sl0wp0k3

just bought this truck and it rode fine for 2 days then the third night i started it and it idled rough and gas smoke came out of my exhaust! well cyclinder 4 wont fire and i just changed the plugs and wired and still no fire i need some help

backtoarms

Any oil leaks you're aware of? Seems to me like you're cylinder 4 spark plug isn't firing due to probably an oil leak getting into the cylinder causing the plug to foul. Either that or a warped head/blown head gasket. I'd take out that spark plug and see if either oil or coolant is on the plug.

sl0wp0k3

theres a small amount of oil in the plug but gasket is fine

dirty c

was it the black one?

sl0wp0k3

my truck is white

dirty c

okie dokie

backtoarms

The plug that had oil on it, was it wet or was it just black from carbon build-up?

sl0wp0k3

barely wet could it be my egr valve?

TATTRAT

if you had a nickle for every time someone asked you that. . .

backtoarms

Doubtful. That wouldn't foul out your plug. Do you smell gas? It'll probably oil on the plug. Try replacing the spark plug tube seals. Shouldn't be in the least bit wet.