Thank you simidrm , I can comprehend some of what you are saying. I crawled under chassis today to look for any visual signs of damage . When you say lines you are talking about wires or harness ? This is way over my head but I try to learn as much as possible so that I might be able to fix it if it happens again.
After talking to Cummings tech today he asked me about temps. It has definitely been cold enough ,8°below , for def to freeze. Daytime temps the last couple of days have been mid 40s.
Tech said it is possible def is still frozen in lines. I read that def lines purge when engine is shut down. Can you confirm that ? At this point I think I will fork out $$$ for Frieghtliner Mobile repair.
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