Air Filter - SES Lamp ON/Multiple Driveability Concerns
Bulletin No.: 04-07-30-013
Date: March 05, 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
2004 and Prior Cars and Light Duty Trucks
2003-2004 HUMMER H2
PICTURE (nonstatic url):
DO THIS: --- First, inspect the vehicle for a reuseable aftermarket excessively oiled air filter
DO NOT DO THIS: --- DO NOT repair under warranty if concerns result from the use of a reuseable aftermarket oiled air filter
The installation of an aftermarket reusable, oiled air filter may result in:
^ Service Engine Soon (SES) Light On
^ Transmission shift concerns, slipping and damaged clutch(es) or band(*)
^ 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.
I was just reading through some of the Technical Service Bulletins through my AlldataDIY.com
account for my Bonneville, and thought this one was pretty interesting considering I have some of those driveability concerns and also have a Drop-in K&N. Anyone else notice anything like this with their K&Ns?
Is there a way that the MAF can be cleaned? It it very easy to remove, but I just don't know if it is easily cleaned...