Slow, steady knocking sound before ignition (and after) from front side passenger door/window.

Asked by oogabooga Aug 04, 2012 at 11:10 PM about the 1991 Toyota Corolla Base

Question type: Maintenance & Repair

Knocking sound feels like it is coming from the front side passenger door/window. It is steady and
slow, medium volume. It sounds just like somebody is outside, knocking, trying to get your attention.

Knocking begins as soon as the key turns onto semi-on mode where just radio and windows work.
When I fully start the engine the noise stops for 1 second then continues as before.

Haven't tried driving it or revving it. Tried opening/shutting the passenger door/window to no avail. Car
has 240,000mi on it.

2 Answers
785

Andrew answered 11 years ago

Since it's coming from the door, I'd say bad speaker. It cuts off for a second when you turn the car on because all electrical power is cut and re-routed to the starter.

Mark helpful

oogabooga answered 11 years ago

It was the crap antenna doing something, just turned off the radio and it is fixed! Woohoo, my engine isn't ruined!!!!

Mark helpful

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