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RAMIT222 11-10-2010 07:50 PM

Diesel Hard 2 Start - Cold Weather
Hi, I have a 2500 Ram with a 5.9L Cummins turbo diesel. I reads "D" on the hood sticker behind "turbo". Anyway, it is hard to start when it gets just below freezing. It also burns oil a moderate amount for about 5 mins until it warms up. Starts good when warmer outside & doesn't burn oil - it is bluish anyway ( could it be diesel ? ) The "wait to start light" comes on. I let it cycle for 12 sec b4 trying to start. Then it bucks & chugs, then afthier about 15 sec it finally starts to run smooth. I don't think that being just below freezing that I should plug it in. Does it need a new fuel filter ? Or how to check fuel pressure - seems almost like it looses its prime. Could also be a glow plug or preheater problem ? How could I check that ? Need some help as I leave for work @ 5 am, neighbors are probably mad.:box2: Thanks in advance

RootBeer 11-10-2010 07:54 PM

Diesel fuel is notorious for gelling up when cold. There is an additive you can get that you put in at each fill-up to help prevent it. The fuel you buy is supposed to be non-gelling, but when I worked selling it part-time I'd dip the tanks and trust, that stuff was thick.

RAMIT222 11-10-2010 07:58 PM

It may help, but I don't think the neighbour has to put that in his diesel to start his. I work on rigs & I think it is 1 of those items I spoke of. Would anyone else have an idea ? Thanks

ram150002 01-31-2011 09:44 PM

I have 96 cummins with the 5.9 12 valve that does the same starts really hard in cold even when plugged in. When it does start it has a hard job to stay above 1000 rpms with a lot of white smoke. I tried new injectors but that didnt fix the problem. Any other ideas?? Thanks

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