Question about 1999 Ford Expedition

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1999 hard starting expedition, with 5.4 engine

The car slowly is getting harder and harder to start. it is a 1999 4x4 expedition, with 51000 miles on it I am the original owner. It acts like no spark or no gas, then it starts right up. This is after turnning key to start several times.

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Fuel pump may be going. try this. turn key on, listen for fuel pump to run for 5 seconds. Turn key off, wait 15 seconds or until you hear relay click inside car. Turn key on again for 5 seconds and ff for 15 seconds. repeat once more. This will pressurize fuel system to 40 psi so injectors have full pressure. If it starts quickly now, you are getting bleed down through the check valve in the fuel pump or the fuel pressure regulator on the fuel rail.

Posted on Jun 30, 2009

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Posted on Jan 02, 2017

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