Valve cover replacement

Cornfed

1,241 posts · Joined 2014

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#2 · Jul 18, 2014

Sure, I would do it. It may or may not fix the loss of oil issue you are having but it will eliminate a known source of oil loss.

The old style valve cover has an open hole which allows oil to seep out along with the gases. The new cover has a plate over the hole which allows the gases to escape but restricts the oil flow. Doesn't stop it but reduces the oil loss greatly.

In this picture you see both old style cover with open hole and new style cover with restriction plate added.

Good luck with your project and update us on your results. Cf

 

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Mossyoakglock Discussion starter

1,717 posts · Joined 2013

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#3 · Jul 18, 2014

It is just the driver's side that the dealer ever replaces, correct?

 

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thacounty

165 posts · Joined 2014

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#4 · Jul 18, 2014

Mossyoakglock said:

It is just the driver's side that the dealer ever replaces, correct?

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Subscribed. I want to see how to do it and if it helps.

 

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Mossyoakglock Discussion starter

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#5 · Jul 18, 2014

I found this online. I would have looked in my Haynes but I'm at work. It looks pretty straight forward and easy.

It looks like it only takes maybe 10 minutes to pull off. Most of the work is getting all the other stuff out of the way.

I currently have the Range V8 so I have AFM shut off but I'm thinking the updated valve cover might help with the oil seeping.

 

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motomixr

2 posts · Joined 2015

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#6 · Mar 27, 2015

Is there any way to tell which cover is which from the outside?

Looking at a used 5.3, I'm wondering if there is some way to tell if a previous owner has installed the updated covers.

Thanks -

 

BlackZ71Silverado

1,229 posts · Joined 2012

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#7 · Mar 29, 2015

motomixr said:

Is there any way to tell which cover is which from the outside?

Looking at a used 5.3, I'm wondering if there is some way to tell if a previous owner has installed the updated covers.

Thanks -

Click to expand...

I have replaced a few of the covers but don't remember if there was some sort of different marking between the two. I think the updated cover is part #12570427. Not sure if that helps though. Driver side only needs replaced.

 

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motomixr

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#8 · Apr 3, 2015

Thanks BlackZ71, every little bit helps.

 

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ffemtmcd

3 posts · Joined 2017

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#9 · Sep 4, 2017

I know this is an old thread but I just got my 069 silverado a month ago - didn't know much about the M code engine. I was wanting to follow up on motomixr question - Is there a way to tell from the outside if valve covers been replaced?