i installed a cold air intake and it is making some wierd noises at idle. kinda want to die but it just clicks and pops and rpm dance around. its fine when i take off and start driving but come to a stop and there it goes again. i have the factory mass air flow sensor installed but do i need to upgrade that to?
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2002 f-150 4x4, 6" fabtech lift, custom gauges, intake and cherry bomb exhaust, pre runner guard up front!
Well I'm guessing you're using a K&N CAI or something along those lines so you have oiled air filter. I would look at cleaning the MAS as the filter oil could mess it up.
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1999 F-150 XL 5.4, Auto, 4x4, 8ft bed, ~160000 miles Mods K&N high flow filter 2" suspension lift
I have also heard of some CAIs creating a turbulent flow that confuses the MAF, resulting in inconsistent readings. My general take on CAIs is that very few of them are worth the money. In order get your value out of them, they need to have the following characteristics:
1: Must have a full shroud of the filter element and must draw cold air from outside the engine compartment. If it doesn't do this, its not a cold air intake.
2: If they use an oiled element, the potential loss of fuel economy and performance plus the long term potential damage far outweighs the benefits.
3: Must use a quality PLASTIC intake tube. Metal tubes conduct heat, and that reduces the air density, partially negating the benefits.
4: Plan on using a tuner to recalibrate the system to get the most from it.
5: Plan on also redoing the exhaust or at least replacing the muffler.
The stock intake is really ok, the biggest thing you gain from an aftermarket CAI is sound. The stock setup is quite free flowing, and was already a CAI.
well its not a k&n or any big brand but i has an stainless steel tube and an oil free filter but its inside of a box. i also installed a throttle body spacer.
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2002 f-150 4x4, 6" fabtech lift, custom gauges, intake and cherry bomb exhaust, pre runner guard up front!
Dont worry about the metal tube for one. The plastic tube argument holds no water at all. For the tube to impart heat to the incoming air, the air would have to be sitting in the tube long enough for that to happen. Air is moving through the intake tract at a high rate of speed. Plastic tubes in a static enviroment like the engine compartment are going to be the exact same temperature as a metal tube in the same enviroment.
I would agree that a non oiled filter in an enclosure that draws from outside the engine compartment is best. Of course, that is exactly what the stock system is.
The throttle body spacer was a waste of money, I would remove it. I think maybe a PCM reset is worth a try though it should adjust itself within a few start cylces anyway.
I would also agree that there is absolutely no benefit to these intakes other than to make more intake noise. Some like that, some don't.
__________________ 1999 Expedition XLT, big and green, 5.4, 4x4, 285/70-17 Dunlop MT's, factory skid plates, magnaflow muffler.
ok the idea that a throttle body spacer is a waste is a joke. i had one on a ranger with a k&n (had the filter first with no improvement) and after the spacer and filter i got about a 3 mpg improvement. so saying a spacer is useless is actually quite an ignorant statement.
ok the idea that a throttle body spacer is a waste is a joke. i had one on a ranger with a k&n (had the filter first with no improvement) and after the spacer and filter i got about a 3 mpg improvement. so saying a spacer is useless is actually quite an ignorant statement.
If a spacer was worth 3mpg, Ford would have built the intake that way in the first place.
Please explain to us what exactly the spacer does that confers a 3mpg increase. That is the joke. The K&N filter is junk, the spacer a waste of money.
Glad they worked for you though....
__________________ 1999 Expedition XLT, big and green, 5.4, 4x4, 285/70-17 Dunlop MT's, factory skid plates, magnaflow muffler.
i honestly cant tell you what the difference is but i can tell you the numbers do not lie. i went from around 250 miles per tank to around 300 miles per tank, and did not change my driving habbits, just the spacer, and filter. i posted somewhere else, i did each one individually, then together. together is where the gain is. but 15 to 18 mpg is nothing to sneeze at and imo, well worth the $160 total bill, which is generally less than a cold air intake (junk).
I gotta k&n intake on my truck improved my mpg's power, throttle response everything and not to be an A** but if they were so called junk why is K&N, AEM,AIR RAID all still in business
the K&N and others make more noise on the intake system and that makes people think "power". Take the snorkle off the factory setup and you will hear the same "power". in the end it does nothing. you crusing down the road at 1600 RPM. The factory intake can supply air for 5000 RPM. What do you need more air for at 1600????
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2001 SuperCrew 4 x 4 5.4 XLT - 190,000 miles
2002 Explorer 4 x 4 4.0 XLT - 120,000 miles
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1999 Expedition XLT, big and green, 5.4, 4x4, 285/70-17 Dunlop MT's, factory skid plates, magnaflow muffler.
. i had one on a ranger with a k&n (had the filter first with no improvement) and after the spacer and filter i got about a 3 mpg improvement. so saying a spacer is useless is actually quite an ignorant statement.
