GMC Sierra Spark Plug Replace/Remove

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 ?

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...

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 1999 Gmc Sierra 5.3l 323cid V8 Diagnostic Always Showing Misfire On Cyl. #4 I Change Spark Plugs , Wires , Ign. Coil, Fuel Filter, Mass...

My 1999 Gmc Sierra Has A Low Idle And Then Shuts Off After 5 To 15 Mins When I Press Gas Pedal It Has A Backfire Sound In The Engine And Air...

Recently Had Intake Gasket Replaced, Spark Plugs Have Been Changed. Now Have Intermittent Engine Miss And Airbag Light Is On, Also Mileage...

Ok, We Were Having Problems Starting Our Truck. We Changed The Starter, That Did Not Fix It, We Changed The Fuel Filter That Didn't Fix It....