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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1335 (Engine Controls - Diagnostic Subroutines -- 6.0L (99P F450/550) Diesel) >> Hard Start/No Start Diagnostic Procedures >> 6. Electric Fuel Pump Inlet Restriction >> Recommend Procedure:

Recommend Procedure:

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Remove the fuel line to the inlet side of the fuel pump. Install the Fuel Pump Adapter 310-111 or equivalent between the fuel inlet line and the electric fuel pump. Connect the test adapter to gauge 0-762 mm Hg (0-30 in Hg) vacuum. Measure the restriction at wide open throttle (WOT) (maximum engine speed out of gear with the brakes set and the wheels blocked). If restriction is greater than 152 mm Hg (6 in Hg), there is a restriction between the fuel pump and the fuel tank. If the restriction is less than 152 mm Hg (6 in Hg), inspect both fuel filters. If the filters are OK, inspect the fuel regulator valve. If regulator and filters are OK, install a new fuel pump.

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