my car makes that lovely

sound...doesn't care about the weather though...and doesn't do it on every cold start (or first cold start of the day)...sounds really nasty though and i've tried priming the engine with oil before starting...sometimes it seems to help sometimes not
officially, there is a technical service bulletin from ford but i cant find my copy to get the number....i think u can look it up on
www.alldata.com and it u cant my bad