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Old 01 Oct 2008, 04:18 am
Join Date: Oct 2007
Posts: 42
Default cold air intake problem?

i have a 2003 honda civic si and it has a AEM cold air intake but that intake is the one that goes all the way to the bottom in the bumper and i want to know if when it rain i have to change it or it wont happen anything please help what should i do?
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Old 01 Oct 2008, 04:31 am
Join Date: Aug 2007
Posts: 69

look at the rest of your intake there anywhere else for the motor to draw air from (a foam junction or a y-out perhaps)?if not, then the motor is going to create a bit of suction out there at the end of the intake. if you drive deep enough water, the motor will not be able to get air, and it will choke out and die. push it out of the water, let it dry out, and drive away.if your motor is moving fast enough, it will actually suck water, which will likely result in a hydrolock, bending or breaking connecting rods and causing general havok. if the car runs again after probably will not run well, and the motor will probably need to be fixed or replaced.get a shorter intake, or be cautious when driving in the wet.
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Old 01 Oct 2008, 04:46 am
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A better description of the intake would help, alot of low CAI's like that have 2 parts so that you can attach the filter to just half of the intake during the rainy season.
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Old 01 Oct 2008, 05:01 am
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in addition to the above answer, get a water bypass valve from aem for your intake
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Old 01 Oct 2008, 05:16 am
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yeah if you suck up water you'll blow your motor so its best to buy a two piece intake so when it rains just pop hood and disconnect it thats what i do and i'm motor blown free
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  #6 (permalink)  
Old 01 Oct 2008, 05:31 am
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Solution AEM bypass valve. Goes inbetween the upper and lower pipe. The bypass valves doesn't restrict air so you don't lose power but traps in water so it doesn't make it to the engine. But just because you have a bypass valve doesn't mean you can take on the big puddles, stay out or you'll be stuck.
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