2009 Kia Rio Experiencing Black Exhaust Smoke, Rough Engine Performance, and Increased Fuel Consumption

Hey your car's throwing quite the tantrum, ain't it? I had a similar fit with my 2012 KIA Forte not too long ago. It was spewing out clouds of black smoke, the engine light was disco-dancing, and let me tell ya, it was as thirsty as a camel in the Sahara. Power was dipping lower than my grandma's Sunday roast, and it had a damn temper on start-up and idle, just like yours. Turned out, my hunch was right - ignition coil was the culprit! Especially, the cable connection to it. You’ve got it right on the money, it was just as much a pain as your Rio. The mechanic explained that the faulty connection was causing misfires which led to the heavy fuel consumption, rough idle, and all that jazz. The fix? Governing connection to the coil needed a makeover. New cables, a bit of tuning, and there you have it, she was up and running like old times! Just gotta find a mechanic you trust. But let's not candy-coat it, it's a serious issue. You definitely gotta get it looked into. Don't worry; it's not catastrophic, but ain't something to brush off either. Cheers!

Hey there, Wow, thanks for sharing your experience, really sounds like our cars have been attending the same drama class, eh?! Your info is putting me closer to the truth, I think. Considering my Kia Rio's symptoms and your Forte's theatrics, looks like the ignition coil connection might just be our common enemy here. I'm curious though, do you remember what you ended up having to shell out to get your car back on its best behavior? And have you noticed any other related issues cropping up since the fix? Thanks a bunch and take care!

Hey there, Your car's antics seem like an affliction straight out of a car horror flick, just like my Forte's saga! You're absolutely on the right track suspecting that dodgy ignition coil connection. Regarding the bill to tame my rebellious ride, 365 Euro got thrown into the mix. Yup, sounds steep, but it did include the cost of those new cables and some nimble handiwork by the mechanic to get it all patched up. Since then, my car's been behaving like a workshop's top student! Ever since visiting the mechanic, the 'Ignition Coil Defective or Misfiring Detected' horror story doesn't play on repeat anymore. No more black smoke, no more temper tantrums on start-up or idle, and importantly, no more frat boy guzzling of fuel! So, don't lose heart! This should give both you and your Rio a well-deserved break from all those mechanical problems. Take care, and keep us posted! Cheers!

Hey! Your response is a breath of fresh air amidst all the fumes my car's been kicking up! Sounds like your Forte and my Rio are siblings in this automotive ordeal. Hearing that 365 Euro got your car back to being a model citizen gives me hope. I'm feeling more prepared now to face those tools and oily hands. The overall improvement in your car post-repair definitely makes it sound like a penny well spent, despite the initial shock! Your ‘parenting advice’ to maintain the peace between me and my car is worth its weight in gold. Thanks for taking the time to share your knowledge and experience. You've provided a much needed roadmap. I'll keep everyone posted on the developments. Cheers and take care!