Chevrolet Trailblazer Engine Misfire

Codes Show A Cylinder #4 Misfire. Have Replaced The Plug, Coil And Boot, And The #4 Fuel Injector. Still There. Runs Great Out On The...

Check Engine Lite Came On At 98k. Replaced All 6 Spark Plugs By A Shop. Mechanic Says That #6 Injector Is 'lazy'. Does Not Inject Proper...

I Have Been Complaining Of Sluggish And Truck Burning To Much Gas. When I Take Off Or Back Up Truck Flutters Like To Much Gas Is Comin Out...

Car Runs Rough, Check Engine Flashes. Changed Plugs And One Coil (originally Said Number Five Misfire) Now Says Random Misfires.

1 And 4 Is Misfiring On My Truck I Have Changed All Coil Packed And Plugs When I Did I Saw Oil On Number 5 Plug What Does This Mean?

I Have This Vehicle And Have Changed The Coil Packs Crank Sensor Spark Plugs Cam Sensor Fuel Pump Fuel Filter. Valve Timing Cylnoide O2...

I Have A 2004 Chevy Trailblazer With 4.2 6 Cyl I Have Changed Plugs And Coil Packs Run Inj Cleaner Changed Map Sensor And Still Running...

When The Truck Gets To 50- 65 Mph It Starts Missing And The Rpm's Drop From 2000 To 1500 Until Brake Is Hit Or Speed Goes Above 70mph Then...

My 2004 Chevy Trailblazer Started Running Really Rough At An Idle. I Took It To The Dealer, They Told Me That The Third Cylinder Is Gone And...

When I Start The Car, It Runs Smoothly When It Is Cold. After I Drive It, It Begins Missing On One Or Two Cylinders And The Check Engine...