That is the sound of your K&N sucking in a lot more air than ever before.
Part of the sound is because the design of your throttle body. You probably
are getting less miles per gallon because you are in the throttle more than
before. If you drive more conservative ( which is hard to do when you make
horsepower mods) you will most likely see an increase in gas mileage.
----- Original Message -----
From: "Dave" <ded74@yahoo.com>
To: <dakota-truck-moderator@bent.twistedbits.net>
Sent: Tuesday, July 17, 2001 18:34
Subject: DML: Gained Power, lost mileage, and what is that sucking sound???
> Hey all, I'm back, don't have my new baby, family emergency forced me to
> postpone my purchase. I have a question for you tho, I put in 3923's and
> went to a Edelbrock 14x3 open element air cleaner. I gained power (at
least
> I can feel it), but I seem to have lost some gas mileage, like around 2
mpg.
> And there is also a sucking sound when I'm pressing or letting off the
> throttle, if it's idling or WOT it's ok. My bro said it might be a vacuum
> leak? Does that sound right, and would that rob my mileage? And if
that's
> it, what do I do? Thanks guys.
> --
> Dave
> Denver, CO
> '93 Sport 4x4 V-6
>
>
>
>
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