You need to verify if it is the engine or transmission that is causing the jerking.
Misfiring of the engine can result in the jerking as well.
For transmission, check the fluid level and condition. Ensure the throttle pressure cable is adjusted correctly.
For engine, check the spark plugs and related parts, eg, plug wire, distributor cap and rotor. Check the fuel filter for clogging.
Tuesday, October 19th, 2010 AT 8:10 AM