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Old 04-01-2008, 09:55 PM   #1 (permalink)
pl_silverado
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White/Gray Smoke under heavy acceleration

So i finally got my truck, and i notice that under heavy acceleration it blows out white/grayish smoke.

I was thinking injectors, but the balance rates on the predator are all within spec. Coolant level stays the same. I have not noticed any fuel in the crankcase either.

Under regular driving conditions, everything is fine, but when i get on it, it blows some smoke...

Predator is on 65hp.


Any ideas? 02 with 115k miles on it.

The truck sat for a quite a while, i put fresh fuel in it and powerservice and i thought it made it better. Im going to change the fuel filter and see if that helps any.
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Old 04-01-2008, 11:07 PM   #2 (permalink)
D.Camilleri
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Replace the fuel filter and fill it half way up with power service. This will give a super clean to the injectors and might help clean them up.
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Old 04-02-2008, 07:47 AM   #3 (permalink)
pl_silverado
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^ i will try that.
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2003 BMW M5

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2007 GMC 2500HD CCSB LBZ
2007 Chev Silverado 3500 CCLB SRW LBZ
2006 GMC 3500 CCLB Dually LBZ/6spd Ali
2003 Chevy CCLB
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2002 Chevy CCSB LB7
2001 Chevy CCSB
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2002 Suburban 2500
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Old 04-02-2008, 10:03 PM   #4 (permalink)
pl_silverado
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62 views and only one idea/suggestion?
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2003 BMW M5

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2007 GMC 2500HD CCSB LBZ
2007 Chev Silverado 3500 CCLB SRW LBZ
2006 GMC 3500 CCLB Dually LBZ/6spd Ali
2003 Chevy CCLB
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2002 Chevy CCSB LB7
2001 Chevy CCSB
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2002 Suburban 2500
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Old 04-03-2008, 09:32 AM   #5 (permalink)
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maybe try returning it to the stock tune and go out and romp on it to see if it still blows the gray smoke, if it doesnt then id say its from the tuner. with my hypertech mine blows grayish smoke, not black like guys with PPE's or edge's, i just figured its cause its extra fuel from the tune but not enough to really be black like the big tunes. i also dont have any injector symptoms so thats why it never worried me.
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Old 04-03-2008, 09:05 PM   #6 (permalink)
pl_silverado
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No, it did it stock. I just put the tune on yesterday to try and get some of that black smoke instead, but i think i need to straight pipe it and bump it up to 85hp like my last truck
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2007 GMC 2500HD CCSB LBZ
2007 Chev Silverado 3500 CCLB SRW LBZ
2006 GMC 3500 CCLB Dually LBZ/6spd Ali
2003 Chevy CCLB
LB7
2002 Chevy CCSB LB7
2001 Chevy CCSB
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2002 Suburban 2500
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Old 04-03-2008, 09:40 PM   #7 (permalink)
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I had injector problems on my 03 because of having it "juiced up". Alot of that was because of being a kid I guess. Ever since then I have ran bone stock and have had no problems. These trucks in stock form have more than enough power. People have to remember that they are just pick-up trucks. They are not meant to move mountains. I truly believe pumping more horsepower into them creates nothing but more problems. When you want more horsepower be prepared to pay for it. My truck is an every day driver and with diesel as high as it is as well as other maintenance costs,I can't see putting all of that extra money into it just so I can pull something a little harder and faster and use that much more fuel. At the end of the day I believe I would just be wasting my money.
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Old 04-03-2008, 09:42 PM   #8 (permalink)
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Quote:
Originally Posted by OSU D-MAX View Post
I had injector problems on my 03 because of having it "juiced up". Alot of that was because of being a kid I guess. Ever since then I have ran bone stock and have had no problems. These trucks in stock form have more than enough power. People have to remember that they are just pick-up trucks. They are not meant to move mountains. I truly believe pumping more horsepower into them creates nothing but more problems. When you want more horsepower be prepared to pay for it. My truck is an every day driver and with diesel as high as it is as well as other maintenance costs,I can't see putting all of that extra money into it just so I can pull something a little harder and faster and use that much more fuel. At the end of the day I believe I would just be wasting my money.
thanks Dad...
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ATS E-POWER TUNER set on level 9 for now
Merchantized Stage 3 tranny by Eric at MA
coming soon: exhaust, lift pump
450 HP / 750 TQ on superflo dyno 7/19/08 (ATS on level 10)

98 Honda Foreman 450ES 4x4, HMF pipe, K&N filter, jetted carb, 26" Super Swamper Vampire ASX tires
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Old 04-03-2008, 09:52 PM   #9 (permalink)
OSU D-MAX
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Let me guess. Dad payed for your way and now that your wasting his money on trying to turn your truck into a corvette he is trying to tell you otherwise and you want no part of it. All because you are a know it all kid who uses his truck to make up for the lack of size in another area.
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Old 04-03-2008, 10:33 PM   #10 (permalink)
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Quote:
Originally Posted by OSU D-MAX View Post
I had injector problems on my 03 because of having it "juiced up". Alot of that was because of being a kid I guess. Ever since then I have ran bone stock and have had no problems. These trucks in stock form have more than enough power. People have to remember that they are just pick-up trucks. They are not meant to move mountains. I truly believe pumping more horsepower into them creates nothing but more problems. When you want more horsepower be prepared to pay for it. My truck is an every day driver and with diesel as high as it is as well as other maintenance costs,I can't see putting all of that extra money into it just so I can pull something a little harder and faster and use that much more fuel. At the end of the day I believe I would just be wasting my money.
Actually, many use a tuner to improve efficiency and fuel mileage while towing or unloaded...not decrease it. And, I don't know of many people who associate tuners with injector problems. Perhaps you'd be so kind as to inform all of us what kind of "juiced-up" POS tune you were running that ruined your injectors...

By the way, why come on here and say something stupid like that post? Whether you know or not, probably 95% of members here run tuners of some sort, and are darn satisfied with them. Hell, I'm down right tickled pink with mine. Have been for 100K miles. And you had one bad experience with a Duramax and come here to preach at us about how bad tuners are? Please spare us all. And let me guess, the know-it-all dealership tech you've been going to for years told you that the tuner made your injectors bad...congrats...you just got screwed out of a warrantied injector replecement.
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