2015 Yukon Denali dropped lifter at 77k miles

[SuperOldSchool]

Filled up at gas station and pulling back out onto the road when I get a flashing CEL, stabilitrack and rough running engine.

Got it 2 miles home and called dealer in am. Said to have it towed in.

#6 cylinder had a failed lifter. Replaced under warranty.

Now notice a coolant smell. Not sure if it’s just some that leaked out during the repair and it’s burning off the motor or if their head gasket replacement was done poorly.

I am going to call dealer and have them note the smell starting after this repair so it’s recorded. I’ll see if the smell is still there in about a week and report back...

Dealer was great , no hassles, just replaced under power train warranty . I asked what the out of pocket would have been. They told me $3500.

These trucks will suck you dry on repairs once warranty is up...

 

[SuperOldSchool]

Car is back from dealer and runs fine. They asked me to drop it back there to check for coolant leaks due to the new coolant smell.

Also now getting nonstop error messages to check:

Park assist
Trailer braking
Side detection
Airbag
Theft deterrent
Rear camera

So.... something is shorted or loose .

This vehicle is amazing when it runs well, but man, so many issues.

I really wish Toyota or Honda made a similarly sized truck to the XL. The Honda, Toyota and Nissan vehicles I have owned were leaps and bounds better with reliability. Routine maintenance was all that was ever needed.

 

[ChrisYukon]

$3,500? That’s why you take stuff like that to a local mechanic rather than the dealer. (Once it’s out of warranty.)

 

[SuperOldSchool]

Yes, I would have , but it was covered and I wanted to know what the dealer would sting you for, so I asked.

The error messages were due to a failed neg battery cable. Was yielding too much resistance and causing sensor issues.

 

[Atlantic47]

Filled up at gas station and pulling back out onto the road when I get a flashing CEL, stabilitrack and rough running engine.

Got it 2 miles home and called dealer in am. Said to have it towed in.

#6 cylinder had a failed lifter. Replaced under warranty.

Now notice a coolant smell. Not sure if it’s just some that leaked out during the repair and it’s burning off the motor or if their head gasket replacement was done poorly.

I am going to call dealer and have them note the smell starting after this repair so it’s recorded. I’ll see if the smell is still there in about a week and report back...

Dealer was great , no hassles, just replaced under power train warranty . I asked what the out of pocket would have been. They told me $3500.

These trucks will suck you dry on repairs once warranty is up...

 

[Atlantic47]

My 2015 Yukon Denali had the exact same problem. Unfortunately this was during the strike and parts were not available. I was told that there was a redesign on the lifters on the side that went out. I was also told more than a month later that the new design lifter was put in on the entire side. Was told that gm gives an additional two years on the new parts. Anyone with the 2015 should expect this problem. Just hope it happens before the 100,000 mile mark. Good luck!

 

[sealandsky]

Filled up at gas station and pulling back out onto the road when I get a flashing CEL, stabilitrack and rough running engine.

Got it 2 miles home and called dealer in am. Said to have it towed in.

#6 cylinder had a failed lifter. Replaced under warranty.

Now notice a coolant smell. Not sure if it’s just some that leaked out during the repair and it’s burning off the motor or if their head gasket replacement was done poorly.

I am going to call dealer and have them note the smell starting after this repair so it’s recorded. I’ll see if the smell is still there in about a week and report back...

Dealer was great , no hassles, just replaced under power train warranty . I asked what the out of pocket would have been. They told me $3500.

These trucks will suck you dry on repairs once warranty is up...

Filled up at gas station and pulling back out onto the road when I get a flashing CEL, stabilitrack and rough running engine.

Got it 2 miles home and called dealer in am. Said to have it towed in.

#6 cylinder had a failed lifter. Replaced under warranty.

Now notice a coolant smell. Not sure if it’s just some that leaked out during the repair and it’s burning off the motor or if their head gasket replacement was done poorly.

I am going to call dealer and have them note the smell starting after this repair so it’s recorded. I’ll see if the smell is still there in about a week and report back...

Dealer was great , no hassles, just replaced under power train warranty . I asked what the out of pocket would have been. They told me $3500.

These trucks will suck you dry on repairs once warranty is up...

Like most (or all) current vehicles). My first car was a 1970 Toronado - pretty simple, did all repairs and service myself. Nowadays, not so much!