The Shaking Truth Worn Spark Plugs and Acceleration Jitters

When spark plugs approach the end of their lifespan, or become dirty, they will often fail to properly ignite the fuel in the piston chambers of ... I noticed the vibration during acceleration about 3 days after I installed the Prime Choice StrutTek strut assemblies in AND changed my spark ... 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 ... The car was running much smoother after the plugs were changed out. I drove about 150 miles in cold, Indiana weather when the the Check Engine ... No, its not normal. Is it misfiring? Bad coils will show up when its working hard. If the shaking is constant I'd guess it was a tire out of balance. It's not normal hesitation, I can literally feel the car shaking and jerking back and forth up to 7 times before it would stop and car would ... Faulty spark plugs can produce excessive vibration in the engine that can, in turn, cause the car to shake. A loose spark plug can sound like a header leak. Image. 2006 GT - 5MT - 321rwhp 333rwtq Ignition timing retarded can cause hesitation when accelerating. I ... Guess I'll have to clean the spark plugs again after the oil burns off. If oil is leaking into the cylinder and/or coating your spark plugs that will certainly cause a misfire which could cause the “vibration” that you are ...