Shakes when accelerates

It could be an engine miss. If the check engine light is on, have the computer scanned for codes. If it hasn't had a tune up in a long time, it may need plugs, wires, cap. Also, make sure it is getting good fuel pressure. On our home page you will find a DIY section for checking fuel pressure. Check that as well as the fuel filter. If everything like that is good, then start checking u-joints and drive line issues.