I have a 98 accord 4-cyl. with 122k miles and i have noticed a low hissing noise coming from behind the intake. The noise has been there for a long time. No check engine light and car runs very good. Is this normal with accords? I have checked everywhere and cannot find a vaccum leak. All comments appreciated.

 

Is it a hissing like air sucking into the engine??

 

stock or aftermarket intake.....it should be a normal thing though

 

it sounds like a combination of a hissing and sucking. The intake is stock (original).

 

check and see if maybe something is loose on the tubing part. It could be just a little hole


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91 accord dx
DAC intake
N1 exhaust

 

take a spray bottle, and spray water all over the intake and see if it goes away. then look for where it was.