Replaced ignition coil on cylinder 4 (easy to get to) about 3,000 miles ago (Code 304). Replaced the front spark plugs as long as I was there.
Now I got a code 301 (misfire cylinder 1). Miserable to get to. Took me 2 hours to gain access. Could have done it in 30 minutes if I knew how to un plug a dozen or so electrical connectors. Some you pinch on the sides, som e on the bottom, some you push a pin, some you pull a tab, on and on. Why can't they make them similar.
Anyway, the diagnosis is simple. Take the back three coils (difficult to g et to), swap with front three and see if code 301 becomes 302. These coils are difficult to find for some reason. All local parts stores near Portla nd Oregon (Napa, Carquest, Knecht, Autozone, O'reilly etc.) needed about 3-
4 days to find me one. The dealer promised 7 day delivery, or, I could dri ve to Washington where a dealer had one.I called my service manager at KIA and asked him why they are so rare and w hether there was any outstanding bulletin on this coil. No bulletins and t hey are not stocked because they never go bad. EXCEPT ON MY CAR.
Wife and I are pussycat drivers and the car runs like a top. Has never ove rheated etc.
Any idea why I might be going through coils? I feel like I should keep a s pare in the glove box.
All comments appreciated.
Ivan Vegvary