Very high pitched ringing on start up?
Thread Starter
6th Gear
Joined: Jun 2017
Posts: 6
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Very high pitched ringing on start up?
Started my 94 vette yesterday and heard a very high pitch ring. So I shut it back off and the ring still lasted a couple more seconds. Probably rang for a total of 10 seconds. When I immediately restarted it was gone. It doesn't do it every time I start it but most of the time especially after long periods of not driving (hours). Start up us the only time I hear it. Thoughts? Thanks
Last edited by Neutron3535; Aug 3, 2017 at 11:58 AM.
Zen Vet Master Level VII
Joined: Mar 2016
Posts: 5,218
Likes: 1,174
From: Southlake, TX
Without much info, my first guess would be the secondary air injection pump.
Have a friend start the engine while you stand at the drivers side front of your car and listen for the noise coming from the area in front of your tire and next to the radiator.
Have a friend start the engine while you stand at the drivers side front of your car and listen for the noise coming from the area in front of your tire and next to the radiator.
