lots of interesting stuff here. glad my pic helped you w/EGR, even though it was not the culprit.

what is the condition of your fuel system? filter is good? injectors ever been cleaned? pump is fully operational? FPR? while doing a compression test it may be a good idea to check fuel pressure.

overheating: how about t-stat, & you ever flushed the block?


2.6 Trooper
2.0 Impulse Turbo