2009 Yukon Denali 6.2 L9H Engine Replacement

[swathdiver]

I could probably drive it there and it would make it. I’m just really bummed I’m in this situation so quickly after buying this thing. The past few weeks have been super tough.

Yeah, it sure is a bummer. But once done and gone over, you won't have to think about it for a long time.

Our corporate knowledge teaches us that when the 6.2s get overheated, they tend to drop a valve guide. The earlier 2007-2008 6.2s had a habit of breaking a valve spring on #7 or #8 at around 165K miles more often than the later years. If the engines were fed a steady diet of 87 instead of 93, by about 100K miles they were breaking pistons and piston rings.

That said, they are great motors, have two of them in my pickups and going to someday put one in my Yukon XL.

 

[KraftMatic87]

I'd say change the oil and put in 15w-40 to drive down, and keep the rpms low and engine load low. Denver to CO springs isn't too bad of a drive if I remember correctly. It may make it.

Or put 20w-50 in it and trade it.........I'm not really serious, but it could be an option. I had an acquaintance 20 years ago that put 80w-90 in an old camaro to mask the rod knock when he got rid of it. I could never do that to a person........maybe a shady dealership though.

I did trade in a 2009 Denali because all of a sudden it started drinking oil on a road trip. It was a beautiful black XL. But, I was tired of the piston slap that never went away and dropped it like a bad habit for a pristine 2017 Denali. I don't feal bad because the salesman said it would go to auction because it had 165k. Somebody got a nice truck for pennies I'm sure and put a motor in it.

I have a beautiful black XL! Only issues on the inside is one of my doors sometimes doesn’t unlock and chrome coming off door handles. I think it is totally worth saving. My family really like riding in it and it would be a shame to let it go.



I think that my truck is having an oil consumption issue and the rod knock is because it’s gotten too low on oil before. If i tried to sell this thing to CarMax I’d be lucky to get $3k - $4k. I want to see if it’s possible to get either a rebuild or new engine put in.

Interesting idea with your friend doing that trick with his Camaro lol

 

[B-train]

Yeah, it sure is a bummer. But once done and gone over, you won't have to think about it for a long time.

Our corporate knowledge teaches us that when the 6.2s get overheated, they tend to drop a valve guide. The earlier 2007-2008 6.2s had a habit of breaking a valve spring on #7 or #8 at around 165K miles more often than the later years. If the engines were fed a steady diet of 87 instead of 93, by about 100K miles they were breaking pistons and piston rings.

That said, they are great motors, have two of them in my pickups and going to someday put one in my Yukon XL.

Interesting tidbit about the piston rings. The guy I bought the 2009 from in Texas said it had piston slap from day one and GM wouldn't do anything about it. After dealing with him I realized his a sheister (owns a construction company, go figure) because maintenance wasn't his strong point.

That may explain piston slap that NEVER went away and then turned into an oil burner after a hard run.

If you ever see a 2020 black escalade for sale in the future from the Dallas area from a guy who owns stated company beware....LOL

 

[KraftMatic87]

Yeah, it sure is a bummer. But once done and gone over, you won't have to think about it for a long time.

Our corporate knowledge teaches us that when the 6.2s get overheated, they tend to drop a valve guide. The earlier 2007-2008 6.2s had a habit of breaking a valve spring on #7 or #8 at around 165K miles more often than the later years. If the engines were fed a steady diet of 87 instead of 93, by about 100K miles they were breaking pistons and piston rings.

That said, they are great motors, have two of them in my pickups and going to someday put one in my Yukon XL.

Interesting. I’ve been putting only premium in this thing and I’ve only driven it about 700 miles since I’ve owned it. No issues other than this noise I’ve been trying to troubleshoot. The previous owner clearly did not do some critical maintenance because there are oil leaks. They probably might have been using regular fuel. Bummer for me!

 

[B-train]

I have a beautiful black XL! Only issues on the inside is one of my doors sometimes doesn’t unlock and chrome coming off door handles. I think it is totally worth saving. My family really like riding in it and it would be a shame to let it go.

View attachment 402042

I think that my truck is having an oil consumption issue and the rod knock is because it’s gotten too low on oil before. If i tried to sell this thing to CarMax I’d be lucky to get $3k - $4k. I want to see if it’s possible to get either a rebuild or new engine put in.

Interesting idea with your friend doing that trick with his Camaro. Let’s hope it doesn’t come to that but I’m not beyond doing it so I can trade it in for a different car.

Just put your plate into the carmax site and see what happens (instant offer). You might be better off dumping it and getting a similar truck depending onnwhat the outcime is. I feel your pain, totally sucks.

 

[KraftMatic87]

Just put your plate into the carmax site and see what happens (instant offer). You might be better off dumping it and getting a similar truck depending onnwhat the outcime is. I feel your pain, totally sucks.

I got an offer of $6k. But I know I would get less. We sold our oil burning Subaru there they offered us $9k and when they inspected lowered it to $7k when they found some other issues that were definitely there like frame damage from an accident. If I got $4k maybe I could accept that but I’d still be out a vehicle. Seems like it might be too much for me to invest but I’m trying to stay positive.

 

[B-train]

I got an offer of $6k. But I know I would get less. We sold our oil burning Subaru there they offered us $9k and when they inspected lowered it to $7k when they found some other issues that were definitely there like frame damage from an accident. If I got $4k maybe I could accept that but I’d still be out a vehicle. Seems like it might be too much for me to invest but I’m trying to stay positive.

80w-90 is cheap man......LOL

 

[KraftMatic87]

80w-90 is cheap man......LOL

If that's my best option than I'm really in trouble here lol

 

[B-train]

I sold my 2018 Sierra to Carvana when prices went up in 2021. It had 14k on it because I never drove it. I got $3500 less than what I paid for it 19 months earlier.......should've held out another 3 months in hindsight.

But, they had all this lingo about a test drive, etc in the paperwork. A ************ adult showed up with a rollback to pick it up. I asked about all the stuff and he said with 14k I'm not worried about anything........and them proceeded to try and load it on a slippery aluminum bed in 2wd. Hilarious.

Maybe that's an option for you. Spiff er up with new "amended oil" and let it ride. I wouldn't feel bad because I'm sure they made a 10k profit on my truck for nothing other than a wash. It was PRISTINE.

 

[B-train]

I sold my 2018 Sierra to Carvana when prices went up in 2021. It had 14k on it because I never drove it. I got $3500 less than what I paid for it 19 months earlier.......should've held out another 3 months in hindsight.

But, they had all this lingo about a test drive, etc in the paperwork. A ************ adult showed up with a rollback to pick it up. I asked about all the stuff and he said with 14k I'm not worried about anything........and them proceeded to try and load it on a slippery aluminum bed in 2wd. Hilarious.

Maybe that's an option for you. Spiff er up with new "amended oil" and let it ride. I wouldn't feel bad because I'm sure they made a 10k profit on my truck for nothing other than a wash. It was PRISTINE.

What's up with the censor? I said a B A R E L Y. (Probably early 20's at best)