Oregon Chapter President
Join Date: Nov 2007
Location: Hubbard, OR
Thanked 138 Times in 122 Posts
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Honestly, I thought mine was messed up too when I noticed that it did the same thing, but I have a feeling it's some sort of programming that keeps it from barking the turbo. Mine does the exact same thing as you described. I have no white smoke except for a very faint puff upon start up, and once in awhile while sitting at a light I see a faint hint of light smoke haze. Never gain oil, however I burn about a 1/2 quart every 5000 miles. Mine also sometimes has a stutter while at idle, like it skips a beat then tries to catch back up. Kinda weird.
My old work also had a 2005 that did the same thing. I checked it out after I noticed mine doing it. Same exact results. So my conclusion is it had to be fuel mapping/programming in the ecu/ecm.
So far, I've had the truck since November 2010, and the mileage has been a consistent 15-16mpg around town, and maybe on a good tank 16-17mpg on the freeway. But average is 16mpg.
THE S.O.L.I.D CREW and temporarily truckless.
Sold: 1990 Reg Cab, AT, 4x4, 197k, Chassis Unlimited Crossover kit, D400CS springs front, DIY4X shackle flip rear, Nitro shocks, home ground pin, and a ton of body work.
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Last edited by Electric_Cowboy; 08-17-2011 at 12:57 AM.