5 - Electric Fuel Pump Pressure

5. Electric Fuel Pump Pressure







Purpose:
To determine if there is sufficient fuel pressure for starting.







Recommended Procedure:
First verify that there is fuel in the tank and battery voltage going to the fuel pump, using a digital multimeter connected between the two circuits going to the pump. Battery voltage will be present for approximately 20 seconds after the ignition key is turned on. If no voltage is present, go to Pinpoint Test FK. Tests FK: Fuel Pump Monitor/Control

Econoline






Remove the doghouse cover and remove the 1/8-inch pipe plug from the top rear of left head. Install Gauge (0-160 psi) Bar 014-00761 or equivalent. Measure pressure in crank or run. If pressure measures below specification (30 psi), perform test step 8a in Performance Diagnostic Procedures. Performance Diagnostic Procedures

F-Series






Remove the 1/8-inch pipe plug from the top front of the right head. Install Gauge (0-160 psi) Bar 014-00761 or equivalent. Measure pressure in crank or run. If pressure measures below specification (30 psi), perform test steps 8a-d in Performance Diagnostic Procedures. Performance Diagnostic Procedures