Not normally but your truck does have a lot of miles on it. Some of the fuel lines are rubber lines but most of them are matal lines.
If there is a leak in the lines, your truck should take a little time before it fires up. Another thing is if the leak is big enough, you should be able to crawl under the truck and visually see the leak. This is due to the lack of fuel pressure while the truck sat over night. Otherwise you truck should just start right up.
Another thing to check is to see if your gas tank is leaking. If i'm not mistaken, your truck has a metal tank which are notorious for corrosion. Plus there is a drain plug on the bottom of the tank with a stupid little gasket. Either way you should visually notice the leak.
Some older fuel injected vehicles often get a aftermarket inline fuel pump installed since it is a pain in the *ss to remove the in tank fuel pump. Sometimes those pumps give you problems since they are made of plastic or just leak after a few thousand miles.
Either way, the best way to diag this concern is to use a creaper and your nose and follow the lines from the tank to the engine until it's found. - Happy Hunting
