Buick Skylark Engine Hard to Start

My 1998 Buick Skylark Starts Hard And Usually Activates The Passive Security Feature. It May Take An Hour To Finally Get It To Start And It...

When Outside Temp Drops To 50 Degree Or More Car Is Hard. To Start. Acts Like It Wants To Start But Quits

Car Is Hard To Start When Cold And I Must Give It Gas To Start Once Started It Idles Up And Down For Maybe 3 Secs Until Settling At A...