- po171,174 intermittent,5.4,1999
- 4.6 bolt pattern
- Octane Boost Additives
- 5.4 Engine stumble and no code
- 01 4.6 TB upgrade
- 5.4 plug repair kit available
- new heads?
- 99 E150 #2 #8 Misfire
- 4.6 liter 3 Valve Motor
- Pinging
- anyone had their rusty manifold studs replaced?
- ignition coil f
- po356 ignition coil f prim. second. circuit malfunction
- coolant system flush
- Base Idle setting on 4.6L
- 4.6 / antifreeze
- Good value?
- antifreeze/sparkplug hole
- High idle on 4.6
- How big is the problem?
- 5.4L Possible Service
- another missfire ?
- 5.4 L misfire at operating temp.
- 5.4 Cams
- #3 coil pack
- looking for an extra honing torque plate for 4.6
- Better heads
- firing order
- Low Fuel Pressure = Miss ?
- 5.4L Shudders under load/rough idle