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Nope... I start mine in that temp (even in the So. Calif. desert) and it doesn't do this. Maybe something is starting to fail. Do you have a plug to keep the block warm? To see if it's too cold you might try using that, except that I think the plug only warms the block to 40 or 50 degrees anyway. This would only help verify something is wrong.
I had a gas engine in a previous Ford SUV that would do this when I approached the factory interval for changing the oil and coinceidentally changed the oil. After the third time this happened I changed to the "extreme" interval and never had another problem so I attributed it to old oil. But I don't know if this happens for a diesel because there could be so many other things same as a gas engine.
Bottom line is that if it runs rough and didn't before, it ain't right. Also could be caused by old fuel, bad fuel, clogging injector, or a bad injector. Others have had rough diesel engine trouble on different makes caused by an injector (ouch, that's gonna hurt). I wonder if someone can recommend some kind of fuel additive/injector cleaner that solves minor problems like bad fuel or a suspect injector. If it's something worse, I'd go have it checked out because I'm not smart or brave enough to do this myself.
Please let us know what you find.
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