Mike "Wuzzy121". Rest in peace, brother

Go Back   Tacoma World Forums > Tacoma Garage > Performance and Tuning

Notices

kn filter too restrictive? wtf?

Reply
 
Thread Tools Search this Thread
Old 01-30-2008, 08:40 AM   #1
JDB [OP] JDB is offline
Junior Member
JDB is on a distinguished road
Joined: Jan 2008, #4169
Posts: 21
JDB's Tacoma Gallery
kn filter too restrictive? wtf?

I was at the dealership getting my 4.0 tacoma looked at for my horrible gas milage yesterday. The tech took one look at my drop in KN filter and said that was my problem and to throw it away. He said that when they get any dirt in them at all, they are too restrictive. He said to go back to a stock paper filter and that will fix my problem? I have yet to buy one, as he knows more that I, but has any ones else heard this? I don't want to say he is full of it, but that does not make sense to me.
They also recommended that I try cleaning my MAFS, can you do this, or is is it sealed? They wanted 170.00 do clean it. My check engine light is not on, but they said it has some tolorence before it will come on.
  Reply With Quote
Old 01-30-2008, 08:55 AM   #2
Senior Member
Coheednme13 will become famous soon enough
Name: MattDaddy
Joined: Jan 2008, #4172
Location: Elgin, SC
Posts: 244
Coheednme13's Tacoma Gallery
You can clean the MAF. I've never done it on a tacoma but many in the forum have and I'm sure they will post soon on how to do this. Also, I can almost guarantee that you could buy a new MAF for 170 so don't let them do it.
  Reply With Quote
Old 01-30-2008, 09:42 AM   #3
Mod Master
pb2themax is a jewel in the roughpb2themax is a jewel in the roughpb2themax is a jewel in the rough
 
pb2themax's Avatar
Joined: Dec 2006, #500
Posts: 386
pb2themax's Tacoma Gallery
Your MAF is probably clean as a whistle. My 4.0 has 32k miles and the MAF is still clean. But if you want to clean it just take it out and gently spray it with some air intake cleaner, then let it dry. The MAF sensor is on the intake tube before the throttle body. I think 4 screws hold it in.
  Reply With Quote
Old 01-30-2008, 09:57 AM   #4
Old & Forgetful
Janster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shed
 
Janster's Avatar
Name: Jandy
Joined: Mar 2007, #1138
Location: Lancaster, PA
Age: 46
Gender: Female
Posts: 12,729
Janster's Tacoma Gallery
He's just another K&N hater....

You should keep your K&N clean and clean it regularly. I used to clean mine every 6 months regardless.

Sure - the K&N can get dirty and probably more restrictive than when its cleaned. But I can't imagine it's any more restrictive than a dirty paper filter!
  Reply With Quote
Old 01-30-2008, 10:54 AM   #5
"Living life in the FAST lane..."
05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed
 
05PreRunner's Avatar
Joined: Sep 2007, #2675
Location: <-(714)-> SO-CAL
Age: 24
Gender: Male
Posts: 6,685
05PreRunner's Tacoma Gallery
Send a message via AIM to 05PreRunner
Here's an interesting video about different types of filters:
http://www.youtube.com/watch?v=ThmW2SW1I-k
  Reply With Quote
Old 01-30-2008, 11:22 AM   #6
JDB [OP] JDB is offline
Junior Member
JDB is on a distinguished road
Joined: Jan 2008, #4169
Posts: 21
JDB's Tacoma Gallery
So any one tried pone of these true flows? I could not find just a drop in filter on their web site for the 2nd gens.
  Reply With Quote
Old 01-30-2008, 11:26 AM   #7
"Living life in the FAST lane..."
05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed05PreRunner is one of the sharper tools in the shed
 
05PreRunner's Avatar
Joined: Sep 2007, #2675
Location: <-(714)-> SO-CAL
Age: 24
Gender: Male
Posts: 6,685
05PreRunner's Tacoma Gallery
Send a message via AIM to 05PreRunner
Quote:
Originally Posted by JDB View Post
So any one tried pone of these true flows? I could not find just a drop in filter on their web site for the 2nd gens.
I just bought a True Flow Intake System, They were on sale.... I should get it within 2-5 days....
  Reply With Quote
Old 01-30-2008, 11:33 AM   #8
My hair is all natural
lsocoee is one of the sharper tools in the shedlsocoee is one of the sharper tools in the shedlsocoee is one of the sharper tools in the shedlsocoee is one of the sharper tools in the shedlsocoee is one of the sharper tools in the shedlsocoee is one of the sharper tools in the shedlsocoee is one of the sharper tools in the shedlsocoee is one of the sharper tools in the shedlsocoee is one of the sharper tools in the shedlsocoee is one of the sharper tools in the shedlsocoee is one of the sharper tools in the shed
 
lsocoee's Avatar
Name: Hotdog
Joined: Feb 2007, #872
Posts: 10,448
lsocoee's Tacoma Gallery
Your service guy is probably going on the knowledge that K&N filters are oiled. If they are over-oiled, your MAFS can get fouled up.

I run the dry filter that came with the URD intake. I believe it is made by Amsoil. I have no complaints. I'll probably clean it in a few months.
  Reply With Quote
Old 01-30-2008, 11:50 AM   #9
Member
MaGuyver is on a distinguished road
 
MaGuyver's Avatar
Joined: Jan 2008, #4408
Location: Charleston, SC
Posts: 72
MaGuyver's Tacoma Gallery
I just bought a True Flow XDI and should be here today
  Reply With Quote
Old 01-30-2008, 06:44 PM   #10
Kylie's dad
WilsonTheDog is one of the sharper tools in the shedWilsonTheDog is one of the sharper tools in the shedWilsonTheDog is one of the sharper tools in the shedWilsonTheDog is one of the sharper tools in the shedWilsonTheDog is one of the sharper tools in the shedWilsonTheDog is one of the sharper tools in the shedWilsonTheDog is one of the sharper tools in the shedWilsonTheDog is one of the sharper tools in the shedWilsonTheDog is one of the sharper tools in the shedWilsonTheDog is one of the sharper tools in the shedWilsonTheDog is one of the sharper tools in the shed
 
WilsonTheDog's Avatar
Name: Eric
Joined: Nov 2007, #3496
Location: Myrtle Beach SC
Gender: Male
Posts: 4,835
WilsonTheDog's Tacoma Gallery
Quote:
Originally Posted by Janster View Post
He's just another K&N hater....
So it couldn't be that the trained tech has a lot of experience, both with K&N's and in general, and he's simply giving this guy the benefit of said experience? Maybe he's done oil studies, like I have, that show higher amounts of silicates when using a K&N vs an OEM filter (all conditions otherwise equal).

I personally wouldn't use the K&N. I did for years but after what I saw in my oil studies and the couple of failed MAFS I've had (different vehicles), that's just my personal choice.
  Reply With Quote
Old 01-31-2008, 03:02 AM   #11
Old & Forgetful
Janster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shed
 
Janster's Avatar
Name: Jandy
Joined: Mar 2007, #1138
Location: Lancaster, PA
Age: 46
Gender: Female
Posts: 12,729
Janster's Tacoma Gallery
Quote:
Originally Posted by WilsonTheDog View Post
So it couldn't be that the trained tech has a lot of experience, both with K&N's and in general, and he's simply giving this guy the benefit of said experience? Maybe he's done oil studies, like I have, that show higher amounts of silicates when using a K&N vs an OEM filter (all conditions otherwise equal).

I personally wouldn't use the K&N. I did for years but after what I saw in my oil studies and the couple of failed MAFS I've had (different vehicles), that's just my personal choice.
There's tons of arguements FOR and AGAINEST K&N filters. If K&N filters are as bad as a lot of folks think they are - the company wouldn't be in business. But obviously, they continue to make them and sell them.

I highly doubt a Toyota Technician is an expert on K&N filters. Anyone can perform studies and anyone can read about studies performed about them - that doesn't make you an expert. The only people qualified to be experts about them - are the engineers who've designed them and tested them (and continue to test them). *On a side note - some Toyota Techs can't even do their own job let alone be an expert at anything*

In this situation - The Toyota Tech is being lazy. Immediately blaming the problem on the K&N and rendering his job *done* without checking into other things. Not to mention - in the process, pissing off the customer (JDB).

Like everything else in the world - (as you mentioned above), it's a personal choice. I've had K&N for years on various vehicles and I've never had any problems or complaints about them. I'd buy them again. So who's right?
Nobody is right or wrong. It's personal preference.
  Reply With Quote
Old 01-31-2008, 04:28 AM   #12
Senior Member
4x4Taco will become famous soon enough4x4Taco will become famous soon enough
 
4x4Taco's Avatar
Joined: Feb 2007, #976
Location: Ontario
Gender: Male
Posts: 153
4x4Taco's Tacoma Gallery
Well my 0.02 cents....I have run K&N air filters for many years of drag racing and on the street..had my car dynoed many times...and the K&N cone type always flow the best. Never had problems with dirt getting into motor and I take off the intake a few times a year and its spotless inside. K&N also dynos their applications so you know how much HP yor going to get and they can't lie about it becasue every performance mag out there has tried them and reported the numbers on various applications.

I have never had a problem with the mass air; maybe if someone over oiled the filter and did not let it dry they may have an issue.

As for true flow; while I have never used one...my thoughts:
- I watched the video and they used a K&N without oil which nobody would ever use? Why? I find this kind of a dishonest comparison.

- Also my main issue with the design is the filter has two purposes...filter the air...most will do this great even the cheap paper. But function two is to allow as much air into the engine as possible....I assume this is why 99% of everyone that buys these filters/intake tubes wants one for the possible promise of a little more HP. Well True Flow has no numbers on their applications and admit that the K&N material flows better.

Personally I like K&N and have put 100s of thousands of miles on them with many applications and only ever had good results. Just clean it when you change you oil; oil it and let it dry.
  Reply With Quote
Old 01-31-2008, 05:48 AM   #13
Member
deer_pop is on a distinguished road
 
deer_pop's Avatar
Joined: Nov 2007, #3644
Location: Ontario
Posts: 90
deer_pop's Tacoma Gallery
Sorry for going off topic.

05PreRunner, thanks for the video. I watched the whole thing. I am going to check out the website and get more information.

It would be great to hear what type of results people have been getting with true flow on a 4.0 tacoma.
  Reply With Quote
Old 01-31-2008, 07:21 AM   #14
Devout Atheist
piercedtiger is one of the sharper tools in the shedpiercedtiger is one of the sharper tools in the shedpiercedtiger is one of the sharper tools in the shedpiercedtiger is one of the sharper tools in the shedpiercedtiger is one of the sharper tools in the shedpiercedtiger is one of the sharper tools in the shedpiercedtiger is one of the sharper tools in the shedpiercedtiger is one of the sharper tools in the shedpiercedtiger is one of the sharper tools in the shedpiercedtiger is one of the sharper tools in the shedpiercedtiger is one of the sharper tools in the shed
 
piercedtiger's Avatar
Name: Jon
Joined: Oct 2007, #3284
Location: B.F.E., NY
Age: 34
Gender: Male
Posts: 6,506
piercedtiger's Tacoma Gallery
Send a message via AIM to piercedtiger
Quote:
Originally Posted by deer_pop View Post
Sorry for going off topic.

05PreRunner, thanks for the video. I watched the whole thing. I am going to check out the website and get more information.

It would be great to hear what type of results people have been getting with true flow on a 4.0 tacoma.
+1 It was some good info there. I can't say one way or another if the K&N was oiled or not, but it was interesting to see how much dirt gets through. With all the dirt roads and road salt in my area it got me thinking about getting one! And that doesn't even count the off roading I do on dusty trails. Just normal, everyday driving.
  Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: 2005+ OEM Air Filter Assembly w/ secondary filter removed Jay238 2nd Gen Tacoma Marketplace 8 02-16-2012 09:46 PM
Mobil 1 and Filter $27.99/ Royal Purple and Filter $40 ROCKSLINGER Deals & Coupons 5 04-19-2011 10:34 AM
CAI or Drop in KN? blacktxsr5 Performance and Tuning 1 03-18-2009 09:00 PM
free kn intake kit TacticalBacon13 Deals & Coupons 5 02-26-2009 08:51 AM
Problems with KN flipkid420 Performance and Tuning 1 09-07-2007 03:51 AM


Copyright © 2014 Tacoma Forum. Tacoma World is not owned by, or affiliated with Toyota Motor Corporation.