bazzle Posted April 11, 2017 Share Posted April 11, 2017 (edited) Ive had a background noise ever since picking up my 2011 IS350 3 months ago. It is there under light throttle. ie. moving in traffic on and off accel. Can be heard a bit when cruising at 100kph. Sound like an injector but Im not sure. Sadly the Lexus dealer who sold me the car couldn't hear it :) If you listen to vid please turn up sound. Phone dropped the volume. Any other ideas? Bazzle Edited April 11, 2017 by bazzle LINK UPDATED Quote Link to comment Share on other sites More sharing options...
ilv1004s Posted April 11, 2017 Share Posted April 11, 2017 hard to tell with just that phone vid sound definately there though does the tapping intensity increase with rpm? Quote Link to comment Share on other sites More sharing options...
bazzle Posted April 11, 2017 Author Share Posted April 11, 2017 It does intensify but not by a lot. Hard to get a sound clip. Sounds better thru ear phones. Only there on light acceleration. Frequency makes it most notable from about 1k to 2k. My hearings not the best. Sometimes its seems louder, other times you tune out. grrr Quote Link to comment Share on other sites More sharing options...
2bling Posted April 11, 2017 Share Posted April 11, 2017 How many km,s on it. sounds like a tappet if it get any louder take it to Toyota it is virtually the same motor as the Aurion let us know cheers. Quote Link to comment Share on other sites More sharing options...
bazzle Posted April 11, 2017 Author Share Posted April 11, 2017 My original thought was a tappet but its not there all the time. Lexus service made a comment re one of the 2 fuel pumps could be doing it. Quote Link to comment Share on other sites More sharing options...
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