Quick whining noise when shutting down car? (Sometimes when unlocking doors)

370Fan2000 · 12-01-2012, 12:14 PM

cool, for me it was definitely the door lock actuator. They replaced it and it went away.

macaddict111 · 02-15-2013, 01:47 AM

Keep in mind the ECU does a self-check/calibration on basically all the engine servos (throttle bodies and VVEL actuators) about 2-3 seconds after you shut the engine down. You'll hear the Pulse Width Modulation frequency (the mid-frequency digital sound you can hear from the engine always while running), and some clicking/clunking as it runs them through their full range, and then quiet. I LOVE THIS PROCEDURE'S SOUND!!

mdesai415 · 04-15-2013, 02:56 PM

Cool I'll check out the door lock actuator.. I also have the same issue, most of the time I turn off the car it makes that noise. Also before I turn off the car, I unlock the doors and that noise is present. I have an oil change comming up, so ill bring it up to them. Thanks.

02-15-2013, 01:47 AM	#32 (permalink)
macaddict111 Base Member Join Date: Apr 2012 Location: Tacoma, WA Posts: 33 Drives: '09 370z White Auto Rep Power: 13	Keep in mind the ECU does a self-check/calibration on basically all the engine servos (throttle bodies and VVEL actuators) about 2-3 seconds after you shut the engine down. You'll hear the Pulse Width Modulation frequency (the mid-frequency digital sound you can hear from the engine always while running), and some clicking/clunking as it runs them through their full range, and then quiet. I LOVE THIS PROCEDURE'S SOUND!! __________________ "They misunderestimated me."

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
BIZZARE NOISE..from unlocking doors	zrider	Exterior & Interior	21	04-16-2013 05:13 PM
Noise when Shutting off the car?? ANYONE?	bluntman5551	Nissan 370Z General Discussions	18	04-15-2013 03:05 PM
Whining Noise From Engine Bay	iviegatron	Engine & Drivetrain	8	01-26-2011 04:45 PM
Whining Noise - UPDATE!!!	jloomis13	Nissan 370Z General Discussions	6	06-04-2010 01:40 PM
Unlocking both doors simultaneously with door handle request button	Musashi	Nissan 370Z General Discussions	18	03-21-2009 03:59 PM

12-01-2012, 12:14 PM	#31 (permalink)
370Fan2000 Base Member Join Date: Apr 2011 Location: VA Posts: 115 Drives: 2010 370z Sport Rep Power: 14	cool, for me it was definitely the door lock actuator. They replaced it and it went away.

04-15-2013, 02:56 PM	#33 (permalink)
mdesai415 Base Member Join Date: Apr 2013 Location: Arizona Posts: 3 Drives: 2011 Nissan 370z Rep Power: 12	Cool I'll check out the door lock actuator.. I also have the same issue, most of the time I turn off the car it makes that noise. Also before I turn off the car, I unlock the doors and that noise is present. I have an oil change comming up, so ill bring it up to them. Thanks.