Fuel Pump Location In Tank

WARNING: This page is about a different car, the 2001 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.

The ejector is used to secure the supply of fuel to the pump. Thanks to it being located in the reservoir, the pump is guaranteed a flow of fuel even during cornering and acceleration with small amounts of fuel in the tank. The pump and motor are encapsulated and cannot be dismantled for repair.

A non-return valve on the pressure side of the pump, located in the connector nipple in the pump cover, prevents the pressure in the fuel line from dropping as soon as the engine is turned off.

A modified fuel pump unit has been introduced on M01 cars to reduce exhaust gas emissions when starting. The fuel pump is equipped with a non-return valve at the ejector inlet to ensure the level of fuel in the pump reservoir is maintained as high as possible, even when the level in the tank is low. This allows the starting fuel pressure to build up faster and provides more reliable starting and consequently reduces exhaust gas emissions. A fine-mesh filter is located at the inlet to the non-return valve to protect it from dirt.