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Re: Buzzing noise in engine compartment (was: no subject)



>> >>I noticed a medium level buzzing noise coming from the passenger
>> >>side rear of the engine compartment on the 5000S Turbo, is this normal?
>> >>What is it?
>> >
>> >Most likely Fuel Pump. 
>> > 
>>> [stuff deleted]
>> >
>> >With 2 89 100's that both buzz at idle.......both with over 90k miles
>> >
>> 
>> But why would the fuel pump cause a buzz in the engine compartment?
>> 						^^^^^^^^^^^^^^^^^^^
>> The fuel pump is in the gas tank, ain't it? I still reckon its the
>> frequency valve - which your '89 100 may not have, Mike - due to having a
>> differential pressure control valve instead.
>> 
>
>The noise could be from the fuel distributor and/or injectors if its from
>the passenger side engine compartment. This buzzing noise is normal.

More likley it's the Oxy Frequency valve.



Later!

Eric Fletcher
'87 5KCSTQIA2RSR2B

STEADI RIC@aol.com