Howdy,
just wanted to share my experience for this week with you. I have an 04 with 5.3 engine. I have a W4Me tune with the crank relearn , K&N intake, and dualed out. My check engine light came on. I took it to the dealer and the service man came out and told me that my catalytic converters had come apart and were plugged. They gave me a loaner car to drive til they could fix my truck. I called the next day and he said that the check engine light went off with the new converters but it was running rough and they were still working on it. The next day I called and was told that it was fixed. I went to pick it up and was told that my K&N had oiled the MAS and fouled it out which caused a rich mixture which fouled the plugs and converters. My K&N has an outer wear on it and hasnt been oiled in a year. I told him that he could rub my MAS with a white glove and he wouldnt see anyt oil. He agreed but he had a service bulletin from GM which said to not honor warranty work if the engine had a K&N filter. They warranted the work but I had to leave the dealership with the filter in my hand and none on the truck. I stopped a block away and put it back on. I then ordered an AEM oilless filter. I will be ready for that bogus service bulletin next time. Have a goodun!!!!

 

just another reason why i went with the AEM dryflow intake

 

I've never had a problem with any K&N I've used on any of my vehicles to this day.

Jim

 

Subject: 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 - (01/25/2005)



Models: 2005 and Prior GM Cars and Light Duty Trucks

2005 and Prior Saturn Models

2003-2005 HUMMER H2




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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).


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DO THIS
DON'T DO THIS

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



WOW, i didnt even know about this bulletin... I understand your point ,but you need to look at it from a gm side too... it is not actually a manufacturing defect......

 

man, i'm glad you posted that. ever since I put my intake on, I get these random rich codes. left and right bank. when I took my k&n out of the box it had a bold sticker that said, NOT FOR USE ON EMISSION CONTROLLED VEHICLES. i disregarded the label because I bought the kit from a reputable performance shop. The first time i got the code I took it back to street and performance and they said it might be my o2's. I thought that was suspicious though that both banks were acting up at the same time! now my only question is, can I clean my MAS?

 

Funny thing is that my dealer has K&N filters on display/for sale in their parts department. I guess they are hoping for someone to "over oil" the filter $$.

 

You can clean your MAF with electrical contact cleaner that has no lubricant in it. Take the MAF out and flood it with cleaner and let it air dry. Careful not to damage the fine wires in the MAF and use a cleaner that is safe for plastic.

 

So not carb cleaner spray? (Hogwash brand)

 

(Hogwash Brand) LOL Thought that was a funny name for a product.

If it is safe to use on plastic, has no lubricant in it and does not leave a residue then I think it would work. I have used the electric contact cleaner and I know it will work so I use that.

 

FYI.. they make a MAF cleaner.. i say some at a local parts house..
but i used electronic contact cleaner