yea, you remove the ignition key and open the door. then the concealed cap latch will release the cap. open cap by hand.
make sure your doors are unlocked and push it open
First you make sure the doors are unlocked. If they aren't the fuel door will be lock. If they are unlocked all you have to do is push down on the right side of the fuel door and it will swing open then untwist the fuel cap.
Look for drain plug at rear or side of oil pan
On a 2004 Ford Explorer : The thread on cap on the engine coolant reservoir is the pressure cap / radiator cap
The cap must be pushed down while turning it to the left. You can turn it without pushing down but it will only unlock and open if you are pushing down and turning at the same time.
The Wool Cap was created in 2004.
Had same problem at first, The car needs to be open then just press the cover over the cap. If the car is locked the cap will not open...
All the fizziness goes out of soft drinks if you leave it without the cap for long.
The thread on cap on the coolant reservoir is the " radiator " cap
How do you remove gas cap for 2004 Lexus RX 330?
Sounds like you need a new fuel cap. http://store.chainsawr.com/