Fuel Lift Pump Suction Line Check

1. Remove the fuel tank cap and repeat the Lift Pump Flow Check.
^ If the flow is more than 0.24 liter (1/2 pint) in 15 seconds, replace the defective fuel tank cap.
^ If the flow is less than 0.24 liter (1/2 pint) in 15 seconds, go to the next step.
2. Separate the lift pump suction line from the fuel sender.
3. Use an additional hose in order to connect the suction line to a source of clean fuel.
4. Repeat the Lift Pump Flow Check.
^ If the flow is more than 0.24 liter (1/2 pint) in 15 seconds, remove the fuel sender and check for a restriction.
^ If the flow is less than 0.24 liter (1/2 pint) in 15 seconds, Go to step 5.
5. Check the lift pump suction line for a restriction.
^ If a restriction exists, repair and recheck the lift pump flow.
^ If no restriction exists, replace the lift pump and recheck the lift pump flow. Refer to Fuel Lift Pump Replacement
6. Attach the lift pump suction line to the fuel sender.