P0304 Cylinder 4 Misfire Update
P0304 Cylinder 4 Misfire Update
Okay so I was getting a misfire on cylinder 4.
I changed all the plug wires on the passenger side 3 times. Then I took everybody's advice to look at the plugs even when I didn't think it could be the plug.
Well here's the plug I pulled out of cylinder 4-


I tried putting in a new plug and started it up and it started misfiring again.
I pulled that plug after less than 5 minutes and it looks like this-

Whattaya think?
I changed all the plug wires on the passenger side 3 times. Then I took everybody's advice to look at the plugs even when I didn't think it could be the plug.
Well here's the plug I pulled out of cylinder 4-


I tried putting in a new plug and started it up and it started misfiring again.
I pulled that plug after less than 5 minutes and it looks like this-

Whattaya think?
u might have a bad injector looks like that cylinder is running rich... swap out an injector and see if it changes from one cylinder to another. it also looks like u r burning some oil u might also have a bad set of rings. did u check compression....?
I didn't check compression yet but yeah the plug looks like somebody dipped it in tar.
Thread
Thread Starter
Forum
Replies
Last Post
Noct
General 1967-2002 F-Body Tech
2
Jul 14, 2015 01:18 AM



