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#2808504 - 11/20/12 12:26 PM K&N destroys another engine
widman Offline


Registered: 05/27/02
Posts: 3212
Loc: Bolivia
People tell me not to worry about it, since it is "only a customer's truck", but it frustrates me to see a perfectly good Ford Raptor destroyed by a K&N filter.

Last week the customer came in for an oil change on the Raptor he had bought. It had water in the oil. No loss of coolant. After flushing and cleaning it up, he went away happy with good oil.

Today, after a a few inches of rain this morning, he came back with water in the oil again. No loss of coolant. My people called me downstairs to investigate. I found this K&N filter adapted to the truck, wet with the water that splashes all over the engine compartment when you go through water. I pulled it off to see all this dirt inside the air intake and the brown, water filled oil.

It bothers me that people get taken in by advertising of filters like this and destroy engines.



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#2808511 - 11/20/12 12:30 PM Re: K&N destroys another engine [Re: widman]
MaximusD Offline


Registered: 08/21/11
Posts: 102
Loc: OH - IO
They do make water resistant covers for a cai. Can't say this is K&N's fault.
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#2808512 - 11/20/12 12:32 PM Re: K&N destroys another engine [Re: widman]
Texan4Life Offline


Registered: 01/28/10
Posts: 2264
Loc: Texas
WOW

thanks for sharing the pics.
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#2808514 - 11/20/12 12:33 PM Re: K&N destroys another engine [Re: widman]
Miller88 Offline


Registered: 04/09/08
Posts: 10639
Loc: Onondaga County
Hope Ford isn't flipping the bill for that ...
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Originally Posted By: 01rangerxl
A Lada with manually adjusted drum brakes sounds like a fantastic car.

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#2808518 - 11/20/12 12:35 PM Re: K&N destroys another engine [Re: widman]
sciphi Offline


Registered: 03/24/07
Posts: 9577
Loc: Upstate NY
After looking at the kit and quickly perusing the Raptor boards, some folks have said that the filter can get wet running through water. Bad kit and moron owner, unite!
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#2808521 - 11/20/12 12:36 PM Re: K&N destroys another engine [Re: MaximusD]
Jarlaxle Offline


Registered: 02/02/12
Posts: 6367
Loc: New England
Originally Posted By: MaximusD
They do make water resistant covers for a cai. Can't say this is K&N's fault.


That! This is purely operator error, no fault of K&N!
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#2808523 - 11/20/12 12:38 PM Re: K&N destroys another engine [Re: widman]
bepperb Offline


Registered: 01/10/08
Posts: 4945
Loc: Milwaukee, WI
Assuming that would not have happened with the OEM, and K&N sold this as a kit for that truck how can you not blame them?

I mean, if they owner modified or diy'd this from parts for another vehicle then I can see how KN isn't responsible. But if they're selling these and this is the improvement over OEM... wow.

And the pic of the dirt in the intake tract... it's not filtering air. And you can blame them for that. I wonder if it's a two for one deal, where the MAF is gummed up with oil and it's not filtering that dirt!


Edited by bepperb (11/20/12 12:41 PM)
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#2808526 - 11/20/12 12:40 PM Re: K&N destroys another engine [Re: widman]
c502cid Offline


Registered: 01/17/03
Posts: 803
Loc: Elizabeth. Colorado
You know guys who play in the mud and water do know that water gets in, even with stock filters. You blaming K&N for this is just pushing an agenda.
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#2808531 - 11/20/12 12:43 PM Re: K&N destroys another engine [Re: c502cid]
bepperb Offline


Registered: 01/10/08
Posts: 4945
Loc: Milwaukee, WI
Perhaps that air filters should actually filter air?

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#2808533 - 11/20/12 12:44 PM Re: K&N destroys another engine [Re: c502cid]
Miller88 Offline


Registered: 04/09/08
Posts: 10639
Loc: Onondaga County
I play in mud and water quite a bit in my Jeep. The intake is right behind the left headlight.

I've dipped into mud and water deep enough that I lost the headlights (they got wet), I have managed to hit water pits at high speed to the point that the air box was COVERED in mud and the inside up to the filter.

My intake tube is clean as a whistle ...
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#2808539 - 11/20/12 12:46 PM Re: K&N destroys another engine [Re: widman]
2oldtommy Offline


Registered: 10/29/06
Posts: 860
Loc: Ohio
Looks like the radiator resevoir bottle is empty also. This truck leads a tough life IMO. --Oldtommy

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#2808540 - 11/20/12 12:48 PM Re: K&N destroys another engine [Re: widman]
bigjl Online   content


Registered: 09/06/12
Posts: 1760
Loc: London, England
K&N bashing of the highest order.

A bit like blaming the brakes when you rear end someone. It hadn't actually used the brakes.

This is just the owner being dopy.

And just so you are aware it is possible for a car with a standard intake and air filter to suck up water causing an hydraulic lock of the engine.

One thing, how did the water get from the air intake to the oil without seizing the engine?

I suspect the owner had been driving through water that his vehicle was not capable of and maybe he water got in through the crank case ventilation system.
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#2808545 - 11/20/12 12:55 PM Re: K&N destroys another engine [Re: bepperb]
bigjl Online   content


Registered: 09/06/12
Posts: 1760
Loc: London, England
Originally Posted By: bepperb
Assuming that would not have happened with the OEM, and K&N sold this as a kit for that truck how can you not blame them?

I mean, if they owner modified or diy'd this from parts for another vehicle then I can see how KN isn't responsible. But if they're selling these and this is the improvement over OEM... wow.

And the pic of the dirt in the intake tract... it's not filtering air. And you can blame them for that. I wonder if it's a two for one deal, where the MAF is gummed up with oil and it's not filtering that dirt!


You did see the bit were the OP mentioned that the kit was adapted to fit the raptor.

And anyway only an idiot would fit that kind of filter for off roading. He needs a properly sealed snorkel.

The under bonnet pictures clearly show that the vehicle has been driven through some deep water.

Sometimes the anti K&N posters need to take a deep breath.

This Raptor was ruined by the owner. He seems to think his Raptor is a Defender.
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#2808547 - 11/20/12 12:58 PM Re: K&N destroys another engine [Re: bepperb]
bigjl Online   content


Registered: 09/06/12
Posts: 1760
Loc: London, England
Originally Posted By: bepperb
Perhaps that air filters should actually filter air?



And you KNOW that this dirt didn't get past a bodged on Cold Air Intake instead of through the filter media.

The filter doesn't look like a K&N though. It looks like one of those cheap Chinese knock offs.

A K&N sticker doesn't mean it has one fitted.

And what is the chance the probably young owner is telling the truth on what happened, especially if he was doing something stupid.


Edited by bigjl (11/20/12 01:00 PM)
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#2808548 - 11/20/12 12:59 PM Re: K&N destroys another engine [Re: widman]
AVB Offline


Registered: 05/20/12
Posts: 789
Loc: Georgia
Its intalled wrong, he didn't make the hood cut out and turn the snorkel up for off roading. He also needed a prefilter for the dusty conditions.

K&Ns are not recommended for dusty conditions.

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