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Just joined, I've been looking for these discussions and input! So, I'm mid 50s trucker, ex g.m "goodwrench" tech. Diesel tech, always drove Diesels autos since the 80's currently own 18 equinox and, lt Diesel & a colorado 4dr. 2wd 2.8 Diesel. My wife drives the equinox, and has been an amazing carefree vehicle. Avg.41mpg, up to 47! I do my own maintenance of course, she called today and said message on dash, 100 miles to power degrade, def, emissions issue. And counting down miles... so, here is what I highly suspect, and no happens in modern big truck Diesels, and have heard of happening on the colorado diesel, d.e.f. crystallizes like salt,and plugs the injector. Common and easy fix, normally but I won't be home until tomorrow. Pull computer code e.t.c . If I can't fix it, off to the dealer I worked for in North Ohio. Will update soon . anybody else had this issue before 60k
Is this due to a lot of short trips ..that it did not do a regen and need a manual regen ?
 
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