Strange intermitten humming noise
11-14-2008, 03:20 PM
#1
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Strange intermitten humming noise
coming from around the cruise control area in my engine bay while my h22 is off. Can anyone enlighten me as to what this strange noise is? I used the search function and found this thread- https://honda-tech.com/zerothread?id=1263765 Still didnt provide anything certain tho. Thanks in advance guys.
11-14-2008, 07:02 PM
#3
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Re: Strange intermitten humming noise (firaga21)
What year car? There are a few things that can buzz - but, if the key is off - I would check out the three relays nrxt to the cruise control. I believe that atleast one is for the radiator fan. I have a toyota that I know the fan can come on with the ignition off. If the coolant temp switch is bad, you could get a buzz or the fan exhibiting strange behavior.
11-15-2008, 03:02 PM
#5
Honda-Tech Member
Re: Strange intermitten humming noise (firaga21)
When working on headlights, I found that mine (93) has a vacuum canister hidden in the fender just above and to the front of the driver side front wheel. I had no idea the thing was there - but there is a vacuum line going through the metal right next to the cruise control. In my case, the car was in a minor fender bender and the canister broke loose from the wheel well - no it vibrates and makes noise when the engine is idling.
In your case, maybe it is leaking.
In your case, maybe it is leaking.
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