Can anyone provide some insight for changing the air filter for the 997.1.

I read that it's more difficult than the 997.2. Any assistance is greatly appreciated.

Thx

NK

 

It's really simple. With a nut driver remove the central Y shaped rubber boot that connects the air filter box to the intake tube.


Disconnect the air intake tube on the left side of the engine compartment from the small clip (on the backside) that keeps i orientated properly.

Pull up and out and remove the Torx screws that keep the filter inside the box. There are probably about 6-8 Torx screws that keep the air box together. Remove the old filter and replace it with the new. Screw the air box back together, and rotate it back into position. Be careful when returning it to it's position--there are two black rubber plugs (sort of) that the filter box rests on. Restore the connection on the left for the polyprop. intake tube and then put back on the Y intake tube (downstream of the filter, but before the intake manifold). Secure that Y shaped rubber tube with all 4 fasteners. Done.

Common mistakes:

(1) Failure to forget to reconnect the small fastener that is inside of the intake tube on the left
(2) Failure to realign everything onto the two rubber 'posts' that keep the filter box in the right position.
(3) Failure to put the rubber boots on correctly, leading to an air gap.

 

i usually drop off rubber boot from throttle body and do not release fasteners on a air filter housing.

for MAF sensor wire it is sometimes easier to pull airbox out a bit and then disconnect MAF wire as its lock is on lower pin and it may feel 'stuck'.

rubber plugs always fall down, be ready to look for them and do not forget to put them first into car, then push airbox.

all is easy, it only feels like it cannot get neither in not out but it moves in just fine. take your time and do not force it.

 

when you get airbox off always inspect insides of a throttle body for any oily signs. it should be no oil there, no black residue that is oily on touch, etc. it is worth to clean throttle body to make sure it is in perfect condition.

 

Don't forget to also reconnect the vacuum line which is located bellow the MAF air sensor connection. The hard plastic line is small and black so it blends into the engine bay if the area is not properly illuminated.

 

Would anyone have an illustration of said procedures? The descriptions are great for a mechanic.....but not useful to one that is not familiar around the engine area . Thanks!

 

Hi Boraive, its really easy . Just do it step by step , I was really scared too at the begining ( I thougt I gonna break something and have to tow the car to the dealer ) as you can see I am no mechanic nor handy with the tools ..good luck

 

This might help:

http://www.renntech.org/forums/topic...leaner-change/

It's not difficult for anyone who has a small amount of mechanical skill. And if you think you don't have any skills, this is a good project to build some. Good luck.

 

Thanks for the pointers guys. Did the air an cabin filters today in about 15 minutes.

However

not sure about this? No sign of any vacuum line on mine (08 C2 cab)

 

I believe there is no vacuum line on non-s models.

 

Yes, thanks, confirmed that elsewhere