GMC EXHAUST

I Just Had A Cng Converstion Kit Installed On My 99 Denali And Now My Check Engine Soon Light Came On. I Took It Back To The Shop That...

I Have A Gmc Yukon Where I Replaced One Of The Catalytic Converts Last June. I Have Been Having The Check Engine Light On Which Is Reading...

I Have A 1991 Buick Century, 2.5l 4 Cylinder With 126000 Miles. The Problem Im Having Is Extremely Intermittent So Its Hard To Find Out...

Hi, Would Too Large Of A Muffler And Too Small Of A Tailpipe Cause A Catalytic Converter To Burn Up? The Tailpipe Is A 2" Instead Of A 2...

My Engine Light Is On And After Using An Odb? Tool I Was Told I Need A Catalytic Converter. There Were Also Code For Misfiring On All The...

There's Knocking Loudly And Muffler Sounds Loud As I'm Driving And The Catalytic Converter Sounds Like Something Is Loose Inside Of...

So I Just Bought The Suv A Few Weeks Ago, And The Engine Runs Smooth As Can Be. However I Have Noticed I Get Around 6 - 8 Mpg (i Thought It...

I Just Brought A Used Truck Listed Above1500 And It Blows Some White Smoke (not A Lot), I Am Wondering If That Is An Issue And What Is...

When I Took The Truck For Annual Emissions/safety Inspection, The State Emission Computer Showed My "catalyst" And "evap"...

Hello, My Suv Listed Above Is An Slt Model And Has Been Losing Power While Driving On The Freeway And It Idles A Little Rough...