3923.

 

I was hoping someone would correct me if I was wrong.... I knew I hadthe right #s just wasnt sure of the order

 

well just read on another forum where a guy fixed his #8 plug fouling out constantly by replacing the plenum gasket so....

 

yea i replaced the coil for a little bit it is still messing up so i put the first coil back on it and took the new one back to the store so its not the coil.and the plug thread was wet and the tip of it was white.i also put a timing light on it and it is still in time so i dont thank it is a crank censer. and other ideas im pulling my hair out,i got a small oil leak but it is on the other head or valve cover gasket.im getting the code 300 first then its the 308.so the ramdem misfire is first then the missfire on the no #8

 

dyslexia's a son of a bitch!!!

 

ok i am using autolight plugs.i dont thank it is a mac. problem it mite be a censer problem?...like i said i get a code every 263 miles on the dot? so if it was a misfire wouldnt it show up on the 30 mile marker i dont understand, it why 263 miles later,is it a crank sencer how do i test it ,or the fuel pump or injector? i got a om metter that is all i have?.......i got all the plug wire far apart from each other

 

Because the blown plenum and clogged cat is taking that many miles to F up the new spark plug.

 

thats the way I see it too.... like I said I read where another had the exact same issue with number 8 cylinder and it was a bad plenum gasket..... If it is the issue its gonna stay that issue regardless of whether you choose to ignore it and try to come up with another reason?

 

If it's ignored for too long, you'll destroy the valves too. And maybe even a cracked head between them.

 

I believe that is the same thing as this here too: http://autorepair.about.com/cs/faqs/l/bl654h.htm