Q: 2009 Hyundai Sonata tries to start while already on

asked by on

My 2009 Hyundai Sonata (automatic transmision) is having issues when I start it up. Sometimes when I turn the key to the ACC or ON position the car will start up as if I turned the key all the way to start. Other times when I turn the key all the way on and let it go the starter will continue to try to start the car and I can hear the starter gears grinding. The key does not get stuck and falls back to the ON position correctly but the starter continues to stay engaged and grinds. If I wiggle the key the grinding will stop. Additionally, sometimes the car will crank fine with no grinding but when I go to put it in reverse or drive the grinding will start again.

This was happening for a few weeks and the starter finally went out. I've replaced the starter with a new starter but it is continuing to do the grinding. Im thinking it may be the ignition switch or the wiring but don't know how to detetmine which one it is. Any help is appreciated.

Hey Big B. Thanks for contacting us. What you’re describing is typically associated with a damaged ignition switch. This could be due to an exposed wire, poor electrical ground or even an ignition relay that is faulty, causing the ignition to engage the starter at the wrong time. Unfortunately, trying to diagnose the root issue is not as simple without completing an onsite inspection, so you might want to have a professional mechanic come to your location to isolate the root issue so that the right repairs can be made.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. 2009 Hyundai Sonata tries to start while already on

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Have no codes, I have low rpms and car sounds like it wants to die when starting

The rough operation and inconsistent idle that you are describing could be due to a bad tank of gasoline, dirty fuel injectors, incorrect idle speed, exhaust restrictions, vacuum leaks, incorrectly installed or damaged spark plugs, a defective or clogged fuel...

Q: Tire making grinding noise while in motion

Hello. It sounds like you have a bad wheel bearing. Worn wheel bearings usually make a rotational grinding or growling noise that is proportional to vehicle speed. Wheel bearings are very important since they allow the wheels to rotate and...

Q: just got a oil change Car engine temp got really hot, oil spilled under the hood, loud screeching and smoke when the car is on

Hi there. I honestly hate hearing horror stories like this and am very sorry this has happened to you. There are several things that could have caused this issue, ranging from the oil service place forgetting to put the oil...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...