I just thought i share this with you all who have an aftermarket intake.

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.

 

Thanks nice.

 

How the hell is transmission slipping and damaged clutch packs affected by an air filter?

 

better keep that stock filter/airbox around just in case

 

I think that's ohrse ****. I guess I see thier point, but the don't touch it attitude would **** me off.

If they would build it worth a damn in the first place instead of pulling timing as low as -10*, they wouldn't have to worrty about that.

 

1. My service engine light did not come on.
2. I did not noticed any transmission slipage.
3. My tires spin and it revs faster.

I'm not worried about damage from dirty air, I have a K&N

 

May affect mass air sensor?

 

maf gets coated in oil, outputs a lower frequency, this altersload tables in the computer, and the line pressure is lower, due to the altered data.

Really nothing new, same as a ported maf

its not a "don't touch" attitude, but does have facts to back it up.

Bottom line, just put a stock one on, when you go in for service always smart to do anyway. (not sure how hard that is on a truck, the f-cars are a whole 3 seconds to change

Ryan.

 

readings from the MAF are used for line pressure/shift points in the auto's

 

Yep. I know a couple of guys who had their warranties voided on their F250 Powerstrokes...all because they were running K&N filters. Of course they were running performance chips too, but they were smart enough to remove them before taking them in. The dealer knew it, just couldn't prove it, so they got very nit-picky and canned their warranty over the filters. That dealership lost two of it's best customers over that bullshit. Now they are driving Dodges.