misfire after intake install(heater hose nipple broke)

[dastang2]

misfiring 4.6 bad head gasket or rings



go to this link and check out the thread

 

[Big Show 96]

The intakes with the O-rings don't seal very well. You will prob need some RTV to help it seal. I've always used the Dorman intakes ( no o-rings ) & had zero leak issues.

 

[dastang2]

i thought that this could be the issue on cylinder 5 since it was next to the water port and the head had some pitting but #2 is not near a water port so i don't believe that is the issue here. thanks.