Check the battery connections; make sure they are clean and secure. Also check out THIS ARTICLE . I get my contacts from a local automotive electrical shop; dealer sends their stuff to them anyway.
Not likely your tumbler; truck is too new, unless you have 1# of keys hanging off your keychain.
You can also simply pull your starter and take it to a local parts store for a free bench check.

Last edited by kewlynx; 09/03/04 03:54 AM.