How to remove L86/6.2 engine cover

kennerz · May 5, 2019

OK, looking for a response from someone that has actually done this. It's not just remove the 4 bolts. There at least three push clips or something of that nature on the back of the intake and I have the two on either side removed but can't get to the middle clip very easily. There is some kind of plastic mount and some other plastic running down the back. Hard to work back there and I have big hands. Are there ant tips for doing this? SO far everything is off with the exception of the back middle clip and whatever it's attached to.

Nasty · May 5, 2019

1 hour ago, kennerz said:

OK, looking for a response from someone that has actually done this. It's not just remove the 4 bolts. There at least three push clips or something of that nature on the back of the intake and I have the two on either side removed but can't get to the middle clip very easily. There is some kind of plastic mount and some other plastic running down the back. Hard to work back there and I have big hands. Are there ant tips for doing this? SO far everything is off with the exception of the back middle clip and whatever it's attached to.

You just want to remove this?

kennerz · May 5, 2019

On the 6.2 Silverado, there is a cover (not like the one pictured) that goes over the actual intake. Looks like runners on top of the real runners held down by 4 bolts on the sides and stuff I can't see on the back, and stuff on the rear is mounted to it, very little clearance, I just want to know what I'm working with that is making it difficult to remove, and all the harness connections on the side are removed and out of the way.

I don't know what I'm feeling back there and can't visualize it. got one tab still keeping it together I think and it's a bear to get it separated.

Nasty · May 5, 2019

26 minutes ago, kennerz said:

On the 6.2 Silverado, there is a cover (not like the one pictured) that goes over the actual intake. Looks like runners on top of the real runners held down by 4 bolts on the sides and stuff I can't see on the back, and stuff on the rear is mounted to it, very little clearance, I just want to know what I'm working with that is making it difficult to remove, and all the harness connections on the side are removed and out of the way.

I don't know what I'm feeling back there and can't visualize it. got one tab still keeping it together I think and it's a bear to get it separated.

I have a 5.3 and a 6.2 and i have no idea what youre talking about. Because what i posted is the "engine cover" also the 5.3 and 6.2 are pretty much identical "looking"

DenaliX14 · May 5, 2019

5 hours ago, kennerz said:

OK, looking for a response from someone that has actually done this. It's not just remove the 4 bolts. There at least three push clips or something of that nature on the back of the intake and I have the two on either side removed but can't get to the middle clip very easily. There is some kind of plastic mount and some other plastic running down the back. Hard to work back there and I have big hands. Are there ant tips for doing this? SO far everything is off with the exception of the back middle clip and whatever it's attached to.

This may help. It is meant to hold the wire harness as well as keep IAT cooler.

Move to 8:22 IT SHOWs the clips and how too.

Nasty · May 6, 2019

Oh that would be the intake manifold. Ihavent had the need to pull mine off yet. Sorry

Hillwood · May 6, 2019

11 hours ago, kennerz said:

On the 6.2 Silverado, there is a cover (not like the one pictured) that goes over the actual intake. Looks like runners on top of the real runners held down by 4 bolts on the sides and stuff I can't see on the back, and stuff on the rear is mounted to it, very little clearance, I just want to know what I'm working with that is making it difficult to remove, and all the harness connections on the side are removed and out of the way.

I don't know what I'm feeling back there and can't visualize it. got one tab still keeping it together I think and it's a bear to get it separated.

That cover is part of the intake manifold. It stays on the manifold.

Why are you trying to take it off?

JONBLARC7 · May 6, 2019

I'm getting ready to do this to my truck. From what I've found on the internet, There are three plastic clips holding on to the back of the cover. I heard is was a real bitch to get off. Hopefully my 1.5" body lift will come into play and give me a-little more clearance to get my hands back there. I'll see if I can find the other pictures I found of it.

kennerz · May 6, 2019

11 hours ago, Hillwood said:

That cover is part of the intake manifold. It stays on the manifold.

Why are you trying to take it off?

Was going to check the runner gaskets for overall condition (on the older moels as they age would form air leaks after about 3~4 years). Getting ready to inspect the intake valves for carbon buildup and determine it they need cleaning since it's direct injection. Plus I don't like covers and tend to leave them off unless they have a specific purpose.

kennerz · May 6, 2019

23 hours ago, DenaliX14 said:

This may help. It is meant to hold the wire harness as well as keep IAT cooler.

Move to 8:22 IT SHOWs the clips and how too.

Huge help... Thanks

JONBLARC7 · May 14, 2019

Just removed mine last night. What worked for me it to remove all the bolts with the intake still attached to those three tabs. Then i lifted the intake up and pushed it over to the drivers side as far as I could. Then I laid a big moving blanket on the passenger side of the engine and crawled on top. That allowed me to easily reach all three tabs with a screw drive and pry them out.