Originally Posted by
woodoctor38
Thanks for the info. I guess i will have to wait till the coil goes bad to find it .In my 99 f250 they just died it was alot easier to find .Thanks again !!
Start pulling injector power terminals and see if u find a cylinder that ain't up to snuff. I've done this several times to find a problem. Also look for any vacuum leaks and clean the MAF with MAF cleaner.