its a mystery....

 

lol i know

 

What color was the smoke? White, blue, jet black or brown?

 

it was like a haze of blackish gray ish idk lol.

 

regular smoke haze,

 

yeah i guess lol. idk how to tell it was in my rear view and looked like normal diesel smoke to me lol

 

it shouldnt smoke that much, even for LB7, my LBZ will make a very faint puff if i nail it off the bottom, how much is it actually smoking?

 

Some LB7s smoke like that when you nail it, especially if the trans hasnt downshifted yet and you slightly bog the motor.

 

well from my experience, i followed my gf's dad on a 1200km trip and he was hauling a camper, and has a diablosport predator and he would only smoke a, little when he was chugging up a hill.... it didnt smoke too much...

 

Mine always had a little puff @ take-off, now it's a little more with the stock tune. I'm thinking it has to do with the 315's and the fact that I haven't run the stock tune in over two years.

 

My trucks does the exact same thing every once in a while when I floor it. Mostly going up a hill. My guess it its just the normal diesel side effect. I've never had any problems in 50K miles so I believe its normal. :happymugs

 

You guys do know you're all describing "lugging" or "loading down" the engine, dont you?
Diesels will smoke some when you lug them. IMO, its normal.

 

Well then great minds think alike. :thumbsup

 

got some bad news. truck starting idling rough a week ago and now its got a few bad injectors:bang

 

warranty!!!! lol, make sure they replace them all

 

warranty covered 4. we paid for 4. now it runs like a brand new truck

 

Warrenty is supposed to pay for all four. Submit the bill of the four you payed for to GM and they should pay you back. Last I checked, GM had not changed this policy.

 

okay thanks guys ill have to give them a call tomorrow and talk to them about it. that would help out alot. thats alot of money to pay in this economy

 

Will warranty replace the injectors more than once on the 7 year 200k policy? My local stealership says "no way" but I would like a second opinion.

 

Yes, they should replace them as many times as needed up until the warranty limits. A guy at work has had 2 complete sets replaced under warranty.

 

as far as i know they should... try at another dealer and see what they say :thumbsup