Spark Plug Investigation Can Their Age Cause Acceleration Jitters?

In addition to engine troubles, damaged ignition components can cause rough idling. Like spark plugs, over time the ignition coil can begin to breakdown causing ... Also, have the spark plugs been replaced? I presume there are no check engine lights or codes? A weak spark plug or coil can misfire under load. Yes, bad spark plugs can indeed cause a car to shake. When spark plugs wear out or malfunction, they fail to ignite the fuel-air mixture properly. Compression's good. 10% between the high and low reading is good. Have you checked your spark plug wire or spark Plugs? That will cause your ... Having the spark plugs misfire due to being worn out can cause jerking or shuttering while you accelerate and drive. To prevent any misfiring, ... However, in 3rd and 4th, with cylinder pressure getting much higher under boost, you need those plugs gapped tight to ensure the spark makes it ... 3 of the eight spark plugs were shaking on my 5300 Vortec causing a misfire and hard starting. The plugs were shaking/vibrating like this ... Similarly, worn-out spark plugs can degrade your engine's performance, causing misfires and shakes. Replacing them might restore your ... ... on the odometer, original timing belt, not sure about spark plugs. ... can be done to try to isolate which side may be causing the vibration? The most common reason for a car jerk while accelerating is that one or more of your spark plugs may be going bad, which will lessen performance if the problem ...