WOW, Wish I would have....
...purchased the right truck the first time. First run today with new to us GMC 3500 and WOW. The difference between the GMC and F350 is night and day. Truck pulled our fiver over same hills that o...
Forum Discussion
carringb wrote:
Doesn't surprise me at all. Blown EGR cooler causes Unison ring rust. Yours got stuck in a low-boost condition, This won't usually show a code, but if you hooked up a reader, you'd almost certainly see boost is not anywhere near spec. I had one 6.0 through the shop that was only making 15 psi boost under WOT.
OK I need some help here...what exactly is a unison ring and what happens when it rusts? If the motor isn't making boost to spec why isn't there some kind of "boost sensor" to light the CEL?
The more I read about the new generation of diesels with smog controls, the more I think they are being built from plans that Rupe Goldberg himself drew up....
