Coil pack on one of your spark plugs may need to be changed. Have OBD II scan done to determine which one.
will the transmission causes my 1999 ford expedition to bog down & sputter when accelerating the 4.6liter engine.
Could be accelerator pump if carb.Could be a "sloppy" timing chainIt also may be a misfiring spark plug or two. This answer depends on the conditions of the hesitation. There are many possibilities. or it could be a vacuum line that may be sucking in air or your distributor may not be advancing upon accelerating causing the vehicle to fall on its face
The # 2 engine cylinder is misfiring firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Ford Expedition
The number four coil is misfiring. Thats the one one the passenger side, all the way in the back.
Bad ground or alternator stating to go bad.
it means you need a new spark plug and probably a new coil for number 7
Make sure it's not in 4 wheel drive.
Bad plugs, wire , or coil pack.
Auto Zone will check your computer codes for FREE. Then go from there.
what causes hesitation on ford f150 truck
I had the same problem on mines 98 Ford Expedition 4.6L . It ended been a simple tune up of plugs and wires. If it is a 5.4L it maybe a bad coil pack. I would switch the bad coil with a good one and go from there.
Ford Expedition was created in 1997.