K&N filter question...Possible disturbing news!!!!

Morgstang · 09-08-2003, 08:00 PM

My car was idling erractic and took it to the Ford dealer today. They found that the Valve assembly on the throttle body wasnt functioning properly due to excess dirt buildup. When i asked the mechanic how it could have got that way he told me that it was probably from the K&N filter i have on my WMS Racing cold air kit. He said that they arent very good at filtering the small particles as well as normal filters. Also he said that the mass air sensor could be the next victim because of the filter because of the oil in the K&N getting trapped on the MAF sensors. This may not be worded exactly as he spoke it but i tried to get close. Question is if this is true do i go back to the stock airbox and filter OR is there another performance filter that filters better than the K&N. My car has 28K miles on it and is never drivin in dusty conditions. Thanks for your answers.

Hammer · 09-08-2003, 09:12 PM

I have heard of the filter oil in K&Ns causing problems with MAFs before, but it was almost always because of the user over-oiling after "recharging" the filter.
As far as the contaminants are concerned, If you have one of the standard cold air kits that extend into the wheel well, you are definately exposed to more dirt, rain and god knows what else. Although the filters are designed for such things, I would try putting a K&N in the stock air box without the air silencer and see if that helps your dirt problems.

As a side note, I had my K&N filter on my 98 GT for over 60k miles and never had an issue....

95mustanggt · 09-09-2003, 07:37 AM

Quote:

Originally posted by Hammer
...As a side note, I had my K&N filter on my 98 GT for over 60k miles and never had an issue....

Yup, I've got 72,000 miles on my 95, and no problems (related to K&N

). If you are getting that much dirt, I'd also make sure that the system is sealed properly, make sure you've got enough oil to trap small particles (but not too much to damage the MAF!!).

K&N filters have been around for years, if there was a problem, IMO it would already have showed it self. But some of these cold air kits could be a different story.

Red Mustang Gt 46 · 09-09-2003, 09:28 AM

If they were talking about the IAC valve which is part of the plenum / throttle body assembly...that's a common problem. With a K&N your more likely to contaminate the Mass air sensors, easily fixed by a blast of brake cleaner or contact cleaner.

Nothing to get excited about...

96_4.6 · 09-09-2003, 02:57 PM

WHats IMO mean, i know lol and lmfao and all those but could never figure out IMO

VeNuM · 09-09-2003, 03:28 PM

In My Opinion

09-08-2003, 08:00 PM	#1
Morgstang Registered Member Join Date: May 2003 Location: Texas Posts: 12	K&N filter question...Possible disturbing news!!!! My car was idling erractic and took it to the Ford dealer today. They found that the Valve assembly on the throttle body wasnt functioning properly due to excess dirt buildup. When i asked the mechanic how it could have got that way he told me that it was probably from the K&N filter i have on my WMS Racing cold air kit. He said that they arent very good at filtering the small particles as well as normal filters. Also he said that the mass air sensor could be the next victim because of the filter because of the oil in the K&N getting trapped on the MAF sensors. This may not be worded exactly as he spoke it but i tried to get close. Question is if this is true do i go back to the stock airbox and filter OR is there another performance filter that filters better than the K&N. My car has 28K miles on it and is never drivin in dusty conditions. Thanks for your answers.

09-08-2003, 09:12 PM	#2
Hammer AKA "Dr. Evil" Join Date: Feb 1999 Location: South Fork Ranch Posts: 1,721	I have heard of the filter oil in K&Ns causing problems with MAFs before, but it was almost always because of the user over-oiling after "recharging" the filter. As far as the contaminants are concerned, If you have one of the standard cold air kits that extend into the wheel well, you are definately exposed to more dirt, rain and god knows what else. Although the filters are designed for such things, I would try putting a K&N in the stock air box without the air silencer and see if that helps your dirt problems. As a side note, I had my K&N filter on my 98 GT for over 60k miles and never had an issue.... __________________ Uncle Sam "What the hell is up with all the gauges? Calling Captain Kirk, your ride awaits... Phasers on stun...."

09-09-2003, 09:28 AM	#4
Red Mustang Gt 46 13.3 @ 103 Join Date: May 2001 Location: Maryland Posts: 253	If they were talking about the IAC valve which is part of the plenum / throttle body assembly...that's a common problem. With a K&N your more likely to contaminate the Mass air sensors, easily fixed by a blast of brake cleaner or contact cleaner. Nothing to get excited about... __________________ Equipment by: Steeda C&L COMP CAMS FRPP MSD Bassani Magnaflow MAC Last edited by Red Mustang Gt 46; 09-09-2003 at 10:03 AM..

09-09-2003, 02:57 PM	#5
96_4.6 Registered Member Join Date: Jul 2002 Location: Michigan Posts: 417	WHats IMO mean, i know lol and lmfao and all those but could never figure out IMO __________________ 1996 Mustang GT, AODE -Trickflow Upper Plenum -BBK 70mm Throttlebody -02 PI Lower Intake -March Pulleys -BBK H-Pipe -2 Chamber Flowmaster mufflers -3000 RPM Stall -JLT CAI with special K&N -MSD Supercondutor wires -180 stat -FRPP 4:10's *FOR SALE C&L TRUE FLOW INLET PIPE WITH K&N* My Stang

09-09-2003, 03:28 PM	#6
VeNuM Registered Member Join Date: Apr 2002 Location: Downers Grove, IL Posts: 464	In My Opinion __________________ 1989 Black Mustang GT Hatchback, Underdrive Pulles, Electric Fan, Cold Air Intake, Headers, Offroad H-Pipe, Magnaflow catback, Steeda Tri-Ax, Fluidyne Aluminum Radiator, Timing at 14*, 3.73's Coming not so soon: 408w Ricer Hater's Club Member #59

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