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We have exciting news! River City Tire & Automotive is now part of the GreatWater 360 Auto Care family! This means we can offer our customers even more than before; with upgrades in training, technology, and equipment that allows us to service your vehicle better, and a new 3 Year/36k Mile Nationwide Warranty. Most importantly, you’ll find the same friendly faces and top-notch service you’ve come to know and trust!

What Can Cause My Check Engine Light to Come On

Every vehicle has a lengthy list of possible warning lights or messages that pop up on its dashboard. But the one that most vehicle owners are most familiar with and hate the most is the check engine light. This notorious yellow figure signals that there is a problem, and it almost always revolves around the engine. Read to learn more about what it means for you and your car and the possible issues behind it.


Check engine lights can mean a thing for one person and something entirely different for the next. This is why technicians are put to the test every time someone brings their car in for engine diagnostics. A professional or someone with expertise will have to scan your car's coding messages to be pointed in the right direction of fixing the problem. 

Check Engine Light Behavior

  • If your light only lights up and turns off promptly, you probably shouldn't worry. Just pay close attention to how your vehicle drives to see if there are any noticeable differences.
  • If the check engine light stays on without any apparent performance concerns, you should check your gas gap. If the lid is secure, it would be best to take your vehicle to a trustworthy mechanic still. 
  • If the check engine light stays on and you do notice a lack in vehicle performance, there's no doubt that you should take it to our auto repair shop.
  • If the check engine light is on and blinking, please pull over to a safe location. It is considered unsafe to drive with the severity of engine damage, and you should call for a tow to the repair shop.  

Common Problems Behind a Check Engine Light

  • Loose Gas Cap
  • Failing Oxygen Sensor 
  • Broken Mass Airflow Sensor
  • Worn Ignition Coils and Spark Plugs
  • Defective Catalytic Converter

You might be tempted to neglect your check engine light and wait for it to "go away", but in most cases, it won't. Whenever you see this daunting yellow light, don't worry and just bring it to our Davenport auto repair shop. Come to River City Tire & Automotive for engine diagnostics!

312 E 35th St Davenport, IA 52806 (563) 386-2700
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