Mysterious miss

[Grabber523]

Originally Posted by JackandJanet

It really DOES sound like something "wet", doesn't it? Sure doesn't sound like "limp mode", not if you didn't get an overheat warning.

I know these engines are very sensitive to water in the vicinity of the plugs, but if a truck can't stand a little slush, well sheesh!

I'm sure stumped.

- Jack

If you pulled codes on it it would probably have some in there for cylinder misfires, even though it didn't trip the CEL. Have you changed the plugs on it yet?