99 f150 4.6 4x4

80

Asked by jdykes109 Jan 26, 2013 at 08:57 PM about the 1999 Ford F-150 XL 4WD SB

Question type: Maintenance & Repair

missing under load, replaced coil packs ,wires, plugs,fuel filter. still missing

2 Answers

12,265

Have you done a fuel pressure test? It could still be the fuel pump. It could also be your transmission.. Transmission problems can often feel like a misfire.

74,270

May have an electronic spark advance problem. Check the ECU.

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