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2019 Sierra 6.2L PIP5606- Bent Pushrod

GormanAZ
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GormanAZ Enthusiast

GormanAZ

Posted
Posted

Our truck with only 6,200 miles bent a pushrod already.  We are concerned as the dealership already had a notice of the known issue.  They fixed it but worried it was not a real fix, just a replacement of the defective design. Has anyone else had this problem on the new 2019 Sierra 6.2L.  Would love to know how big an issue this is.

 

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Sierra Dan
Sierra Dan

Anything mechanical can fail at any point in time. GM has cranked out hundreds of thousands of these L83, L86, L84 and L87 engines since 2013 I would say yours is an exception to the longevi

eccan
eccan

I have a 2016 Yukon XL Denali 6.2l  that bent a pushrod at 67,000 miles (just out of power train warranty)  Replaced the pushrod and rocker arm.  Now at 71,000 have 2 stuck lifters and a dead cam.  De

Thomcat
Thomcat

Not the same architecture, changes in internal design and operation.   Half the AFM cylinders use collapsible lifters and half solid, all the DFMs use all collapsible and it is the solid one

lt1z Enthusiast

lt1z

Posted
Posted

Nope. Im at 6200 too. No issue as of now. If that did happen Id just have a set of 11/32” .095 wall pushrods made in the correct length vs dealing with the dealer/GM.

eppieguy Senior Enthusiast

eppieguy

Posted
Posted

6800 miles on my 62, so good so far! 

Sierra Dan Senior Enthusiast

Sierra Dan

Posted
Posted
55 minutes ago, SkiDooNick700 said:

Seems the issue is still there even from the L86 in K2 trucks lol. Fantastic.

Because the engines are the same architecture.

Only real difference is instead of shutting down 4 cylinders with (AFM)  L83, L86...… the T1 engines

with (DFM) L84, L87 can run on as little as 1-2 cylinders.

SkiDooNick700 Enthusiast

SkiDooNick700

Posted
Posted
20 hours ago, Sierra Dan said:

Because the engines are the same architecture.

Only real difference is instead of shutting down 4 cylinders with (AFM)  L83, L86...… the T1 engines

with (DFM) L84, L87 can run on as little as 1-2 cylinders.

Right... so is it a design flaw then in engine architecture or defective parts? Or just a one off? 

Sierra Dan Senior Enthusiast

Sierra Dan

Posted
Posted

Anything mechanical can fail at any point in time.

GM has cranked out hundreds of thousands of these L83, L86, L84 and L87 engines since 2013

I would say yours is an exception to the longevity of others out there.

If it were a design flaw we would be hearing this from other members daily I suspect.

As they say, S*** happens.

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smit303 Enthusiast

smit303

Posted
Posted

8600 miles. No problem with 6.2. averaging 17.4 mpg. Skewed a little because of a long FL trip, and one to NC OBX. I was averaging 16.5 with about 50/50 highway and rural/city.

  • 8 months later...
eccan Enthusiast

eccan

Posted
Posted

I have a 2016 Yukon XL Denali 6.2l  that bent a pushrod at 67,000 miles (just out of power train warranty)  Replaced the pushrod and rocker arm.  Now at 71,000 have 2 stuck lifters and a dead cam.  Dealer wants $4,100 to repair, but GM will pay 25% because I am a "valued" customer!    Pretty crappy for an $80K ride.

 

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f8l vnm Senior Enthusiast

f8l vnm

Posted
Posted

WOW! Last time i heard this was on my 2001 Camaro LS1!!!!  Good luck brother! 

Colossus Senior Enthusiast

Colossus

Posted
Posted

How did you manage to do that on a LS1 Camaro?  Good grief!  What were you doing!? 

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