Is this amount of smoke normal?

[Ben S]

I now have 15K on my truck and it runs just fine and I have not noticed any change in fuel economy.



However, I do notice a mild amount of black smoke at start up and idle after it has sat overnight. There is always a little soot on the rear quarter and bumper next to the tailpipe. It also seems to smoke more on accleration than when I bought it... . not that I mind that so much, but those little street tuner guys might. . :-laf



Truck is going for service Monday anyway, I don't mind the smoke but just want to be sure it is not signaling a potentially bigger problem since it has increased since I bought it.



Again, the truck seems to otherwise run fine. All regular maintenance has been performed and the truck/engine are bone stock.



Thank you,



Ben

 

[PBax]

my 05 smoked sooo much stock that i could drive it like a grandpa for a few days, then LAY into it and it would smoke like crazy larry for about 2 seconds then it would clear. It will puff a small amount anytime i punch it... . when it was bone-stock anyway. Its a cloud anytime i punch it now

 

[roperteacher]

I don't get ANY smoke on my 06, not that it is abnormal for you to get any. . I change my fuel filter every 5,000 . . Has it been a while since you changed the filter? Are you running any fuel additives?

 

[Summit]

must be normal, mine does the same thing too:-laf



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[Ben S]

No fuel additives. Fuel filter changed at 10K. . using the 7 micron Fleetguard.



Truck is going in for HVAC service because the fan is messed up and the recirc door is busted.



Ben

 

[roperteacher]

You might try hittin git with a good dose of fuel additive of your choice. The Valvolene with cummins logo is a good one.