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Hi Folks,
Just wondering if anyone else has experience with this noise i am hearing. I have a 2004 158" bus, and find that around 65 mph, in low gear, around 2500 rpm, if I am under load, say climbing a small grade, or have weight in the vehicle, I hear a fairly loud Hummm noise coming from underneath, when I press the gas pedal not to the floor or anything, just pressing the pedal an inch or so.
It is a very low frequency noise, almost like a subwoofer kind of noise?
I am under warranty, so I just want to make sure i can "help" a tech with diagnosing this as I hate going back for the same problem on numerous occasions?
Any insight to this would be very much appreciated. I have read about a valve in the fuel rail or something here, common failure on 2004's, but was not sure if this is what this sounds like?
Many thanks in advance,
Tibor
Just wondering if anyone else has experience with this noise i am hearing. I have a 2004 158" bus, and find that around 65 mph, in low gear, around 2500 rpm, if I am under load, say climbing a small grade, or have weight in the vehicle, I hear a fairly loud Hummm noise coming from underneath, when I press the gas pedal not to the floor or anything, just pressing the pedal an inch or so.
It is a very low frequency noise, almost like a subwoofer kind of noise?
I am under warranty, so I just want to make sure i can "help" a tech with diagnosing this as I hate going back for the same problem on numerous occasions?
Any insight to this would be very much appreciated. I have read about a valve in the fuel rail or something here, common failure on 2004's, but was not sure if this is what this sounds like?
Many thanks in advance,
Tibor
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