I need help IDK what just happened to my truck. I got off the interstate and thought it sounded a little louder than usual. It sounded like an exhaust leak but it got louder and louder and when I stopped and popped the hood, it was popping back through the airfilter. My EGT's were staying pretty hot and it feels like its missing. Sounds like maybe a burnt valve or something along those lines.

 

try loosening each injector line and see if you can figure which one it is and see if any of your exhaust ports are cooler than the othersand possibly could be a burnt valve

 

Thats what Im thinkin its screwed and Im screwed either way. There is no water in the oil and its running rough like its missing on one or two cylinders.

 

Sure sounds like a valve isn't sealing for some reason.

 

I think I've determined its the number 1 cylinder, the exhaust manifold stays cool right there. I took the valve cover off and everything is moving like its supposed to. IDK how you can burn a valve in a diesel especially when the EGT's didn't go over 800 on the whole 10 minute trip to school. I didn't hear the valve hit the piston so IDK

 

have you pulled the valve cover yet ive seen where the valve spring is broken and just kinda stuck open you would be very lucky if that was the case

 

jason, do a compression check if you can, it might be a headgasket between 1 and 2 cyls..... Harbor freight sells a diesel compression checker for $25

 

I pulled it today and everything up top looks like its in place and moving like its supposed to. Guess Im gonna have to pull the head off and see whats up or try the compression check like Ben said

 

do the compression check first

 

sorry for the misguidance Jason....

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don't know if you could make the first one work or not.....