If it is one that pops open when you pull a lever inside the car (by the driver's leg, usually), the spring is probably broken. Have someone pull that lever while you open the door (keep the latch unlocked by pulling the lever until you have the door open) and try to find the release mechanism. From there, you should be able to tell if the spring is broken - if so, go to an auto store with that spring in hand to find a new one. ----
Pry bar and a hammer
Go in from another door and open it from the inside.
Use the key to open the door.
I have a 95. I find a little wd40 once a month helps out alot. check valet button in glove box.valet button deactivates fuel door realease.
use the passenger door.
May indicate which side of the vehicle where the fuel door is located
A person a can open the rear door from the inside. Get into the car from another door that will open and open it from the there.
i have a 1998 nissian altima the original key wont open the door what do i do could this be a fuse issue
how to open liftgate on 98 lincoln navigator that is stuck
i have a 528i and the doors wont open with the keys how can i get the door open
disconnect the battery and try to open manually from inside
Call a locksmith.