IH8FORD

iTrader: (6)

My car keeps knocking out the #7 spark plug. It will idle for few minutes and knock it out every time. I have switched the coil pack and wire for the number one cylinder and the problem stayed on #7. All the other plugs look great. My next step is to swap the injector for one from #1 and see if it is the problem. Anyone have any other ideas if this doesn't work ?

Grant@NitroDaves

is it fouling, melting or literally knocking it out of the threads?

IH8FORD

iTrader: (6)

Plug is fouled wet with fuel

ShiznityZ28

iTrader: (11)

compression check. no compression will not ignight the fuel.....

JL ws-6

iTrader: (50)

Sounds like the #7 piston/rings have an issue. I bet a compression check is gonna show you something you're not gonna like.

IH8FORD

iTrader: (6)

Just did a compression check and I have over 180 on all cylinders.

01 Red WS6

iTrader: (4)

Did you check the harness to that coil pack?

TARZAN

iTrader: (12)

Swap the injectors around and see what happens, it may be sticking open.

-Will

IH8FORD

iTrader: (6)

I will swap the injectors tomorrow and see what happens.

JL ws-6

iTrader: (50)

must be the injector... probably leaking when the things' supposed to be closed.

That's an easy fix, alot better then having to rip everything down that's for sure!

IH8FORD

iTrader: (6)

Yeah I was sick to think I would have to tear the engine down before I got to spray the **** out of it.