Flashing Check Engine Light? Bad Spark Plugs and Ignition Coils Could Damage the Catalytic Converter

Shop for New Auto Parts at 1AAuto.com https://1aau.to/c-109-cA Your check engine light is flashing? When the light flashes, it's telling you there is a serious problem with your car or truck's engine. It's most likely misfiring, sending unburnt fuel into the catalytic converter. Taking too long to fix this problem will damage your catalytic converter! In this video, Andy explains how worn spar! plugs and damaged ignition coils will cause your car or truck's engine to misfire! 0:00 Flashing Check Engine Light? Bad Spark Plugs and Ignition Coils Could Damage the Catalytic Converter 0:45 Failed Spark Plugs Will Damage Your Vehicle's Ignition Coils 2:11 Misfires Can Send Unburnt Fuel to the Catalytic Converter, Damaging It 2:46 SUBSCRIBE! | Shop 1AAuto.com Link Below! This repair was done on a 2013 Hyundai Elantra GLS 1.8L Sedan 4-Door FWD and the process should be similar on the following vehicles: 2011 Hyundai Elantra 2012 Hyundai Elantra 2013 Hyundai Elantra 2014 Hyundai Elantra 2015 Hyundai Elantra 2016 Hyundai Elantra 🔧 List of tools used: • Complete Metric Socket Set • Ratchet • Socket Extensions • Inline Spark Tester • Spark Plug Socket Subscribe:    / @1aauto   Check out our playlist: Driveway Diagnostics!:    • Driveway Diagnostics!   📱 Download the 1A Auto Repair App for more videos, torque specifications, and car repair information: https://1aau.to/appdownloadyt 🚗 For More Info visit us at https://1aau.to/h-dZN ⚠ DISCLAIMER: While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.