Engine whistle
Thread Starter
Instructor
Joined: Jun 2018
Posts: 111
Likes: 1
Engine whistle
Good morning folks. This may be a dumb question but because I'm new to this I figured I would ask it. I'm hearing a whistle coming from under the hood of my 84. Additionally every light in the car pulsating when engine running. The whistle does not sound like a belt squeak. But coming from that area. I was thinking maybe the alternator because of the area of the sound and the light issue. Thoughts??
Zen Vet Master Level VII
Joined: Mar 2016
Posts: 5,214
Likes: 1,173
From: Southlake, TX
A whistle is pretty indicative of a vacuum leak. I'd get under the hood, start the car and ... listen. You will be able to trace it pretty fast.
You flickering lights are probably a side effect of the whistle, meaning that the vacuum leak is causing the engine is running roughly and the alternator is not charging at potential.
You flickering lights are probably a side effect of the whistle, meaning that the vacuum leak is causing the engine is running roughly and the alternator is not charging at potential.
Thread Starter
Instructor
Joined: Jun 2018
Posts: 111
Likes: 1
A whistle is pretty indicative of a vacuum leak. I'd get under the hood, start the car and ... listen. You will be able to trace it pretty fast.
You flickering lights are probably a side effect of the whistle, meaning that the vacuum leak is causing the engine is running roughly and the alternator is not charging at potential.
You flickering lights are probably a side effect of the whistle, meaning that the vacuum leak is causing the engine is running roughly and the alternator is not charging at potential.
Le Mans Master
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
I would got by an auto parts store for the free battery and charging system test that some offer. Just to be sure they are both 100%.. Vacuum leaks that whistle are normally large ones.
