1. Check the Obvious:
* Try the release again: Sometimes a firm, consistent pull on the interior release lever is all it takes. Make sure you're pulling it firmly and straight.
* Check for obstructions: Inspect the area around the fuel door exterior and interior. Is anything blocking the door from opening? Ice, snow, or debris could be preventing it from moving freely.
2. Investigate the Cable:
* Locate the cable: The fuel door release cable runs from the interior lever to the fuel door latch. You'll likely need to access it from the trunk. You might need to remove some interior trim panels to get a clear view.
* Inspect the cable for damage: Look for breaks, kinks, or fraying in the cable. If the cable is broken, it needs to be replaced.
* Check the cable connection: Ensure the cable is securely attached to both the lever and the latch mechanism. A loose connection can prevent the door from opening. Try gently working the cable to see if it's binding or stuck.
3. Address the Latch Mechanism:
* Lubrication: If the cable seems intact, the problem might lie in the latch mechanism itself. Try lubricating the latch with a penetrating lubricant like WD-40 or a silicone-based spray. Allow it to penetrate for a few minutes before trying the release again.
* Manual Release (if possible): Some models allow for manual access to the latch mechanism. This might involve removing the interior trim around the fuel door. Once you can see the mechanism, you might be able to manually release it. This requires careful observation and understanding of the latch mechanism. If you're not comfortable doing this, seek professional help.
4. Consider a Broken Latch:
* Replacement: If lubrication and cable checks don't work, the latch mechanism itself may be broken and require replacement. This is more involved and often requires a mechanic or access to a parts catalog specific to your 1994 Cadillac DeVille.
5. Professional Help:
If you're not comfortable working on your car yourself, or if the problem persists after trying these steps, it's best to take your Cadillac to a qualified mechanic. They have the tools and expertise to diagnose and fix the issue properly.
Important Safety Considerations:
* Never work on your car with the engine running.
* Always use appropriate safety glasses and gloves when working on your vehicle.
* If you're unsure about any step, it's best to consult a professional.
Remember to consult a repair manual specific to your 1994 Cadillac DeVille for detailed diagrams and instructions. This will greatly assist in locating the cable and latch mechanism. Good luck!