Try a basic tune up. New spark plugs, wires, cap and rotor. When the vehicle is in first gear and you are accelerating, that is when the most load is on the engine. It sounds as though under a load, you are losing your spark because it is arcing out where it should not be.
will the transmission causes my 1999 ford expedition to bog down & sputter when accelerating the 4.6liter engine.
could be a bad plug
look to see if your intake manifold is gummed up with residue
check ditributor cap and rotor and spark plug wires
A malfunctioning battery can't provide enough power to your ignition system when the motor is idling can cause sputtering. If there is not enough gas, that can cause your vehicle to sputter. If the spark plugs fail to fire will also cause your vehicle to sputter.
Cause it does
If its clogged
No
Yes
Friction in the transmission system may cause whining noise when a car is accelerating. A poor engine or clutch assembly may cause the excess friction in the transmission system.
It may need a tune up.
There are several things that can cause your 2002 Ford Taurus to hesitate when accelerating. A dirty air filter will cause the problem.