When your 2018 Jeep Wrangler's ECM (electronic control module), which is the vehicle's onboard computer, finds a problem in the electronic control system that it can’t right, a computer turns on your check engine light. Shop 2018 Jeep Wrangler Unlimited vehicles for sale in Plainfield, IL at Cars.com. What happens if you have a bad fuel cap? The O2 sensor sends data to the vehicle’s onboard computer to mean the noble fluctuate of air and fuel that enters the cylinders in your engine. Shop 2018 Jeep Wrangler Unlimited vehicles for sale in Chicago, IL at Cars.com. No matter what is the root cause of the Check Engine Light, we have the Jeep Certified Technicians and the certified service protocol to isolate the root problem and repair it as decisive to restore factory specifications. There are many reasons why the check engine light might come on in your Jeep, but not all of them are serious. A new engine option is available on the JL. Research, compare and save listings, or contact sellers directly from 58 2018 Wrangler Unlimited models in Chicago. Luckily, to replace a gas cap isn't expensive. Check for clearnaces and proper placement of gaskets for coverage and protection of vehicle finish. So what happens if I don’t replace your O2 sensor? A bad O2 sensor can also cause a car to fail an emissions test. When your check engine light comes on, this could be as easy as tightening or replacing your gas cap. 1997-2006. It can be as clear as your gas cap being loose or as hazardous as engine knocking. Just wait and see if it asks up again.... Might be wasting your time at a dealership if the CEL isn't on... Might give you the "cant replicate the problem" spiel. Some owners ask if spark plugs cause the check engine light to flash? The check engine light is part of the onboard diagnostics system, and displays in a few different ways. I will definitely take it in to the dealer if the light comes back again and will send you a message then. The 2018 Jeep Wrangler is powered by a 3.6-liter V-6 with 285 hp and 260 lb-ft of torque; a six-speed manual or eight-speed automatic transmission are available. But take a deep breath and realize the light coming on doesn’t mean you have to pull the car over to the side of the road and call a tow truck, but it is recommended that you get your 2018 Jeep Wrangler checked as soon as probable. The 2018 JL Wrangler has a prominent vent on the front quarter panel right behind the fender; Door handles on the JL operate by pulling the handle out. The gargantuan news, Crown Chrysler Dodge Jeep Ram Greensboro offers complimentary multi-point inspections and free diagnostics, in most cases, to help find out the cause of your check engine light. This light illuminates in either an amber or red color and is part of the diagnostics system found on your vehicle. This can absolutely be the cause. 2020-2021. If the engine light comes on due to a competent concern, you risk damaging your car further by not repairing the issue prudent away. 2018 Jeep jl (all white) has paint turning yellow from excess heat in the engine area. One of the most routine and frequent cause is that your 2018 Jeep Wrangler gas cap is loose, damaged or missing. 2018-2021 Jeep Wrangler JL Accessories & Parts. The gas cap for your 2018 Jeep Wrangler serves multiple purposes. Pat's Garage 236,110 views. Worn spark plugs and plug wires can cause clogged catalytic converter or damage to ignition coils and O2 sensors, principal to more expensive repairs. Likewise, if your catalytic converter is going factual, and you did a lot of stop-and-go driving, that may have turned on the check engine light due to the high usage of the converter. When this happens, the Check Engine Light turns off, and you can leave the service center knowing that your Jeep issue was fixed. However, that is the limitation of the Check Engine Light – it won’t tell you what exactly is unsound nor what to do about it. Whatever it might be, it is left for a professional to figure out. One of the most typically misunderstood lights or indicators in your 2018 Jeep Wrangler is the check engine light. Published on Nov 16, 2018 Check engine light came on. Jeep Wrangler YJ Showcase. A bad, classic or dirty spark plug can cause the engine to misfire. Find your perfect car with Edmunds expert reviews, car comparisons, and pricing tools. 2007-2018. From the crankshaft to the pistons and the spark plugs, all of these parts play a significant role in the way your 2018-2019 JL operates. Route & hide the Roof Level LED Light Bar Power Harness down the Vehicle’s A-Pillar behind ZROADZ Mounting Bracket. Without a car battery, your car won’t start, light up the road ahead, play the radio or charge your phone. It could be anything from a detrimental sensor to plug wires needing to be changed. If the cause is a minor issue, such as a loose gas cap, it should be able to travel to work. 3710 W Wendover Ave Hopefully, the article of 2018-2020 Jeep Wrangler Oil Change Required Minder Oil Life Light Reset can solve your problem. This blinking light usually suggests a threatening engine misfire allowing unburned fuel to be discarded into the exhaust system. Areas affected include front grill, right front fender. This is typically indicated by a steady glow of the check engine light. An aftermarket alarm, exhaust or extra item can wreak havoc on your 2018 Jeep Wrangler if it’s not installed appropriately. The 3.6L Pentastar V6 in the new Wrangler JL utilizes the Electronic Start Stop System (ESS). Since there are hundreds of usable OBD codes, there are also hundreds of usable reasons for the light, including: This is why it is important for someone who does not have a lot of automotive knowledge to not assume what a code means. Make the most of your shopping experience by creating an account. Today’s car batteries last much longer than they did many decades ago, and they don't really require maintenance. Good Luck! Every Jeep Wrangler has a vacuum system that performs a extraordinary fluctuate of functions. The Code is very vague since you’ll never know what it means unless you have the service manual or an OBD scanner that can give you more detail about the code. 2007-2018. The check engine light on your 2018 Jeep Wrangler will frequently shut itself off if the issue or code that caused it to turn on is fixed. My check engine on my '01 has been on since I bought it. If you drive over that amount and the light is still on, you will need to bring it in to Crown Chrysler Dodge Jeep Ram Greensboro so the light and code can be double-checked and reset. If the problem is ignored or you continue to drive, this can spread to the spark plug wires, catalytic converter, or ignition coils which can lead to a incredibly costly repair. If your gas cap is departed or has a ruptured seal, you can lose fuel through evaporation which will result in more trips to the pump. There are also a number of relatively bargain code readers that are designed for do-it-yourselfers, should you designate that route too. That’s where we come in; Crown Chrysler Dodge Jeep Ram Greensboro provides a Check Engine Light Diagnosis Service that isolates the core problem and gives you a recommendation on what to do next from a Excessively Qualified Service technical. Your mass airflow sensor (known as MAF) needs to be replaced. 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