5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

air pump?

Old 12-15-2004, 01:30 AM
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Default air pump?

does the air pump need to be hooked up on my car?cause the previous owner deffinatly unhooked it and i think thats why im getting such terrible gas car is a 94 gt ,bbk O-R h-pipe,one chamber flows,355's and a why am i getting such ****ty gas mileage?any help would be greatly appreciated. -chris-
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Old 12-15-2004, 01:32 AM
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Default RE: air pump?

i dont think it would affect gas mileage that much, you drive a v8 of course its going to be bad, and no the smog pump doesnt need to be hooked up you get more power without it
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Old 12-15-2004, 01:41 AM
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Default RE: air pump?

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Old 12-15-2004, 04:35 AM
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Default RE: air pump?

smog pump would theoretically hurt gas mileage since it steals power. you might need to do a regular tune up,

spark plugs
plug wires
dist cap
dist rotor
fuel filter
air filter
oil + filter
pcv valve
lucas injector cleaner

i bet that will solve the problem.
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Old 12-15-2004, 02:26 PM
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Default RE: air pump?

the air pump just helps the catalysts do thier job... so naw.. its not gonna affect gas mileage as the others said....

so what kind of mileage are you getting...?

btw you're not gonna get the best mileage with the pedal to the floor all the time
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Old 12-15-2004, 03:11 PM
Join Date: Oct 2004
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Default RE: air pump?

you'll only get more power with the pump removed, and replace the belt w/ a shorter one. Just having the pump hoses disconnected won't hurt gas milage.
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Old 12-15-2004, 04:44 PM
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Default RE: air pump?

ya, take the pump out completely to get more power and a small improvement in miliage.

have you done a tune up like dbeck said? also, how do you drive? if your at 4K on the street all the time of course your going to get bad miliage
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