How to proceed, plugged oil cooler.

[EPFD217]

SO, I'm fairly confident my oil cooler is plugged. Over the past month I've seen my temp delta hang between 20* and 30*. A typical day, EOT is 220 and ECT is 195. This is while doing the textbook TSB test procedure.

While towing with 5000lbs I've been seeing EOT rise to the 245-250* mark while ECT NEVER gets above 210. Fans kick in and drops it down right away. Usually just hovers right around 200*.

So I feel fairly confident in the rest of my truck operating as it should.

So what should I do next? I have a repaired FICM with Atlas 40 tune and I've added an Edge CTS with pyro. That's it. Its stock.

My thoughts are to do the coolant flush, backflush the cooler and see if I can buy some time. If nothing else I will do a thorough cleaning before replacing the oil cooler. I'll add a coolant filter in the process.

Am I on the right path? Should I be checking anything else?

[d and b installer]

I would do the flush then replace from what Ive seen of the ones guys have cut open is that by the time they are blocked its to late to save them. I have heard differing opinions on whether or not to drive the truck (after flushing the system) for a couple days with a filter setup. personnally I believe this is the way to go before swapping in the new cooler as you get a chance to catch that much more garbage from the system.

[southend]

Imho you are taking a serious risk running your truck like that. If your oil cooler busts you will have a big mess.

Sent from my SCH-I500

[cappybye]

Time to open her up spend a few bucks and take care of things. New oil cooler, while you're in there do the EGR, STC and IPR valves, dummy plugs, everything that usually causes problems when they get to that stage.