It is important to have a well working car while on the road. The lack of fuel getting to the engine would cause hesitation on acceleration,
Mabey you are low on gas or mabey a ring of som sort for ex: Piston ring
check vacumn tube lines for cracks or disconnections...bank of vacumn lines are back of engine, right side, by computer modules.
Could be timing belt/chain is worn
Torque converter going bad.
Probably the increased load on the engine caused by the power steering pump.
Engine sag, stumble, hesitation, rpm flare, transmission shifts up and down, etc.Engine sag, stumble, hesitation, rpm flare, transmission shifts up and down, etc.
When you press your foot on the gas pedal, it tells the car it needs more gas. The engine then has to take in extra gas. Once it has the extra gas, it must compress the gas, so the gas will have a higher pressure. Once the gas is pressurized, a spark plug goes off, causing the combustion, which powers the car. The time it takes to do all of that causes the hesitation on initial acceleration.
One of the possible causes of a Pontiac Bonneville to jerk during acceleration is that the car needs a tune up. The engine misfiring can lead it to jerk as you accelerate.
A Hose from the pollution pump was not fastened properly. Back up pressure on engine helps I still have some hesitation But I can live with it for now
During acceleration? I'm not sure. But when both idling and acceleration the engine's combustion can cause a lot of vibration in the steering wheel if you are in an older vehicle.
valve seals. Can be replaced with engine in truck & heads do not have to be removed.
Probably clogged injectors. I recommend using a few tanks of Shell's Highest Octane, and this will clean them, then go bback to your regular octane gasoline. David