oh no

ok well after doing a compression test on my motor we discovered #5 cylinder has only 4-5 pounds af compression so we need to do a leakdown test now and see what messed up so what is a good way to get the motor to TDC on number one and what is the firing order of these motors.


Thanks

the firing order is in your hptuners...i believe in the engine diagonstics folder where you cant turn on and off the DTC's

Sounds like a hole in a piston or a bent valve or maybe all above :eek:

yeah im hoping for something in the head and nothing in the motor itself:(

If it's that low on squeeze and makes no really loud noises my bet is a piston or something else in the bottom end. Sorry for the trouble. Let us know what you find ASAP.

well heres what happened the rocker arm failed holding the exhaust valve open and held the pushrod up heres the pics.

http://i385.photobucket.com/albums/o...verado/134.jpg
http://i385.photobucket.com/albums/o...verado/135.jpg
http://i385.photobucket.com/albums/o...verado/136.jpg
http://i385.photobucket.com/albums/o...verado/137.jpg
http://i385.photobucket.com/albums/o...verado/138.jpg


They are replacing it under manufacture defect:thumb:

damn thats some sweet carnage. anything else messed up?

Hope pieces/parts didn't get into anywhere else. If not, it should be a relatively easy fix. Glad you found the problem...

Trey, Damm that sucks but good thing its warrantied.
I would recommend you pull the head. The rocker could have just failed, but it the valve got stuck open and the piston hit it, that piston could be damaged.
And its a cheaper fix Now if its just a dent in it, .
Drop a line, if you need anything. Hope to be dynoing this week with the test truck, see you around town.

Damn Trey that didnt take long...:(