2002 GMC Envoy "misfire 1" Questions

...codes ...4 codes 4 problems P0300 - Random Cylinder Misfire DetectedP0301 - Cylinder 1 Misfire DetectedP0302 - P0312 Cylinder X Misfire DetectedP0325 - Knock Sensor 1 Circuit (Bank 1)Just showing a ...

...1 cyl. misfire it will misfire when engine load is present. if you want to test it .push brake pedal engine running and shift into forward gear and with the other foot raise rpm to 2000rpm you will ...

...1 misfire swapped out coil from another cyl did tune up still comes up #1 misfire have you tested the coil with an external sparkplug? This also may indicate fuel injector leak/not working....test ...

...1 Misfire Two separate problems to work on. You will need help on those at a repair shop Do not let them do anything but diagnose & repair those issues only Don't go down the silly tune-up ...

...misfire were is tha cylinder CYLINDER NUMBER 5 IS STANDING IN FRONT OF VECHICLE IT WILL BE THE 5 CYLINDER COUNTING FRONT TO THE BACK CYLINDERS IS IN ORDER 1 2 3 4 5 6 THAT YOUR CYLINDER ORDER. YOU ...

...1 was not firing-so i put in a new coil on that plug and didnt help 2002 Envoy sle 4.2 L straight 6.   Random misfire(PO300).  After erasing codes for several days, I finally took my ...

co 305 This is a misfire in cylinder #5. # 1 is at the fan, then it goes in order to #6 at the firewall. More than likely it's a bad coil.

I have a misfire in 2 cylinder in 2005 envoy 4.2 is number 2 cylinder closet to the fan or do I start from firewall down They go: #1 --> #6 from Radiator --> Firewall.

...1 cylinder misfire in number 1 cylinder You could have a bad spark plug or a bad coil pack for cylinder 1. Or it could be as simple as a poor connection at the coil pack.Other possibilities are, bad ...

misfire on cylinder 2. Want to change coil. The #1 cylinder is the one closest to the radiator. Number 2 is just behind #1. It takes all 4 ingredients to fire a cylinder - Air, Fuel, Spark, and Timing