Hi fellow C6 owners. I need some help with a matter that seems simple, but I found it difficult to do. I wanted to check and possibly replace the air filter in my '09 Z51. I have the LS3 engine. In the manual it says to remove the intake off the mounting studs and move it back to access the filter element.

Sounds simple enough but first of all it's not obvious how to loosen or unfasten that those mounting studs (I finally just popped the things by pulling the plastic assembly straight up). Then I find that I cannot really move the intake assembly enough to get to the air filter :huh:. My '06 C6 was pretty easy to check and replace the air filter, but it had the LS2 engine. This one is quite different and I don't want to force or break anything so please feel free to give me your expert advise or input.

Thanks in advance :thumbsup:

 

Haven't had mine off in a while but if I remember correctly.
Undo hose clamp at rear and slip apart at that point. also undo the electrical connector on the side. Now pull up on the mounting studs and the whole thing comes out of the car.

 

Thanks, it makes sense but since I did not read in the owners manual anything more than popping off the the housing I was unsure about how to proceed...

 

If you need it there is a little more in here:

http://forums.corvetteforum.com/c6-c...on-an-ls3.html

 

this is from "joec5"

JoesC5
CF Senior Member

My Corvette Photos
Member Since: Sep 1999
Location: Springfield MO

Default
work from the drivers side of the car.
Pull the vacuum hose from the bellows.
Loosen the rear hose clamp .
Pull breather housing upwards while pulling the bellows free from the throttle body.
Place a rag on top of the radiator.
When the housing is clear, rotate it 180 degrees and lay it down on the rag.
To unhook the MAF electrical clip, take a small screwdriver and press down on the center of the gray clip. Pull the gray clip outward. When the clip is removed, you will see that it is a three fingered prong. Most Important....DO NOT DROP THE LITTLE GRAY CLIP.
Then use the screwdriver to press on the center prong on the black electrical clip to release it while pulling free of the MAF.
Sit down and place the housing between you legs with the filter upwards.
With a torx driver loosen the screws holding the filter element retainer. The screws do not have to be completely removed.
remove the retainer.
pull upward using the molded prongs on each end of the filter element.

To reinstall, work backwards. IMPORTANT....DO NOT DROP THE LITTLE GRAY THREE PRONG CLIP THAT LOCKS THE ELECTRICAL CONNECTOR TO THE MAF.

Really, it's a piece of cake, if you don't drop the little gray three prong clip.

Oh, and use plenty of cuss words when trying to get the soft bellows back on the throttle body.
________________________________________ ________________________
and see "hanny" (Paul) post #8 in this thread re the above for a pic of it.

http://forums.corvetteforum.com/c6-c...with-pics.html

 

To remove the rubber grommets, pry up the center plastic pin on the rubber grommet using a small flat head screw driver or needle nose plier. Once the pins are removed, the intake will lift off. Read above post for the rest of the story!

 

Anyone know what size torq screw is needed to remove air filter from housing??

 

I loosened the large oval clamp and removed the rubber bellows from the filter housing. I then just pulled up the housing and it came off the rubber grommets. No need to remove the electrical connection or the vacuum line. Just carefully turn the housing over and look at the filter.
Mine was pretty much clean. I would say it was improbably quite clean. There was no evidence of dirt or dust visible. Kind of strange actually.. I removed one small insect with iridescent wings that had gotten sucked to the filter but that was all. I did not even remove the filter from the housing.

The strange thing is that it looks like the filter rests almost flush against a plastic surface that only has a couple of small holes where any air might come in from the front of the car. It seems that the filter sucks air from a small area around the lower half of the housing and all the air that goes into the engine comes from the engine bay... Unless there is some sort of seal formed with the hood over the area where the rubber grommets are, there is no cold air intake in this puppy

I can definitely see where a well designed cold air intake could make some substantial power improvements. Perhaps I'm missing something, in that case, please educate me, but it seems that the hot air intake in the stock car leaves a lot to be desired...