Can a tick cause a misfire?
Can a tick cause a misfire? A failing coil will generally not make a ticking sound, however a failing or intermittent coil may cause the motor to run sluggish a bit if the misfire continues to happen. When this happens, the ticking sound you may be hearing could be valve train parts touching metal on metal as a result of lack of oil lubrication. Is it OK to drive an engine that is misfiring? Instead from that, misfires can damage other sensors in the engine like the O2 sensors. So, I would never recommend driving an engine that is misfiring...