2003 chevy smoking - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 10 (permalink) Old 10-23-2010, 02:30 AM Thread Starter
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2003 chevy smoking

This is my first post on this forum so go easy on me.I have a 03 chevy duramax with 98 thousand miles and it started to smoke allot out of the tail pipe in the few days.The smoke looks to be blue in color.There are no check engine lights on and the truck seems to run good.I had to park the truck today because the smoke got to bad.I am thinking a bad turbo.What do you guys think.
Thanks in advance
Johnny
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post #2 of 10 (permalink) Old 10-23-2010, 07:41 PM
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Welcome to the bad injector club.

1995 GMC 2500 SUBURBAN, DURAMAX/ALLISON, 3.42 gears, 261 T-case, Trans has a mild build with ALOT of help from MIKE L. which included ALTO's for C1-C4, PI ML converter, DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, EFILIVE, KENNEDY single pump, pump rub kit

http://www.thetruckstop.us/forum/showthread.php?t=10142
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post #3 of 10 (permalink) Old 10-23-2010, 09:27 PM
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my 03 also smokes the dealer said it was dirty injectors and it didn't qualify for the special injector warranty. I would take it to the dealer and have them do a check on them you might get lucky and get new set of injectors for free. My buddy has an 01 and just got new injectors for his and didn't pay a dime. good luck
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post #4 of 10 (permalink) Old 10-24-2010, 02:10 AM Thread Starter
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2003 chevy smoking

Thanks guys for the reply and suggestions.You guys dont think it could be bad turbo seals.
Johnny
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post #5 of 10 (permalink) Old 10-24-2010, 02:58 PM
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blue smoke usually indicated a cracked injector body, i would check your crank case as well to make sure your not making any oil, the injectors in the LB7 are under the valve covers and if one cracks above the o-ring it can dump fuel into the oil as well

but in most likelyhood you have a cracked injector body, it is quite common on the LB7, and GM enacted an extended warranty of 200k miles or 7 years

Take it to a TRUSTED Dealer, i wish you good luck

Aaron the Crazy Canuck
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post #6 of 10 (permalink) Old 10-24-2010, 03:05 PM Thread Starter
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blue smoke usually indicated a cracked injector body, i would check your crank case as well to make sure your not making any oil, the injectors in the LB7 are under the valve covers and if one cracks above the o-ring it can dump fuel into the oil as well

but in most likelyhood you have a cracked injector body, it is quite common on the LB7, and GM enacted an extended warranty of 200k miles or 7 years

Take it to a TRUSTED Dealer, i wish you good luck
The truck has like 98,000 miles on it and it's at the seventh year.I'm holding my breath.Thanks for the reply.
Johnny
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post #7 of 10 (permalink) Old 10-25-2010, 04:03 PM Thread Starter
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2003 smoking

Well I got in touch with gm and they told me I am s--t out of luck because the truck was bough in nov of 02 so i missed it by about 10 months .So if this comes out of my pocket what would you guys suggest I do.Reinstall stock size injectors or bump them up a notch.I would love to keep my mileage the same but a little more power would be nice,I also have a edge system.
Thanks Johnny
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post #8 of 10 (permalink) Old 10-25-2010, 08:07 PM
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Well I got in touch with gm and they told me I am s--t out of luck because the truck was bough in nov of 02 so i missed it by about 10 months .So if this comes out of my pocket what would you guys suggest I do.Reinstall stock size injectors or bump them up a notch.I would love to keep my mileage the same but a little more power would be nice,I also have a edge system.
Thanks Johnny
buy 50hp over stock, same price

Nate

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post #9 of 10 (permalink) Old 10-25-2010, 10:07 PM Thread Starter
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buy 50hp over stock, same price

Nate
Thanks Nate for the info,Where is the cheapest place to buy bosch injectors.
Johnny
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post #10 of 10 (permalink) Old 10-25-2010, 11:41 PM
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Thanks Nate for the info,Where is the cheapest place to buy bosch injectors.
Johnny
http://tcdiesel.com/DuramaxInjectorPricing.aspx

t&c is a great company, buddy of mine just got one of thier wild rails for a 5.9 CR, and it made a crazy difference...

they have good prices...the 30% overs are the same as 15% (50hp)...even if you want the 15% they are II Dragon Flys and $40 cheaper then from II directly....

there is a place here at home that has 15% and Stocks for $275 each...but they dont have a web site, and idk what brand they are...it only takes a bit more to go first class...

Nate

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