Screeching sound in ignition start

PCULQUI

MEMBER
2005 TOYOTA SIENNA
3.3L
V6
4WD
AUTOMATIC
106,000 MILES

My vehicle starts fine but at the very end of turn on before reading key, there's a small screeching sound. Like a 2 second time frame. Usually happens in the morning after the car has been sitting there overnight.

Wednesday, June 24th, 2020 AT 12:52 PM

7 Replies

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Hi,

Does this happen when the engine first starts or as soon as you put the key in the ignition? Also, can you tell approximately where the sound comes from? For example; does it seem to be under the dash, under the hood and so on?

If at all possible, could you record it and upload it for me to hear and see what is happening?

Let me know.
Joe

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Wednesday, June 24th, 2020 AT 7:38 PM

PCULQUI

MEMBER
354 POSTS

No, not at start-up but right before the car turns on and I let the key go since the car is on.

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Wednesday, June 24th, 2020 AT 8:12 PM

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Does it seem to be coming from under the dash? Is it possible to record and upload the sound so I can hear it? I'm questioning if it is something with the HVAC. One of the actuators or air flow doors may be moving and creating that sound.

Joe

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Wednesday, June 24th, 2020 AT 9:29 PM

PCULQUI

MEMBER
354 POSTS

Okay. I'll record the sound and send it over. If it is as you said, does the actuator need replacing or just tightening up and where would they be located.

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Thursday, June 25th, 2020 AT 3:27 AM

JACOBANDNICKOLAS