Dreaded 6.2 Lifter Issue

[JrOnE]

Hello,

1st post here. I have a 2017 GMC Yukon Denali XL. Right during covid, lucky me, we had the lifter issue on the vehicle. GMC covered the cost and replaced all the lifters. It took about 2 months, but they got it done. We have taken multiple cross country trips with no issue and the vehicle ran pretty good. About 2 weeks ago the vehicle started running rough while my wife was driving home. She made it home and I scanned the vehicle with my OBD2 scanner. The 0304 code popped up with Cylinder 4 misfire. I thought maybe we have a coil or sparkplug issue so I quickly changed out both parts. Scanned again and still have the same issue, nothing fixed. Realizing the issue is above my level of skill to diagnose and fix, I brought the truck to the shop. They diagnosed cylinder 4 as having 0 compression.

My question is if the lifter is shot and caused major damage, #1.What would be the cost to replace the engine? #2. If replacement is required should I buy a 6.2L engine that has the DOD/AFM deleted?

The lady at the shop threw out $15k to replace the engine. I see one I can buy for $7k with the DOD/AFM Deleted. Would there legitimately be $8k in labor?

Thanks

 

[swathdiver]

Shop time is about 15-16 hours on the previous generation. How much do they charge an hour or is the swap a flat rate job?

Where are you located?

 

[Miami-Dade]

@JrOnE Moved you here from Intro Section.
Welcome from Miami&Queens NY!

 

[JrOnE]

Shop time is about 15-16 hours on the previous generation. How much do they charge an hour or is the swap a flat rate job?

Where are you located?

I'm the Kansas City, Mo. I'm not sure how she quoted me. She seemed to just throw out $15k without much explanation. I'll know a little more later today. They were digging into the engine today.

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

You are already receiving clarifying questions from the knowledgeable folks on this Forum.