Your engine jerks like its getting no fuel when you accelerate hills and sometimes on flat been running a while Can anyone tell what this could be?

1. Clogged Fuel Filter: A clogged fuel filter can restrict the flow of fuel to the engine, causing it to jerk or hesitate when accelerating. Check the fuel filter and replace it if it is dirty or clogged.

2. Faulty Fuel Pump: A faulty fuel pump can also cause the engine to jerk or hesitate when accelerating. Check the fuel pressure and replace the fuel pump if necessary.

3. Dirty Fuel Injectors: Dirty fuel injectors can cause the engine to jerk or hesitate when accelerating by not providing the correct amount of fuel to the engine. Clean the fuel injectors or have them professionally cleaned.

4. Faulty Spark Plugs: Worn or faulty spark plugs can cause the engine to jerk or hesitate when accelerating by not providing a proper spark to ignite the fuel. Check the spark plugs and replace them if they are worn or damaged.

5. Faulty Ignition Coil: A faulty ignition coil can cause the engine to jerk or hesitate when accelerating by not providing a proper electrical charge to the spark plugs. Check the ignition coil and replace it if it is faulty.

6. Vacuum Leak: A vacuum leak can cause the engine to jerk or hesitate when accelerating by allowing air to enter the engine before the fuel is ignited. Check the vacuum lines for leaks and replace any damaged lines.