Quote:
Originally Posted by Yozh
I'm wondering why do we need to do a coolant bypass. Can we just plug both ends and be done with it. Looking at a Advanced Diesel document, this EGR cooler is just a loop that should not affect anything. Has anyone experimented with just plugging instead of a bypass?
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Digging this up from the grave ...
Was wanting to do this for awhile, but was going to wait until I changed coolant. Well, that happened today.
Made 2 "plugs" out of the OEM connectors (see attached) by cutting and taping them and using stainless bolts with RTV on the threads. Individually testing them with vacuum showed a leak proof seal, so went ahead and removed my "bypass" and used these as plugs.
Did 2 drive cycles today from cool to hot engine temps. So far so good with no leaks and no unusual engine temp behavior.
The original coolant fill looked pristine after ~65k miles. Sending a sample in to get analyzed. I didn't trust the "lifetime" coolant idea, but we'll see what the report says...