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Info - 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 #04-07-30-013A - (Jan 25, 2005)

2005 and Prior GM Cars and Light Duty Trucks

2005 and Prior Saturn Models

2003-2005 HUMMER H2

This bulletin is being revised to add additional model years and to clarify warranty coverage. Please discard Corporate Bulletin Number 04-07-30-013 (Section 07 -- Transmission/Transaxle).

DO THIS:

First, Inspect the vehicle for a reusable aftermarket excessively over- oiled air filter.

DON'T DO THIS:

DO NOT repair MAF sensors under warranty if concerns result from the use of an excessively/over-oiled aftermarket, reusable air filter.

The use of an excessively/over-oiled aftermarket, reusable air filter may result in:

• Service Engine Soon (SES) Light On
• Transmission shift concerns, slipping and damaged clutch(es) or band(s)
• 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/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 aftermarket reusable air filter DOES NOT void the vehicle's warranty.

If an aftermarket reusable air filter 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 driveability concerns (related to the MAF sensor being contaminated with oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not considered to be warrantable repair items.
 

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03 Redline CTS Lux Pkg
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so the volant CAI would cause this problem? Can you buy a new air filter for the Volant that isn't "excessivley/over-oiled"? You are making me regret my purchase already and I haven't even gotten it yet
 

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2003 1SC Diamond White CTS
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No worries pottsy. The bulletin is for people who have cleaned their filter and put too much oil on it. All reusable filters have to be cleaned and oiled about every 50 - 100k miles. If you put too much oil on it, it could leak past the filter and onto the mass air sensor causing it to fail. In 50k miles when you go to clean it, just make sure you don't over-oil it.
 

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Discussion Starter #5
pmpott said:
so the volant CAI would cause this problem? Can you buy a new air filter for the Volant that isn't "excessivley/over-oiled"? You are making me regret my purchase already and I haven't even gotten it yet
All aftermarket oiled filter manufacturers have this issue with people buying them and over oiling the filter. You will note that the bulletin relates to owners replacing the stock filter with a reusable oiled filter, not the complete air filter assembly like the CAI Volant and K&N. The same would hold true if you over oiled the filter in these as well. GM will not warrant the Volant or K&N CAI units themselves nor will they warrant any issue caused by these units.
 

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Discussion Starter #6
The ultimate aftermarket CAI unit design would be one you could quickly switch out with the factory unit.
 
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