02' cavalier knocking loud after tuneup. Starts and runs perfect except loud knock. Afraid to drive fearing piece of broken sparkplug ruin car. Went in with magnets to remove any metal left behind ...
Is this the underlying problem or a symptom of something else?? I have a 99 Ford Expedition that has a knocking and pinging problem. Two different mechanics have narrowed it down to the ignition ...
My Kia Sportage has been running on only two of 4 cylinders. The 2 plugs don't fire at all even when they are replaced. The coil works perfectly if they are interchanged. Wires are in perfect ...