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post #1 of 4 Old 11-09-2007, 01:02 PM Thread Starter
graham_201
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Blue smoke upon startup

Ive got a 94 ram cummins 12v, and when started cold there is blue smoke coming from the exhaust. this didnt seem to happen during the summer but now in the colder fall and coming into winter its happening more often. when the truck is warmed up it seems to go away. is this a cause for concern or is this normal operation?? thanks
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post #2 of 4 Old 11-10-2007, 07:07 AM
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A coupla questions first...
How many miles are on the motor and what weight oil is in it?

'01.5 2500 4x4 Red QC Sport HO SWB, 6spd.,cowl hood, 4" ex., Edge Drag Comp, Banks boost & pyro pillar mount, single black Holley 140gph lift pump...13psi WOT, US Gage & 4 grease gun lines for fuel pressure monitor, 2% Biodiesel in the tank, Amsoil in the trans and Valvoline in the pan. Vulcan Big Line kit, Napa #2790 BHAF, cheapo fuel cooler, 7x.013" Maxstix, Cat C300 turbo 3.55 gears jes' like Ram3500Dually sez..., ARP studs,

Take time to turn so's you don't burn.
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post #3 of 4 Old 11-12-2007, 03:08 AM Thread Starter
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326000 km, and 15w-40 for oil. perhaps it is unburned fuel since its always cold when it does this, starting to get chilly here in canada overnight. any thoughts? never does this when warm.
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post #4 of 4 Old 11-12-2007, 01:51 PM
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I think you nailed it with the cold temperatures, maybe it'll improve when the winter blends are in the tanks.

'01.5 2500 4x4 Red QC Sport HO SWB, 6spd.,cowl hood, 4" ex., Edge Drag Comp, Banks boost & pyro pillar mount, single black Holley 140gph lift pump...13psi WOT, US Gage & 4 grease gun lines for fuel pressure monitor, 2% Biodiesel in the tank, Amsoil in the trans and Valvoline in the pan. Vulcan Big Line kit, Napa #2790 BHAF, cheapo fuel cooler, 7x.013" Maxstix, Cat C300 turbo 3.55 gears jes' like Ram3500Dually sez..., ARP studs,

Take time to turn so's you don't burn.
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