2000 expedition 5.4 engine miss

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Mar 31, 2012 | 10:18 PM

Joefish1943

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Joined: Apr 2002

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From: US of course

2000 expedition 5.4 engine miss

I have a miss when I'm in OD or when I try and accelerate or when I lug it. It sputters until it downshifts. I went to AZ and the scanner said it was a miss in #8.
I replaced the intake manifold 4000 miles ago. and also replaced the spark plugs and put in excel coil packs. and i replaced the No. 8 injector today, its still has the sputtering in OD. What should I try next ?
Should I replace next, the spark plug, coil Pack or fuel filter.

Thanks in advance.

Mar 31, 2012 | 10:53 PM

alwaysfords41

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Some here don't like the Accel coils and claim early failures when using them.

Mar 31, 2012 | 11:13 PM

98expeditionXLT

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Joined: Aug 2001

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From: MA

Stick to Motorcraft and did you replace the boot on the coil pack and pack it with dielectric grease?

Apr 1, 2012 | 12:53 AM

Joefish1943

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Junior User

Joined: Apr 2002

Posts: 50

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From: US of course

No I didn't use the grease you mentioned, I still have the motorcraft coils I took out. I think I will take the Accel coil off. I bought the Accels because the price was right and I thought they were a top of the line brand.