Locking Fuel Tank Actuator
 

My locking fuel door has become inoperative. It's a 2000 bonneville. It works if I hold the button and manually push it in and out, but no longer operates automatically. The fuel door stays lock when I place the car in park and turn off the motor. I presently have to use the pull cord in the trunk.

The dealer wants $55 for the part and $75-100 for labor. Does anyone know if this part can be purchased used, etc., and if they can be self-installed.

Thanks.

I think mine is going up...sometimes it works and other times i have to use the cord in the trunk. I hope someone has an answer for us!!! :)

Mine is doing the same thing.
Luckily I'm still covered under warranty and the dealer has ordered my a new one. :D
It must be a common failure. 5 year life....??....actually I have very low mileage so I would have expected a longer life. :(

It all depends on how often you lock/unlock your car as far as life goes.
2000SilverBullet, if you can and wouldn't mind, could you get the p/n for the actuator. I couldn't find it on AllDataDIY.com and it would be nice to know once my warranty runs out as well as for these guys to know now. Once you guys get/find the part number, just head on over to GMPartsDirect.com and see what the price is there.

For you guys that are looking to do it yourself, it looks like it is just push pin'd in. You should be able to see the back side of the actuator from the trunk by pulling back the carpet on the drivers side. Just follow the pull cord. You guys could also try lubing the actuator and working it.

Mine stopped working about 4 months ago. I removed and disassembled the actuator to inspect it. I cleaned it up (dirty) and sprayed some silicone lube internally on the mechanism and it has worked perfectly since.... It only took about 15 mintues to do it.

mine stopped working for MONTHS, it was stuck unlocked tho... but suddenly a couple weeks ago it started to work again..

mine has never worked maybe I'll try to clean it up and see if I have any luck with it

Two things I see here. Bonk...can you please do a write up on how you did this cleaning and reinstall. I'm sure these guys would appreciate it.

The other if there is an adjustment for where it catches (95 and 97 are adjustable) you should be able to adjust the catch mechanism back a little so it won't grab the lid and be able to lock it.

Pull cord? What pull cord??

Mine froze last Winter and wouldn't unlock on it's own until Spring came!

I had to pop it open with a screwdriver when I needed gas. How embarassing.

I pulled it out over the Summer and inspected it and lubed it a bit with a little white grease. Hopefully it won't freeze up again this Winter.

The actuator has two push pins holding it in place. They ara accessible from inside the fuel door. You can't get to the actuator from inside the trunk.

I used a small screwdriver to pry the pins out. Then the whole thing comes out through the fuel door.

Reinstallation is the reverse of the removal.

Cheers...

Locking fuel door
 

I dis assembled mine and cleaned it and greased it and works fine..took very little time and effort..

Can someone post clean-up steps or part#?
 

I took off the part and sprayed it with some silicone. Still doesn't work.

Can someone post what exactly they did to clean it?

Or:

Would someone kindly post a part #. I can't seem to locate it.

Thanks.

inside your trunk to the left.

mine stopped working for about 6 months and just started working agian on it own... its been good for months now

Do they all have this? I'm thinking mine doesn't but I can't imagine that the lower trim levels would have an option like this that my SSEi doesn't...but maybe that's how it is??

Quick way to check would be to lock your doors and see if you can open your gas door. or just look inside the door for the actuator...

if you open your gas door, there is tab with a square hole in it that gets locked by the actuator.

the acuator is the black thing seen here:

https://i6.photobucket.com/albums/y2...ts/gasdoor.jpg

Thanks for snapping that pic. I attempted to last night, but Black car + low lighting conditions = CAN'T SEE JACK-CRAP

yet another time im glad i have a camera phone....

I've got one as well, but it takes even worse pictures in low light than my digi-cam does...

part #
 

by the way, the part number for the fuel door actuator is 25714940

looks like mine has the actuator, it's just not actuating. One more project to tackle once it warms up some! :greenbounce:

Re: part #
 

New guy here, buth thanks for the info. My fuel filler door actuator went tits up in November, and my dealer hasn't gotten the part in yet.

George