Question about LML

[Don Alonzo]

Hi everyone. I have a 2015 GMC 3500 deleted without any added power. I do have a lift pump and cold air intake, but no other mods. I was pulling my RV and had a strong vibration, tons of white smoke and moderate power loss. There was lots of oil on the engine and now have blow by in the oil filler. See attached video. Any suggestions?

 

[TheBac]

Codes?

Time to do a compression test.

 

[Don Alonzo]

PO272, 275 and 278

 

[NC-smokinlmm]

Sounds like you cracked a piston. Why is your fuel filter on the drivers side of the motor? Did the truck have twins on it at one time?

 

[NC-smokinlmm]

Might have had an injector hang open and burn a hole thru a piston as well.

 

[2004LB7]

Sounds like you cracked a piston. Why is your fuel filter on the drivers side of the motor? Did the truck have twins on it at one time?

interesting filter location. I kinda like it. seems much easier to get to

and I agree, sounds like a cracked piston

 

[Don Alonzo]

Sounds like you cracked a piston. Why is your fuel filter on the drivers side of the motor? Did the truck have twins on it at one time?

No, I put a relocation kit on. Best 150.00 I ever spent.

 

[Nate’s Dmax]

Sorry to say it but your engine is toast like the others said. Rebuild or another engine will be required. Most likely an injector stuck.

 

[NC-smokinlmm]

How many miles are on the truck?

 

[Don Alonzo]

163,000

 

[2004LB7]

time to put a boroscope down the injector holes. or just pull the heads. I'd start looking around your area for a used engine you can swap it out with. probably easier then rebuilding yours

 

[NC-smokinlmm]

You can buy a new short block from GM and swap everything over and roll out.

 

[gmc502]

No, I put a relocation kit on. Best 150.00 I ever spent.

sorry about the engine troubles

who's kit did you get?