Truck (2005 Tacoma 4.0L) threw a P0306 code yesterday which is a cylinder misfire on cylinder 6. Lots of talk on the web about potential fixes, one of which being the dreaded head gasket.
I pulled the #6 and #3 spark plugs. Pretty noticeable difference between the two. The coil also had some oil on the body which seems odd. Seems like some oil fouling on the plug too.
Any thoughts based on the appearance of the plugs? Truck is new to me but plugs have about 30k miles on them.
Cyl 6 on left:
Cyl 6 on right:
I pulled the #6 and #3 spark plugs. Pretty noticeable difference between the two. The coil also had some oil on the body which seems odd. Seems like some oil fouling on the plug too.
Any thoughts based on the appearance of the plugs? Truck is new to me but plugs have about 30k miles on them.
Cyl 6 on left:
Cyl 6 on right: