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Old 04-23-2004, 22:24   #1 (permalink)
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TSB 11/04 - AU 250kw Fuel Starvation

Subject/Concern: Fuel starvation on AU T3 sedan

Models: AU Sedans with 220 kw and 250 kw engines

Description:
Some vehicles experience fuel starvation under hard acceleration or when accelerating out of comers. The symptoms usually manifest as a momentary, severe loss of power. A high flow fuel pump is now available for these vehicles.
Reimbursable within the provisions of the Warranty and Policy Manual.

Concern Description:
Some vehicles experience fuel starvation under hard acceleration or when accelerating out of sharp corners or roundabouts. The symptoms usually manifest as a momentary, severe loss of power. A high flow fuel pump is now available for these vehicles through FCSD (Ford Customer Service Division) and is supplied on a change-over basis only, as fuel pump and sender unit. The change-over pump should be used only on those vehicles tha experience a genuine fuel pump failure. Dealers intending to make a warranty claim against the fuel pump must first obtain prior approval.

Service Action:
When a vehicle in the model range detailed above, is presented with a suspected fuel starvation problem, please cant' out all necessary inspections to confirm that the problem is due to fuel pump failure and not some other caus (please also ensure that the pick-up strainer is not clogged). If fuel pump failure is confirmed, obtain prior approval and replace pump and sender with change over unit.

Service Procedure:
Road test the vehicle and confirm that the symptoms described in the precis are present. During road test, the fuel level should be below half tank as the symptoms are more prevalent with low fuel condition. If the symptoms are
present, check the integrity of electrical connections at the fuel pump and the integrity of the fuel pump relay activating circuit. A fault in the fuel pump relay activating circuit will be indicated by Code P0230 displayed during the PCM Self Test. If the integrity of power supply to the pump has been confirmed, remove the fuel pump as described in Section 10-2 of the AU workshop manual, and inspect the pick-up strainer. If the pick-up strainer is clogged, replace strainer and inline fuel filter and road test vehicle to ensure that the symptoms have been eliminated. If the pick up strainer is clear, replace fuel pump assembly with high flow pump (refer to Section 10-2 of the AU Workshop
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