Compression Ignition Addict
Join Date: Feb 2008
Location: Central NY
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Lost compression on one cylinder, broken rocker arms?
Ok, not sure what is going on here... Its my buddies 04. They've had a Bullydog on it forever, with no issues. Recently replaced with an SCT finally! We installed a vegistroke last year, been running great with it for quite some time. We recently did an EGR full delete as well, and the truck actually stopped puking for a short time. Not too long after it started losing a lot of coolant again, my guess was head gaskets as its still on factory bolts at 105K miles. The truck needs to be started and fully warmed up before it can even be drove. When first started and the gas is pressed down, it wont even move. He's also had a few instances while driving down the road of white smoke billowing out of it, then clearing up.
It is never ending issues with this truck, every week he emails me with new problems, new trouble codes, etc.
We went camping this past weekend and he brought this truck up (still driving it because WVO is far cheaper than diesel). The truck sounded HORRENDOUS. It had a miss and sounded like it was skipping. They dropped it off at the dealer and here is what they found...
Cylinder 3 only has 176 psi compression, it needs 425 to fire.
Rocker arms on cylinder 3 valves are in 4 pieces, not sure what the cause was but there are 3 other cylinders that show imbalance so they are now looking at those. He will be getting back to me with the total estimate once they know everything that is wrong
What on earth could have caused this? I have my speculations, but I want to see what others have to say. How does this happen?
2006 F-250 6.0 4x4
Innovative Diesel Tuning 466