6637 DIY intake question - Diesel Forum - TheDieselStop.com
'99 & up Upgrades and Aftermarket - 7.3L Engine Upgrading or adding OEM or aftermarket equipment to your 1999-Up Super Duty or Excursion with 7.3L Power Stroke diesel engine. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

 
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post #1 of 5 (permalink) Old 06-02-2013, 02:39 PM Thread Starter
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6637 DIY intake question

So I just installed the 6637 intake but it was a little too big, and when I closed the hood it kind of dented the filter, is this okay? I don't really notice a sound difference, but when I'm driving I seem to accelerate a little faster, and the RPMs take longer to shift. Also when I turned off my engine, there was a hissing noise coming from the back left of the engine bay, near the passabger side. And it eventually dies off, is this normal? Thanks!
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post #2 of 5 (permalink) Old 06-02-2013, 04:49 PM
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The reasons I didn't go with a tymar style filter...it is not secured and is really too big for practical purposes. The dent shouldn't hurt anything if its not huge, the filter will probably rub on the hood and the fender well and will eventually rub through. The hissing is the turbo slowing down. I never believed a bigger intake added any power on a stock truck, could it be that you just think its shifting different?


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post #3 of 5 (permalink) Old 06-02-2013, 05:58 PM Thread Starter
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I don't know if I'm just imagining it but it seems to shift around the 2800-3200 range when it used to shift around mid 2500. But again maybe I'm imagining it
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post #4 of 5 (permalink) Old 06-02-2013, 09:52 PM
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The only thing you fiddled with was the ambient air temperature sensor, which you left plugged in.. I wouldn't think that that would even affect the transmission strategy.

Drive it a while and see what it acts like on different occasions.


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Last edited by 91diesel; 06-02-2013 at 10:00 PM.
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post #5 of 5 (permalink) Old 06-03-2013, 12:17 AM Thread Starter
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The weird thing was when I took the old filter out, there were no sensors anywhere, I thought there were supposed to be 2?
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