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Technical Info: 3rd Generation: NON-DRIVETRAIN Technical discussion of third generation (2003 - 2006) non drivetrain questions, solutions and upgrades. Please -- DO NOT post drivetrain discussions in this forum!
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  #1  
Old 03-15-2008
ctd rob b ctd rob b is offline
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Default cummins blowing a lot of blue smoke on start up

05 cummins blowing a lot of blue smoke on start up and at idle for a long period of time only at idle not driving any clue would help So Takean the truck to the shop tomorrow so they can tell me my "muffler bearings" are bad but I think it is a bad injector. but still would like to know what you guys think.and i will let you know.
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Old 03-16-2008
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CaptainCummins CaptainCummins is offline
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Default Re: cummins blowing a lot of blue smoke on start up

How many miles? Check the intake hoses for signs of the turbo passing oil.
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Old 03-16-2008
ctd rob b ctd rob b is offline
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Default Re: cummins blowing a lot of blue smoke on start up

50,000 it idels rough to
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Old 03-17-2008
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Default Re: cummins blowing a lot of blue smoke on start up

do you idle a lot?
auto trans or manual?
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Old 03-17-2008
ctd rob b ctd rob b is offline
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Default Re: cummins blowing a lot of blue smoke on start up

no not realy its an auto
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Old 03-17-2008
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Default Re: cummins blowing a lot of blue smoke on start up

if you do not have the high idle enabled and used when stopped for periods it WILL clog the injectors and be a syptom of what you are describing now idleing kills these 3 gens they do not keep enough heat in the cylinders at idle to burn good
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06 dodge 1/2 ton 2wd gasser 4.7 l auto [replacement for giving the son the ford]
02 lincoln ls for cruisin
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Old 03-17-2008
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Default Re: cummins blowing a lot of blue smoke on start up

Thanks I do use the high idle when it is could out for about 15-20 min at the most.
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Old 03-19-2008
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Default Re: cummins blowing a lot of blue smoke on start up

I think you got injector issue.

Try running PowerService for 1 tankful of fuel and re evaluate. If not, time to take it to dealer for warranty work.
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Old 03-20-2008
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Default Re: cummins blowing a lot of blue smoke on start up

dealer called and said that air filter is bad and fuel filter is bad I dis agree. But agree with you what do you guys think about this
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Old 03-21-2008
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Default Re: cummins blowing a lot of blue smoke on start up

When was the last time you changed the fuel filter? As for the air filter when did you last clean it? As for it being bad how did they decide that it was bad?
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