it's a common head scratcher. the newer ones have a fuel pump module under the truck that runs the pump. the older ones had a relay.
pull the fuse.
I got me a Tahoe!
- Thread starter Nutro
- Start date
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it's a common head scratcher. the newer ones have a fuel pump module under the truck that runs the pump. the older ones had a relay.
pull the fuse.
So I check compression on number two as well and it was right at about 168 also. I pulled the valve cover and had my dad spin it over and all of the rocker arms are moving like they should. Even number four that has a cylinder misfire the intake and exhaust Rockers are both moving up and down as it Cycles through the start. I don't see any evidence of a broken valve spring or at least I don't see any cracks
You have no compression problem on those cylinders. Problem is elsewhere.
mountie
Supporting Member
What about replacing the #4 coil & wire??
In post #1 he said he tried that.
I never asked. Can you see/feel a misfire at idle? Can you feel a misfire when driving? What exactly was the code or is the code? P0304?
mountie
Supporting Member
I'm watching the Army - Navy game..... Was distracted....
