The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

air intake drone - what, how to stop? 700 1987

posted by  someone claiming to be andy crosby on  Sat Sep 18 09:31 CST 2004 [RELATED]

Some timie ago I posted a question, no takers, on how I could reduce a low-frequency drone I am getting. I've replaced everything from the exhaust manifold gaskets through to the tailpipe (Borla, whose website says they specifically "design out" low-frequency noise), and I still get it at 2,000 rpm and above, in any gear.

Eventually I came across this quote on another car board: "Air intake drone will increase (this is an annoying low frequency noise that appears with heavy throttle at low rpm)."

Does the Volvo world recognize "air intake drone?"

Is there any way to stop it? I love my 740, which would cruise like a dream if it didn't do this to me.

Maybe add a second air box with filter to split the load coming in? Would this upset the vacuum conditions at the AMM and/or elsewhere in the intake system. Would "upsetting" it have any bad consequences?

Any ideas?

Andy Crosby (also have an '85 240 -- no drone)






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.