schedule" in the Index for when to check the belt. A. Power Steering B, Alternator C. Air Conditioning D. Crank E. Coolant Pump F. Tensioner 6-11