This could be a way of describing severe hesitation / engine misfiring.
See "Related Questions" below for the basics of what to check for...
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possible O2 sensor.
If your car shakes while accelerating check your motor mounts. Then check your transmission.
realignment, 60 to 80 bucks
Yes, you can put a CD player in a 1998 Mercury Sable. Simply take the vehicle into an automotive audio shop. They will install a single or 6 disc changed CD player while you wait. They can also modify your antennae and other audio and speaker settings.
99% likely,,,,,,,,,,, needs the fuel filter or fuel pump replaced.
Drain radiator, rinse with water or radiator cleaner, then refill. Don't forget to check the leve after running the engine a while.
jhbsdionboisfndinboid
To remove the headrest from a 1996 Mercury Sable, locate the small release buttons on the sides of the headrest posts. Press these buttons while pulling the headrest upward to release it from the seatback. If the buttons are not visible, you may need to gently slide the headrest up to access them. Once released, the headrest should come off easily.
probably the fuel pump?
Your 02 sensor. Mine had the same problem and I replaced the sensor which was the easy one on or near the exhaust manifold if my memory serves me correctly. It is only 50 bucks for one and an easy job to do :)
To remove the headrest on a 1996 Mercury Sable, first, locate the release buttons on the sides of the headrest posts. Press the buttons while simultaneously pulling the headrest upward to release it from the seat. If the headrest does not come out easily, check for any additional locking mechanisms or debris that might be obstructing it. Once released, you can lift the headrest completely out of the seat.