Short block purchase

[swathdiver]

I think you guys have convinced me to look onward. Should I start a new advise post or put it in this one? Basically knowing I have a non deleted 11 LC9 with 184ish k miles and a repeated number 8 misfire that comes and goes after plug replacement what are my next steps. Buy a stock 6.0 for a little more power, get another 5.3 and rebuild it?

I would find out why #8 is misfiring. Proper diagnostics will reveal that. I doubt you need a whole new motor.

 

[flynn78us]

I would find out why #8 is misfiring. Proper diagnostics will reveal that. I doubt you need a whole new motor.

That’s the plan moving forward.

 

[Geotrash]

Can’t find the procedure @dojetman did? Is there a link?

Slight misspelling in his username. I'll correct here and see if we can raise the genie. @donjetman

 

[donjetman]

That’s the plan moving forward.

Combustion chamber/piston soak, install pressure relief valve deflector, install catch can, and install new improved driverside valve cover as perscribed in GM technical service bulletin: https://f01.justanswer.com/ebrock63...il+Consumption,+MIL+ON,+Engine+Runs+Rough.pdf
also
do a search here with my user name and find all the threads I did back in late 2018.

 

[flynn78us]

Combustion chamber/piston soak, install pressure relief valve deflector, install catch can, and install new improved driverside valve cover as perscribed in GM technical service bulletin: https://f01.justanswer.com/ebrock63...il+Consumption,+MIL+ON,+Engine+Runs+Rough.pdf
also
do a search here with my user name and find all the threads I did back in late 2018.

Thanks!

 

[j91z28d1]

you're not around Saginaw are you? there a guy a few threads up that's probably about to sell off a hybrid with a aluminum 6.0 in it that most likely has very little wrong with it but a broken exhaust manifold bolt and a oil pressure sensor. for less then your guy wanted for a 5.3 with a cam.
these forums are rough to read sometimes.

 

[flynn78us]

you're not around Saginaw are you? there a guy a few threads up that's probably about to sell off a hybrid with a aluminum 6.0 in it that most likely has very little wrong with it but a broken exhaust manifold bolt and a oil pressure sensor. for less then your guy wanted for a 5.3 with a cam.
these forums are rough to read sometimes.

I’m close enough if the deal is right

 

[j91z28d1]

I’m close enough if the deal is right

he posted he's selling it, or donating it.

2008 GMC Yukon 1/2 ton SL hybrid for sale by owner - Saginaw, MI - craigslist

First, let me talk you out of this vehicle. 230,000 total miles. Engine does not hold oil pressure - most likely needs new engine. Hail damage from Texas hail storm. Typical cracked dashboard of GMC...

saginaw.craigslist.org

probably best to pm him. you can probably sell the tranny as they don't repair them anymore and the hybrid battery is fresh. I'd say it would sell quickly too, just to hard to ship a 100lb battery. so that is only if you find someone that needs it.

if I was local, I'd buy it.

 

[flynn78us]

Combustion chamber/piston soak, install pressure relief valve deflector, install catch can, and install new improved driverside valve cover as perscribed in GM technical service bulletin: https://f01.justanswer.com/ebrock63...il+Consumption,+MIL+ON,+Engine+Runs+Rough.pdf
also
do a search here with my user name and find all the threads I did back in late 2018.

Is there a good write up on the piston soak? I guess I don’t understand how to get the ounces in the engine in an effective enough way to make any difference. I did alot
In diesel engine stuff on active duty but nothing like this.

 

[donjetman]

I removed all the spark plugs and oil pan drain plug, squirtted in a few ounces of the solvet in each SP hole. Then every 12 hrs or so put a socket on the crankshaft bolt a moved the crank back a forth a little, then replenish ea cylinder with solvent again.

After 48 hrs or so I put towels over each side of the engine and cranked over the engine with the starter 5 or 10 revolutions to remove the solvent from the cylinders.
Put SP and drain plug back in, filled with cheap oil and filter, drove it for 100 miles or so, did a dump and fill with good oil and filter.

This piston/combustion chamber soak, and the new improved valve cover, immediately cured my stuck piston rings and oil consumption problem completely. Today, 5+ yrs and 65k miles later with 196k miles, no oil consumption

Here is 1 of the many threads I did back then:
https://www.tahoeyukonforum.com/thr...tor-oil-consumption-tsb-10-60-10-008m.108493/