Question about 2003 Ford Focus

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Leak of power start up ok engine sound like its got a air sucking in

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Check the PCV hose that goes to the intake manifold. Over time they will collapse and leak. It is on the back side of engine just below the throttle body.

Posted on May 25, 2011

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O2 dodge dakota sounds like it sucking air at low rpms

Most likey is just the sound of air being sucked into throttle body. Some vehicles make louder noises like that especially if it has an aftermarket cold air intake. Because the air filter box muffles that sound. It's possible that it has a vacuum leak as well which can make a sucking noise if it's large enough. Usually a large vacuum leak will affect the way an engine runs though

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1997 crown victoria has a hesitation and sounds like it's sucking air?

That sounds like a vacuum leak. Check all the hoses, and the power brake booster, listen around while engine is idling to find source of vacuum leak. Once leak is repaired, you may need the trouble codes cleared.

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92 dodge dakota stalling,running rough,loss of power

Did you replace the fuel filter when you replaced the pump ?
Was it running rough before the pump was replaced.
Did you replace the cap and rotor too ?
"Sucking a ton of air" could be a vac leak, or the sound of the throttle open when the engine is bogging down.
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Jul 05, 2012 | Dodge Cars & Trucks

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I have a 96 sub, starts perfect, idles perfect, even takes off okay, but feels fuel staved at 30 mph, then spuddles, if i turn it off for 30 seconds it runs fine for 5 miles then repeats.....

sounds like you could have a air leak in the fuel line or you could just swap out your fuel filter for new but i would check for air leak in fuel line first. when i say air leak i mean that there is a hole in ur fuel line some where and what happens is that is sucks air into the system so the engine in turns starts to splutter under load you may also find fuel residue around the area where there is a leak, check this first if all is ok change out the fuel filter

Mar 03, 2012 | 1996 Chevrolet Suburban

1 Answer

1987 Chevy Silverado Fuel/Oxygen Problem

it seems you have already replaced sensors related to air/fuel mixture.
You need to check for vacuum leaks. If there is a leak after your maf sensor, ( a crack on intake manifold or related things like rubber hoses etc)
engine sucks more air than calculated by ECU(so o2 sensor reads lots of oxygen and gives error TPS thinks it is open wider than it should). this is actually extremely lean mixture situation. when you step on gas engine sucks more air than it requires actually and stalls.

to prevent this you need to find the source of vacuum leak. spray some brake pad cleaner to intake manifold (not to filter housing) try to hear the sound difference in engine. if it happens it means it is sucking cleaner inside engine.

give it a try.

Nov 25, 2011 | Cars & Trucks

1 Answer


intake sucking air or vacuum leak get a can of starting fluid crank the engine spray where you hear the sucking sound the most if the engine speeds up that s were the leak is

May 08, 2010 | 2004 Chevrolet TrailBlazer

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Sluggish on acceleration sounds like fan is running

Is your engine turbo charged?
Sounds like you have an air leak on 'induction' side.
If it's turbo charged, you have a leak or split pipe somewhere.
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95 Jeep spitting and sputtering

it sound like you have a problem in the air intake is there any air leaks there .

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