Jump to content

How to remove L86/6.2 engine cover

kennerz

By kennerz
in Engines & Drivetrain

Recommended Posts

kennerz Enthusiast

kennerz

Posted
Posted

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 Senior Enthusiast

Nasty

Posted
Posted
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?

s-l300.jpg

kennerz Enthusiast

kennerz

Posted
  • Author
Posted

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 Senior Enthusiast

Nasty

Posted
Posted
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 Enthusiast

DenaliX14

Posted
Posted
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 Senior Enthusiast

Nasty

Posted
Posted

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

Hillwood Enthusiast

Hillwood

Posted
Posted
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 Enthusiast

JONBLARC7

Posted
Posted

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 Enthusiast

kennerz

Posted
  • Author
Posted
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 Enthusiast

kennerz

Posted
  • Author
Posted
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 Enthusiast

JONBLARC7

Posted
Posted

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.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • Grumpy Bear
      AFM Experience

      By Grumpy Bear · Posted

      Question @diyer2 on this line if you please. Are you saying the shudder is the system turning on and off at the frequency of the shudder? Guess I'm asking if you are saying you have seen it do this with the bi-direction scan tool in graph mode? If so have you been able to discern the 'trigger'. Something is telling to cycle rapidly.    My truck just started doing this recently. 197K on the clock. My response has been M5 anything under 55 mph. I treat it like a lugging stick shift. Gear down and let it spin a bit. Engauge M5, then tow mode and then M6 lets the trans stay in 5th but the AFM is active. Smooth like Skippy.    My thought was that as a machine ages the friction gets lower and as the system is load based, the lower friction would allow it to turn on at ever lower rpm until it reaches the lugging point. And yes I am ignorant of any minimum rpm requirement for the system. If you know that would be useful information.    As you know I run a Scan-Gauge II which allows me to watch the On/Off of the signal to the VLOM. While in the shudder mode I'm not seeing is cycle at that frequency or at all for that matter outside the triggers @newdude posted a few years back. Now is it possible that the refresh rate isn't fast enough to catch it? Maybe. It is why I asked my first question about graphing and trigging parameter.     As we have observed from members here the failure point is all over the map miles wise as you note yourself in your opening post. That by itself begs a few questions like fellows that comment on these lifters failing even after the system has been disabled. Long after. 😬   https://www.enginelabs.com/news/tech-tips-replacing-ls-active-fuel-management-lifters-with-melling/   The Gen5 lifters operate the same as the LS versions. In fact they are the same lifter.    https://www.enginelabs.com/tech-stories/sorting-out-gen-v-lt-lifter-failure-with-a-simple-valvetrain-fix/        
    • SwitchBladeSierra
      14-18 Sierra 1500 Heated Steering Wheel Help

      By SwitchBladeSierra · Posted

      UPDATE 2: Steering wheel control backlights and control of the cluster can supposedly be achieved by adding a wire to pin 20 of the cluster and tapping it to pin 2 of the main clock spring harness. I'm going to give it a shot - will update  
    • newdude
      Seems to be Missing a lot of Updates

      By newdude · Posted

      GM Global A pickups 2019-2022 can do OTA programming for the radio.  GM VIP (GM Global B) can do OTAs for almost every module on board.  So a 2022.5 and newer pickup can do OTAs for recalls like the 2.7 fuel flow recall.  EVs get OTAs that improve one pedal driving, radio issues, HVAC issues, updated battery management software, etc.     So age of the vehicle/what GM electrical platform its on will alter what amount of updates can be pushed on OTAs.  
    • Blade8971
      Upgrade to a 2026 AT4 with the 3.0L Duramax

      By Blade8971 · Posted

      Thank You.   So far my new ride is making me look like a genius for going with the 3.0L, as my first fuel refill occurred over three weeks from when I took delivery.  This engine combination is very amazing.  So far no issues and had not done a regen yet.
    • Chuck FB
      Correct way to service 2024 l8t allison trans?

      By Chuck FB · Posted

      I am curious as to how much fluid you put back in the transmission ( assuming you had replaced the filter to compare to my findings ) and then went through the process of warming up the trans before pulling the check plug to drain out the excess and if you measured how much came back out.    I just found it surprising that some claimed a certain amount less fluid being put in and then draining some back out. The attitude of the truck as per if the surface is level and how the trucks stance is would make quite a difference since the check plug is right at the front of the transmission. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...