Originally Posted by Grumpy
Ok guys, I have a miss on cylinder 6. I pulled the spark plug and it looks greeny yellowish. I checked to see if i had spark and It does, I replaced the spark plug and it's still missing. It shakes the truck pretty good at idle too. I'm thinking it might be the injector. Also are the injector all the same on the 3.0, like can I take one of my 98 and see if the will work on my 06?
What do you guys think
When you pulled the #6 spark plug, was the plug wet or dry? A wet plug indicates that fuel is getting in there, and to troubleshoot the electrical side ( bad plug, faulty wire, or coil pack malfunction). A dry plug indicates an injector issue. You can easily swap out the #6 injector with a new one.
You may be getting spark, but the coil pack may not be sending the electrical current on proper time. The cheap and easy way to check this is to replace the plugs and wires (might as well if they haven't been done for quite some time). If it's still running rough, and the plug is wet, proceed to swapping the coil pack out).
Hope this helps.
I'm speaking from experience. I had a code thrown at me regarding the #6 cyl too. Turned out it was my coil pack that went. I followed the troubleshooting advice from another member, and it helped. Now I pass that advice onto another member in need.