http://web.camaross.com/forums/annou...?s=&forumid=25

Pulled from another site, in case you haven't read it yet

===============

The following is a memo from GM stating the use of rechargeable air filters may cause transmission shift problems, engine driveability problems & SES Light On problems (throwing codes). It also states these problems will NOT be covered under warranty. Yes, in part of the memo, it states "excessively oiled" filters. But for the most part, it reads any use of this type of filter & these issues won't be covered.

quote:
SERVICE - ALL BUICK, CADILLAC, CHEVROLET, GMC TRUCK, ISUZU, OLDSMOBILE, PONTIAC AND HUMMER DEALERS


Subject: A/T Shift, Engine Driveability Concerns or SES Light On as a Result of the Installation of an Aftermarket Reusable, Excessively Oiled Air Filter -- 2004 and Prior Cars and Lt Duty Trucks and 2003-2004 HUMMER H2
Message #: VSS20040056

Corporate Bulletin Number 04-07-30-013 will be available in SI on March 18, 2004.

Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon (SES)
Light On as a Result of the Installation of an Aftermarket Reusable, Excessively Oiled Air Filter

Models: 2004 and All Prior Cars and Light Duty Trucks
2003-2004 HUMMER H2

DO THIS
First, Inspect the vehicle for a reusable aftermarket excessively oiled air filter

DON'T DO THIS
DO NOT repair under warranty if concerns result from the use of a reusable aftermarket oiled air filter.

The installation of an aftermarket reusable, oiled air filter may result in:

1. Service Engine Soon (SES) Light On

2. Transmission shift concerns, slipping and damaged clutch(es) or band(s)

3. Engine driveability concerns, poor acceleration from a stop, limited engine RPM range

The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF) sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from the MAF may be low and any or all of the concerns listed above may occur.

When servicing a vehicle with any of these concerns, be sure to check for the presence of an aftermarket reusable, excessively oiled air filter. The MAF, GPS reading should be compared to a like vehicle with a OEM air box and filter under the same driving conditions to verify the concern.

Transmission or engine driveability concerns that are the result of the installation of an aftermarket reusable, excessively oiled air filter are not considered to be warrantable repair items.

 

Easy to fix. If something like that happens, then spray a little brake cleaner on the mass air meter and let it dry. Thanks for the heads up, but I think I'll go ahead and continue running the oiled air filter on my dad's vette.

 

I just had an "oiled" filter put in my truck last week. Now the air filter flows more than the stock air box will allow as evidenced by the filter minder being pulled down.

 

A word of caution on our trucks.
Over oiling an after market, reusable filter on our trucks can lead to turbo damage.
Our turbos pull a lot of air through the filter.
If the filter has been over oiled, the turbo will literally pull the excessive oil off of the filter and that oil will coat the turbo inlet and veins.
The oil coated turbo will then start to gather any dust that gets past the filter.

The end result is a turbo that appears black and is gritty with dirt covered oil.

I have gone back and forth between oil filters, stock and BHAF's. Im currently running an oil based air filter. I just make certain that it is not over oiled.

Rich

 

I wonder if Luke could provide this bulletin to us.