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09-02-2016, 03:09 PM | #1 |
AT Sedan - pulsing sound on deceleration
After a long drive, when I decelerate, at about 1000 rpms there is a pulsing sound. The sound itself decelerates and stops with the vehicle speed, if that makes sense. It sounds like Curly from the 3 Stooges — that's the only way I can describe it. "Woob woob woob woob woob."
The sound isn't very apparent when the car is first driven, but after a 70 mile commute and pulling into the parking lot at work it is quite loud. I do NOT have to press on the brakes for this sound to happen, although that certainly helps me reach the 1000 rpms. Shop thought it might be a stuck brake caliper and a warped rotor, but they think it might be the transmission. Any ideas? :) 2010 Yaris Sedan, AT, 243,000 miles <(not a typo)
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I love my Yaris, but I miss my Echo...! Last edited by Meechity; 09-02-2016 at 03:58 PM. |
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09-16-2016, 05:12 PM | #2 |
http://www.wikiupload.com/7LE0YI8ZQGQB91J
Audio Clip link above. I tried to attach but there is no option for video or audio.
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I love my Yaris, but I miss my Echo...! |
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09-16-2016, 08:04 PM | #3 |
1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
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your link doesn't work for me.
But you're probably just hearing the exhaust reverb. As the engine comes down on fuel cut, it comes to a point around 1000 or so RPM where fuel needs to turn back on and you sometimes get a bit of a lean mixture poping in the exhaust system. |
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