Stop in for a cup of coffee

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Well here it is still snowing and a picture is worth a thousand measurement comments!

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Smoking like crazy. Fuel smoke. Idling high, 1500 rpms.they usually idle around 900. Thing ran great in the donor truck, I even drove the donor truck for half an hour before we pulled it,

I’m thinking a big vaccum leak might cause it but I don’t recall the Cummins usually vaccum as an idle control

I would say it was the person who swapped the engine is the problem... :poke:
 

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