http://ww2.justanswer.com/uploads/he...07-30-013B.pdf
http://troubleshootmyvehicle.com/gm/...e-maf-sensor-1
#04-07-30-013B: Info - Automatic Transmission
Shift, Engine Driveability Co
ncerns or Service Engine
Soon (SES) Light On as a Result of the Use of an
Excessively/Over-Oiled Aftermarket, Reusable Air
Filter - (Feb 1, 2007)
This bulletin is being revi
sed to add models and mode
l years. Please discard
Corporate Bulletin Number 04-07-30-013A (S
ection 07 -- Transmission/Transaxle).
The use of an excessively/ove
r-oiled aftermarket,
reusable air filter may result in:
The oil that is used on these air filter elem
ents may be transferred onto the Mass Air Flow
(MAF) sensor causing contamination of the sens
or. As a result, the Grams per Second (GPS)
signal from the MAF may be low and any or al
l of the concerns listed above may occur.
When servicing a vehicle with any of these concer
ns, be sure to check fo
r the presence of an
aftermarket reusable, excessively
/over- oiled air filter. The
MAF, GPS reading should be
compared to a like vehicle with an OEM air box
and filter under the same driving conditions to
verify the concern.
The use of an aftermar
ket reusable air filter DOES NO
T void the vehicle's warranty.
If an aftermarket reusable air f
ilter is used, technicians should inspect the MAF sensor element
and the air induction hose for contamination
of oil prior to making warranty repairs.
Transmission or engine driveabi
lity concerns (related to the MAF sensor being contaminated
Subject: Automatic Transmission
Shift, Engine Driveability
Concerns or Service Engine
Soon (SES) Light On as a
Result of the Use of an
Excessively/Over-Oiled
Aftermarket, Reusable Air Filter
Models: 2007 and Pr
ior GM Cars and Light Duty Trucks
2007 and Prior
Saturn Models
2003-2007 HUMMER H2
2006-2007 HUMMER H3
2005-2007 Saab 9-7X
DO THIS
DON'T DO THIS
First, Inspect the vehicle for a
reusable aftermarket
excessively/over- oiled air filter
DO NOT repair MAF sensors under warranty if
concerns result from the use of an
excessively/over-oiled af
termarket, reusable air
filter.
• Service Engine Soon (SES) light on
• Transmission shift concerns, slipping and damaged clutch(es) or band(s)
• Engine driveability concerns, poor acce
leration from a stop, limited engine RPM range
with oil) that are the result
of the use of an afte
rmarket reusable, exce
ssively/over-oiled air
filter are not considered to be warrantable repair items.
GM bulletins are intended for use by professional technicians,
NOT a "do-it-yourselfer". They are written to inform these tech
nicians of conditions that
may occur on some vehicles, or to provide in
formation that could assist in the proper
service of a vehicle. Properly trained t
echnicians have the
equipment, tools, safety instructions, and know-how to do a job
properly and safely. If a condition is described, DO NOT assum
e that the bulletin
applies to your vehicle, or that
your vehicle will have that condition. See yo
ur GM dealer for information on whether your veh
icle may benefit from the
information.
