GMC Sierra Spark Plug

I Have Changed The Spark Plugs And Cleaned The Throttle Body. The Gas Mileage Is Still Down About 3 Miles Per Gallon. Should I Change The...

Hello! This Question Is In Regard To A 2006 Gmc Sierra 2500hd (8.1l Gas Engine) With 197,000 Miles On It. It Had Around 60,000 Or 70,000...

How Do You Remove The Spark Plug Booth ?

Hey, I Don’t Know Which Spark Plug Wire Set Is The Right One For Me. I Have The Truck Listed Above 2500. Online There Is A 10.5” And...

I Replaced The Spark Plugs And Oil. Now It Has A Low Idle And Cut Out When Put Into Gear And Press On The Gas Pedal.

Ever Since We Had Some Cold Weather My 2004 Gmc Sierra 5.3l Started Idleing Rough, It Seems To Run Fine When I'm Driving Its Just When I'm...

Engine Mechanical Problem 2001 Gmc Sierra V8 Automatic Where Is The Spark Plug That Leads To The #2 Cylinder In A V8 Engine

Truck Idels Rough Sputters When Excelerated From A Stop. Gets Bad Gas Mileage. I Was Told Problem Was Created From Driving With A Bad...

I Have A 2000 Gmc Sierra 1500 5.3l 323 I Went Offroading Through A Pond And Ever Since Then Its Been Stalling Out On Me. Now I Have...

My Owners Manual Says To Gap The Plugs To .060, But The Spark Plugs I Purchased Say To Gap Them At .040. I Double Checked And They Are The...