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I am unable to open my gas tank door from the switch in the driver door. I must open the trunk and pull the manual release to open the gas tank door. Any ideas on what could be wrong and how to fix this??? << I am aware of the problems of having to push the switch multiple times and stretching the release spring to open this door ... This is not the problem I am raising. The switch does not work, at all. >>

(Background Info: This car had a small and paint scrape near the Gas Tank Door and wheel well, which was repaired in a body shop. The Side Panel was removed to do this, as was the front and back driver's side doors, the windshield and the back window. The switch stopped working almost 2 months after this repair.)
 

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1999 Kia Sephia, 2016 Kia Optima SXL, 2019 Kia Soul Plus
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I am unable to open my gas tank door from the switch in the driver door. I must open the trunk and pull the manual release to open the gas tank door. Any ideas on what could be wrong and how to fix this??? << I am aware of the problems of having to push the switch multiple times and stretching the release spring to open this door ... This is not the problem I am raising. The switch does not work, at all. >>

(Background Info: This car had a small and paint scrape near the Gas Tank Door and wheel well, which was repaired in a body shop. The Side Panel was removed to do this, as was the front and back driver's side doors, the windshield and the back window. The switch stopped working almost 2 months after this repair.)
Ok, lets start with the basics. You didn't state that the trunk was not opening either so it can't be the related fuse for both the trunk and fuel door release. I would have to say that the connector for the fuel door switch or actuator has come loose. I don't think its an issue with no ground or you would see other components fail. Possibly some wiring improperly routed and cut. It would ideal to trace the wiring to ensure it has no breaks.
 

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Discussion Starter #3 (Edited)
Ok, lets start with the basics. You didn't state that the trunk was not opening either so it can't be the related fuse for both the trunk and fuel door release. I would have to say that the connector for the fuel door switch or actuator has come loose. I don't think its an issue with no ground or you would see other components fail. Possibly some wiring improperly routed and cut. It would ideal to trace the wiring to ensure it has no breaks.
Great! I have just found this link; http://www.kia-forums.com/kia-magentis-optima-forum/68955-2008-kia-optima-gas-cover-wont.html but can not find the referenced fuse (I have an 07, the link refers to an 08) ... but you suggest that this is not a fuse issue. I will work to pull the switch from the door to see whether the trunk & fill door wiring is properly attached, and while I am at it I will put a meter on the switch to be sure it is good ... any thoughts on how I might be able to access the wiring at the actuator?? From the trunk?? Thanks for the suggestions!!!
 

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I found this link, which was very helpful. DIY: Fuel Door Actuator Lock Removal / Clean-Lube / Replacing - G35Driver

Using this as a general guide, I removed the liner panel from the trunk and gained access to the fuel door actuator. With my volt meter I discovered that power was not getting to the actuator.

I then removed the two screws on the bottom of the driver door and was able to get my hand behind the door panel, and pushed the switch out of the door from behind. Again, my handy volt meter was able to tell me that voltage was getting to the switch.

Using a pair of gaiter clips, I carefully shorted the terminals on the switch. Lo and Behold, the fuel door opened. The switch is bad and will be replaced within the week.

Thanks for the help!!!
 

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Gas tank door won't open

Love these forums, I have an 2008 Kia Optima and the gas tank lid won't open, Read the forum, couldn't find a fuse for the fuel lid just the trunk lid, so pried the door panel out enough so the i could stick a wire up and cross over the wires on the back of the fuel lid and it opened so out to buy a new switch.
 
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