My mother has a Lincoln LS V8 with Coil on Plug ignition similar to our 99+ 4.6 mustangs. The car currently has abogut 50,000 miles on it, over the last year she has had repeated problems with the engine runnning rough, SES light on detecting missfires always on cylinder #3 (also excessive cranking to get car to start, but only in the middle of the after initial warm up). The dealer has changed out the Coil on Plug and spark plug 4 times now, each time the problem comes back, sometimes after a few weeks other times in only a couple of days. Does anyone have any idea what else may be causing this problem, the dealership is not much help they are 50 miles away, and all they say is bring it back in and we will look at it again.
Thanks Ike
Thanks Ike