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Re: The Ignition light came on .....
You can reset the computer simply by unhooking the battery for about ten minutes... if the radio requires a code make sure you know it... but it will come back on if the problem is still there... autozone will read the codes for free
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OK I would recommend going to a local auto parts store that has a scan tool for use or will do free scans on the car. This device allows you access to the computer stored codes to help pinpoint the failure. A loose gas cap will usually show up as an EVAP Leak code. If those are the only codes that you see then they can be deleted with that scan tool and the light should go off. If the light comes back on again then you have other issues that might need to be corrected. I also believe what you are seeing is the check engine light but I would reference the service manual for clarification on that. Although this light will come on if you leave the gas cap loose, there remains many other reasons this light can betriggered to come on.
A faulty fuel filler cap will cause a fault code in many cars. If someone told you the trouble was the fuel filler cap and you replaced the faulty filler cap with a good fuel filler cap, you have corrected the problem. It is not a 'show stopper' fault so the light reset itself.
I know this is an old post... but I had this issue now. I wanted to put my experience out there. I have this car and sure enough, the gas cap light went off. I checked the cap and it was on perfect.. Then sure enough a couple days later my check engine light popped up. They ran my car in the system for the engine light and sure enough there were two evap codes that went off.. They thought it was just the gas cap but then looked into Chrysler known issues and they told me there was a service order for this model car where they need to replace two parts.. one is some kind of filter and something else (didnt pay attention to the name).. but I go back tomorrow to get it fixed. They set an hour appointment as its supposed to be an easy fix. Im hoping it improves gas efficiency some at least, too.
you can reset it with a code reader. However, the light will go out on its own after you fix the fault. It may take many start stop cycles. The computer will run tests to determine the cap is holding pressure. When it is satisfied that the problem is fixed it will turn off the light. Be patient. This will only happen if you replaced with the correct gas cap.
this is a very common problem. but mostly the gas cap just wasn't tightened properly. The check engine light will reset itself if the computer detects the problem has been fixed. This may, however, take many start stop cycles. Many auto parts stores will check your computer for codes at no cost. This will let you know if you are fixing the correct problem
Best not to ignore the check engine light because it also can indicate a serious running problem just as it is indicating a pollution problem now. I don't trust folks that have 'snap' answers for a given problem without any kind of testing (the fuel cap). This problem can be caused by split vent hoses or fuel filler hose, sensors that leak or read incorrectly--the list goes on. Smoke generator tests can help track this down but require intelligent analysis to replace or repair the correct component. Finding someone like this to take the time to be at least fairly sure of a cure before loading the car up with unnecessary parts is a rare find. Good luck!
Because your vehicle is a 2008 I feel it shouldn't be anything to pressing but still take some precautions.
What alot of people don't know is sometimes if the gas cap is not put on tight enough a little air might get in or your gas pump might have to work a little harder because it can't get full vacuum pressure with the cap slightly open. these are not major issues.
these are reasons why your check engine light comes on. It happened to my 2005 Buick Rendezvou We had the check engine light on for a week. The car never shuttered, stalled, delayed starts it ran perfectly fine. I took it in to check engine light their computer showed that it was the EVAP system which is the heating and cooling system I would have to get it checked for leaks or do a static check for leaks.
This didn't look good but then one day I had done some work for a friend told him of my problem he told me it could be my gas cap. The next day I asked my wife if the gas cap was working on vehicle it actually was broke I replaced gas cap and the check engine light came off.
Now with this story (which is true) don't assume every problem could be this. But if you are not noticing any stalls, delayed starts, shuttering anything out of the ordinary check the cap at times to make sure it is closed.
If you keep on having light on and replaced cap or made sure was securely on then take and get it checked out.