Cylinder #6 Misfire

[MMG1989]

I have changed all the plugs, I have changed all the coils and my Engine still has a little rough idle and my check engine light has came on a couple of times and it has said this. Any suggestions?

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[PonyUP]

I have changed all the plugs, I have changed all the coils and my Engine still has a little rough idle and my check engine light has came on a couple of times and it has said this. Any suggestions?

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I had this happen on mine a few months ago, turned out it was a bad tank of gas. Had to have the gas tank drained the mixture appeared to be half diesel. Drained it at Mo's and Shell reimbursed me the cost of the work, the original tank of gas and the new tank.

Did this happen after you go gas, when cold does it have a hard time staying started? Is there a bunch of white smoke on start up?

that's what happened to me

[MMG1989]

I had this happen on mine a few months ago, turned out it was a bad tank of gas. Had to have the gas tank drained the mixture appeared to be half diesel. Drained it at Mo's and Shell reimbursed me the cost of the work, the original tank of gas and the new tank.

Did this happen after you go gas, when cold does it have a hard time staying started? Is there a bunch of white smoke on start up?

that's what happened to me
I thought it was gas to thats why i only use Exxon but after months of just using Exxon Im still getting the misfire and the engine vibration i can just be sitting at the light i can feel it missing and vibrating and when i changed my spark plugs they had oil on the emd of them

[Granddaddy Marq]

Witch end?

[MMG1989]

Witch end?
its the driver sides 2nd to last cylinder 6

[Granddaddy Marq]

Witch end of the plug the top or bottom of the plug. You know the spark end or the conection end.:lol:

[MMG1989]

Witch end of the plug the top or bottom of the plug. You know the spark end or the conection end.:lol: the spark end

[slickster]

Is that a valve cover gasket leak

[Granddaddy Marq]

There's oil on the spark end!? Compression check ASAP. Oil on any end of a spark plug not right, but the spark end could be real bad. That's the warst end to have oil on. It might be valve seals, not an EZ fix but better then any other I can think of right know.

[Granddaddy Marq]

Is that a valve cover gasket leak

Oil would be on the top of the plug (the threads up). A not so bad of a fix it will have it's moments. From the threads down, oil should not be there at all.

[RF Overlord]

Oil on just the #6 plug or all of them on bank 2, or......?