Cadillac STS Engine Runs Rough

My Car Is Hard To Start At First Then Runs Very Rough Has No Power And Tries To Shut Off And Smells Very Bad.

I Just Bought The Car Listed Above With The V8 4.6l Engine (i Think That's Right?). Anyways, The Vehicle Sat For Two Years Before I...

Almost Like Misfiring.smooths Out After @ 5 Minutes. What May Be The Cause? Have Replaced Coil Packs, Plugs, Plug Connectors(wires), And Cam...

Hi I Bought My Wife A 2000 Seville Sts About A Year Ago. It Has Had Some Minor Problems, But Other Than A Starter, Nothing Too Costly....

1999 Cadillac Sts V8 Automatic 37000 Miles When First Starting On Chilly And Cold Mornings, The Car Runs Rough Until I Drive It For A...

What Does It Mean When Engine Is Running Rough, Boggs Down And Chokes Up Everytime You Press On The Gas Peddal And Sometimes It Runs Very...

The New Motor Only Has 40,000 Miles I Had A Tune-up On It A Year Ago And When I Drove It From Houston To Dallas Texas It Ran Just Fine And...