I'm presuming you mean there's a 1-3 second delay prior to otherwise normal engine cranking.
These are the components in the starter circuit:
-- Start relay (in underhood junction box)
-- Starter
-- Ignition switch
-- Burglar alarm relay (behind dash on brace to left of heater box)
-- Range switch (on transmission)
-- Body Control Module (behind dash, underneath radio), which grounds burgl ar alarm relay.
A problem in any of them could be the issue. The only way to determine whi ch (without trial and error or a lucky find on an exploratory surgery) woul d be to check various parts of the circuit with the key in the start positi on while the engine won't crank.