FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Fuel Lift Pump Flow Check

1. Install a scan tool.
2. Disconnect the pipe at the lift pump outlet fitting.
3. Connect a hose at the lift pump outlet fitting and place a 1 liter (0.946 quart) container at the hose in order to collect the fuel.
4. Using the scan tool, command the lift pump on and measure the amount of fuel.
^ If there is more than 0.24 liter (1/2 pint) in 15 seconds, refer to Fuel Lift Pump Pressure Check. Component Tests and General Diagnostics
^ If there is less than 0.24 liter (1/2 pint) in 15 seconds, refer to Fuel Lift Pump Suction Line Check. Component Tests and General Diagnostics