Circuit Description

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2002 Saturn Vue, 2002 Pontiac Montana, 2002 Pontiac Aztek, 2002 Oldsmobile Silhouette, and 2002 Oldsmobile Bravada. However, it is still accessible from the selected car via links, so may be relevant.

The fuel manager/filter assembly consists of fuel heater, water-in-fuel sensor, and a filter. Filter contains coalescer, the device that combines small droplets of water into larger ones, and filter/separator. As fuel enters filter, fuel passes through fuel heater. Heater contains a thermostatic switch that opens or closes to turn heater OFF or ON, depending on temperature of fuel. Fuel then passes through filter and water coalescer, where droplets of water in fuel combine into larger drops that fall into water reservoir in filter. When fuel flows from fuel manager/filter assembly to injection pump, fuel is clean and free of water. Fuel heater is operated by a built-in thermostatic switch. Thermostatic switch completes circuit for fuel heater element when thermostatic switch senses a temperature below 46°F (8°C).