Hi all, long time reader, first time poster.
Wife was driving my 2012 Kia Forte, up a looooong mountain grade, check engine light came on and engine quit shortly after. She managed to glide to the side of the road.
When I showed up I used my handy ELM327 to check diagnostics, and I had P0304 (cylinder misfire) on cylinders 3 and 4. Pulled the coil packs and spark plugs. This is what the plugs looked like, 1 2 3 4 left to right.
https://photos.app.goo.gl/LuWz4XdJESLKWXk67
3 and 4 look different, my best guess is that it started to knock/detonate going up the long grade, high load, low rpm, and the knock sensors shut it down. Which is strange though as it wasn't hot out (mid 50s) and I thought newer cars weren't affected by this. Bad gas maybe?
So I swapped 3 and 4 plugs with 1 and 2, cleared the codes and away it went. Bought 4 new plugs at the next town, drive it 200 miles and checked again:
https://photos.app.goo.gl/NYgnFmxQSSBjs6FY7
Better, but cylinder 4 still looks off. Maybe an injector issue?
The car has 100k miles and has been very reliable.
Any ideas?
Wife was driving my 2012 Kia Forte, up a looooong mountain grade, check engine light came on and engine quit shortly after. She managed to glide to the side of the road.
When I showed up I used my handy ELM327 to check diagnostics, and I had P0304 (cylinder misfire) on cylinders 3 and 4. Pulled the coil packs and spark plugs. This is what the plugs looked like, 1 2 3 4 left to right.
https://photos.app.goo.gl/LuWz4XdJESLKWXk67
3 and 4 look different, my best guess is that it started to knock/detonate going up the long grade, high load, low rpm, and the knock sensors shut it down. Which is strange though as it wasn't hot out (mid 50s) and I thought newer cars weren't affected by this. Bad gas maybe?
So I swapped 3 and 4 plugs with 1 and 2, cleared the codes and away it went. Bought 4 new plugs at the next town, drive it 200 miles and checked again:
https://photos.app.goo.gl/NYgnFmxQSSBjs6FY7
Better, but cylinder 4 still looks off. Maybe an injector issue?
The car has 100k miles and has been very reliable.
Any ideas?