I have an "05 350 6.0 that has 175,000 miles on it.

It has had a few EGR coolers replaced, but other wise been a good truck.

Today it has started to run very rough and is down on a lot of power out of the whole. Once making boost it does OK. It has a ticking sound and you can hear a quiet drumming from the intake tube.

It seems to be a bent valve to me but was hoping it is much more simple.

Any ideas?

 

Im guessing an injector is going out, or has already gone out.

 

We got the valve covers off and no signs of valve problems. There were no codes. Not event for the horrible missfire.

 

Have you gotten on the nation?

powerstrokenation.com

Register and search. Im sure you will find a better answer than what you can find here.

 

Head will be off first thing tomorrow and we will see what is wrong with the valves on the left 3rd back cylender.

 

Something got into the cylinder and is now embeded in the piston.

 

Your glow plug tip and injector tip still intact? if so someone has dropped something during your egr cooler replacements at some point. I have seen that before here in the shop.

 

Yep, the tips are in tackt. We have replaced the cooler 3 times. And I am guessing our mechanic made an oops last time he worked on it.