2006 Mercury Montego Jerks Faster Than I Am Accelerating

From the sound of it, your transmission could be ailing in two places, either the bands or clutches. Normally, when the transmission is operating correctly, the clutches are responsible for engaging and disengaging transmission and the engine. They work with the bands which tighten up, causing them to actuate.

If the bands are tightening unequally then it is quite possible for your Montego to shoot backward faster in reverse than in forward simple because the band that actuates the reverse gear may be tightening up and more quickly and surely than the band that tightens up for first. The forward band may be slipping.

The clutches, like the bands, may be engaging more quickly in reverse than in forward and that could also cause your Montego to operate as you describe.

Either way, you are looking at some major work for the transmission that will likely mean a major rebuild or replacement is necessary because it is possible other systems that work with the clutches and bands could also be worn out.

In any event, the repairs will cost between $2,250 and $2,800.