More than likely you have a tiny exhaust leak. Could also be a bad lifter but you would hear that at all ranges.
BAD INJECTORS ON NEWER MODELS ????
SEAT BELT
look for a shorted electric motor like window motor. when the motor contacts fail they can cause the "ticking" and it drains the power constantly, even when the ignition is off.
Putting in bad fuel can cause theÊengine to buck during acceleration on a 1999 Dodge Durango. There could also be a problem with the fuel filter or dirty spark plugs.
Start at the fuel filter. It may be clogged.
A faulty gas cap could cause the check engine light to come on but it would not cause a rough idle or engine noises. Start with having your local auto parts store read the codes. The codes will help determine why the check engine light is on.
Faulty engine
A ticking sound when pushing the gas pedal on a 2006 Dodge Grand Caravan could be caused by several issues. It might indicate a problem with the engine's valve lifters, which can create a ticking noise if they are worn or not properly lubricated. Additionally, it could be related to a loose or damaged exhaust component, such as a heat shield. Lastly, a failing accessory component, like a belt or pulley, may also produce a ticking sound under acceleration.
check the u joints.if vehicle is standard shift,i would also check the clutch
Torque converter going bad.
If your car shakes while accelerating check your motor mounts. Then check your transmission.
Replace the spark plugs and wires. Replace the fuel filter.