3.0L duramax smoking bad HELP

gemarsh · June 9, 2021

5 hours ago, Dersch said:

UPDATE

So help me out here... whenever you guys drive your truck today. Take two seconds before shutting it off and see if yours smokes like mine. Cause im not convinced...

Well I'll be a monkeys uncle, mine is warmed up, just got done pulling a 9000# load 20 miles, so any condensation would be dried up and at idle, it has blow-by to beat hell.

9967 miles, olm says 67% left. Oil level full.

Guess I won't be pulling the dipstick out while it's running, from now on. Out of site, out of mind.

Did a cai about 3k miles ago. Air tube to turbo was non-oily.

Dersch · June 9, 2021

42 minutes ago, gemarsh said:

Well I'll be a monkeys uncle, mine is warmed up, just got done pulling a 9000# load 20 miles, so any condensation would be dried up and at idle, it has blow-by to beat hell.

9967 miles, olm says 67% left. Oil level full.

Guess I won't be pulling the dipstick out while it's running, from now on. Out of site, out of mind.

Did a cai about 3k miles ago. Air tube to turbo was non-oily.

Hmmm. Interesting.

Side note... how you like the CAI?

gemarsh · June 9, 2021

2 hours ago, Dersch said:

Hmmm. Interesting.

Side note... how you like the CAI?

No complaints. Installed an old school filter minder being instructions said to disable the one in the dic.

Dersch · June 13, 2021

On 6/9/2021 at 5:45 PM, gemarsh said:

No complaints. Installed an old school filter minder being instructions said to disable the one in the dic.

Did it do anything for sound or mpg?

wheels619 · July 26, 2024

im having the same issue for my 21 3.0 lm2. was there any issues found by the dealer ever? how is it running now? that isnt normal. my truck didnt do that up until a few days ago when i noticed white smoke coming from my exhaust. checked the cap and it billowed out. didnt do it before truck now has 43000 miles on it and the dealer charged me 230 for even diagnosing the ossue said it would be at least a week before they diag it and get me a rental. woman taking my truc in said the video i showed her wasnt normal.