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How-To: Gotts Mod for 2009 / 2010 (w/ pics)

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Old 03-21-2010, 08:00 PM
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How-To: Gotts Mod for 2009 / 2010 (w/ pics)

Hey guys, if you're like me and have a 2009/2010 F150 and are a little hesitant to rip it open and figure out how to do the infamous Gotts mod on your truck, I'll save you some time. I've heard several people offer different ways of doing the mod on the '09/'10, but I think this one is the easiest.

Time: about 10 minutes.

Difficulty: novice

What you'll need:
  • Flat blade screwdriver OR 8mm wrench/hex head
  • 13mm wrench

1) Remove the negative terminal from the battery with either the flat blade screwdriver or the 8mm wrench.

This resets the engine computer so it will recalibrate with the increased airflow..and prevents other bad things that may happen when messing with the electrical equipment.




2) Remove the Mass Air Flow Sensor Cable and Loosen the nearby hose clamp (8mm / flat-blade bolt).




3) Release the 3 clips that hold the top of the air filter box and remove the assembly from the rest of the intake.




4) Remove the two 13mm bolts holding the lower part of the air filter box to the truck.



5) Remove the lower portion of the air filter box by pulling it strait up. At this point it is held in by just two plastic nubs resting in rubber grommets (see second picture down).

BE CAREFUL NOT TO RIP THE COOLANT HOSE WHEN YOU PULL OUT THE ASSEMBLY. IT WILL ALL OF A SUDDEN JUST COME OUT. YOU'VE BEEN WARNED.



Rubber grommets that are holding the box in:





6) Remove the snorkel from the air filter box. Do this by pressing down on the inside tab of the snorkel while pulling from the outside.



7) Put everything back the way it came out and you're done! Very simple, nothing that can't be undone if need be.

The snorkel you'll pull out:



Like I said, the whole process shouldn't take more than about 10 minutes. To be honest, I haven't noticed much of a difference in throttle response or power, but according to ASEMechanic, there is indeed some advantage to doing this:

http://www.f150online.com/forums/200...ts-2009-a.html
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Old 03-21-2010, 09:10 PM
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Great write up!
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Old 03-22-2010, 10:15 AM
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Great info.....thanks for sharing.
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Old 03-22-2010, 10:41 AM
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I have noticed a gain of 1-2 mpg's both in city and highway so far, I have yet to disconnect the battery and let the system re-learn the curves and such.

I diud however notice a good intake "honk" and 15-1600 RPM's, not bad...just thee, canb't wait to pout on the gibson sport dual's and see what happens.


Is anyone going to fit a larger pipe or hose to the fenderwell? i am on the fence so far.
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Old 03-22-2010, 10:55 AM
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Quote:
Originally Posted by sgerry View Post
I have noticed a gain of 1-2 mpg's both in city and highway so far...
Very interesting...

Can I ask if this is based on the truck computer or is it hand calculated?

Thanks!


And to ncTidalWave:

Great job and of course:


Last edited by shotgunz; 03-22-2010 at 12:13 PM.
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Old 03-22-2010, 03:17 PM
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nice, now all i need is a new truck
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Old 03-22-2010, 03:54 PM
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Sorry, should have mentioned in the previous post. This has been on the display. i havent run a full tank through yet.
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Old 03-22-2010, 09:20 PM
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Question

Where is the part everyone refers to as a 'silencer' that I hear should be left in place?
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Old 03-22-2010, 09:48 PM
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That easy? Must be nice to have a new Ford!
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Old 03-22-2010, 10:17 PM
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Quote:
Originally Posted by Grunthunter View Post
Where is the part everyone refers to as a 'silencer' that I hear should be left in place?
The silencers are those large "nubs" that are attached to the air intake, as seen below. They are called Helmholtz filters and work to cancel out the "drone" that is normally associated with after-market Cold Air Intakes (thanks, ASEMechanic for that info!).



(original image taken from AIRAID's website)

Last edited by ncTidalWave; 03-22-2010 at 10:21 PM.
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Old 03-28-2010, 07:47 PM
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just to add i made a pipe to replace the silencers and lost about 1 mpg and felt like a slug
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Old 03-28-2010, 07:59 PM
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Quote:
Originally Posted by redfx4150 View Post
just to add i made a pipe to replace the silencers and lost about 1 mpg and felt like a slug
Wait...what exactly did you do?
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Old 03-28-2010, 08:09 PM
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i made my own air tube from the box to the intake


but lost highway mpg so i went back to stock
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Old 03-28-2010, 08:38 PM
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^That's very interesting... I don't know why that would be. Did you try disconnecting the battery for >10minutes? If not, you may want to try it again and see if the computer resets and accounts for more air coming in. You were probably running too lean of a mixture. Just my guess.
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Old 03-28-2010, 09:06 PM
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i did disconnect the battery

i ran this two months i was hard pressed to get 17 mpg on my long highway trip
back to stock tube same trips 18 to 19

all of this i had a afe pro dry filter and no snorkel
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