OK....just picked up an 84 Jag and owner only had 1 key! Found out car actually had 3 unique keys (beyond me). The one I have only works ignition and door lock. I need the one for the gas.....one cap is unlocked, other locked. Could I remove the one unlocked gas cap tumbler and have a lock-smith remake a key or must I get a dealer to get code by VIN# or something?

 

wow - that's quite a question. My car has one for ignition, one for the trunk, and one for the doors. the one for doors opens the gas tank locks too. I don't know what is the cheapest solution, but I would take the lock off the gas door you can open to a locksmith and see what they say.

 

I had this same issue with my new 87 Jag. I bought it for $500 and there was only one key. I had a gas tank problem so when i took it to that shop, i had them unlock the trunck and take the cylinder to a lock smith. Now i have two keys. Didn't cost a lot either. If you can take out the lock cylinder I'm sure a lock smith is the best option.