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post #1 of 8 Old 04-11-2011, 05:58 AM Thread Starter
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Air Noise

I just recently installed a cold air intake kit on a my 2000 F 250 7.3. Hooked up the fifth wheel on Friday and headed to the campground. Now whenever the motor winds up and changes gears (auto trans) I hear what sounds like air pressure being released when the RPM's drop off at gear upshifts. Everything seems to be installed correctly/tight. Only electrical involved was the temp sensor which was reinstalled in the new airbox as per directions. Never heard anything like this with the stock air box. Is this something I need to be worried about? I don't want to be driving it anymore until I know what's going on. I'm not real familiar with a turbo or the workings of it. Any ideas/help or opinions are greatly appreciated. Thanks in advance
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post #2 of 8 Old 04-11-2011, 06:09 AM
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if your filter is open or the box you will be able to hear the intake such as mine if a romp on it i can hear it sucking and if i let off quick you can hear it "despooling" or the woosh sound. the box is kind of like a muffler so when you take it off you can hear it. i wouldnt worry about anything just hearing ya motor work

--->Zach<---

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post #3 of 8 Old 04-11-2011, 06:34 AM
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yep i have the DIY intake and mine dose this too its like a schhhh! sound when i let off =]
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post #4 of 8 Old 04-11-2011, 06:43 AM
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Totally normal for these trucks.

Zach
2000/2006ish Ford F-250 Larryette 7.3 Powerstroke 4x4
5" Sewer Pipe Exhaust (video clip), DIY 6637 Intake, Wicked Wheel'd, De-foiled, Missing EBPV, Edge Juice with Attitude, Few leaves added here and there, 35" BFGs, 16x10 Eagle Alloys, Alpine W200

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post #5 of 8 Old 04-11-2011, 07:29 AM Thread Starter
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Thanks for the info. Next step is a turbo back 4" exhaust. I've owned the truck for less than a year and am making upgrades as money becomes available. Unless I get tunes or programmer should I be concerned about EGT's with the factory/stock "tuning"? Just curious. Thanks
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post #6 of 8 Old 04-11-2011, 07:45 AM
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Not really, unless you are running it really hard. I would recomend getting some gauges, specifically EGT and transmission temp. Definately get the gauges BEFORE the chip/programmer.
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post #7 of 8 Old 04-11-2011, 07:55 AM
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Sounds like turbo surge.My truck did it til I got my 38r.

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post #8 of 8 Old 04-11-2011, 03:39 PM
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get a wicked wheel. mine surged like no other untill i installed the ww and took the surge completly away



"BIG RIG" auto to zf6 swap 00 f-350 cclb dually,4in rough country lift, 6637, 7in mitre stacks, wicked wheel, foil delete,live tuned from bill at php,triple pod autometer gauges,315/75r16 kelly tsr's, 05 front end conversion, 2in spacers for rear,stage one swamps 175cc single shots,boost fooler, kennys dual disk clutch.
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