So I have been reading in the 6.0 tech section a little. About 6 months ago I had a computer hooked up to my truck and my deltas were 10* max. Then about two months ago I flushed my coolant system using the flush and fill method, with distilled water and new ford gold coolant. Do you guys think I inadvertantly clogged my cooler when I did this?
Also, there is a good write up about reverse flushing your oil cooler to get the junk out, think this is a possibility for me?
Short answer, yes you clogged the unit with the flush. Folks do it alot, without thinking about it, you aren't the first.
I don't feel that reverse flush is worth attempting, due to the design of the internals of the cooler. You may get a few thousand more miles out of it, but you can't clear all the junk. You have the motor torn down to the cooler, put a fresh on in there and be certain of its health to start with.
I have stopped following the coolant life-cycles and flushing intervals prescribed by Ford Motor Company, due to these coolers. With the Ford Gold, you will be very hard pressed to get 100K out of a cooler with the EGR cooler intact. If you flush the system at 50K, you will most likely clog the cooler anyway. So what I do now (until my next oil cooler rebuild, and I make a coolant swap) is allow the oil cooler to determine everything. When its ready to go, here's the sequence I recommend:
1) Flush with Restore.
2) Flush with Restore Plus.
3) Flush with Distilled water multiple times.
4) Drain the system as completely as possible.
5) Tear down to the oil cooler.
6) Solve your EGR cooler (block, delete, or upgrade - dont reinstall an OEM unit)
7) Take the time to pressure wash the Intake Manifold.
8) Clean the EGR valve.
9) Rebuild/replace your oil cooler (or shift to the external unit from BPD)
10) Reinstall everything.
11) Refill your coolant system with concentrate and distilled unit.
12) Refill the oil and change your filters.