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High Pitched Startup Noise

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New User

Aug 3, 2018, 2:23 PM

Post #1 of 2 (372 views)
High Pitched Startup Noise Sign In

I have a 2005 Ford Mustang V6 with 75k miles on it. I bought it about a year ago and when winter started i began to hear a weird, loud, high pitched noise when I started the car. I wasn't able to figure out what is was but I assumed it was the starter. Once it became warm out again the car stopped making the noise but then (towards the start of summer) I started to hear the noise again.

Some people said online or in person that it was the starter while others said it was the AC and I just need to make sure I don't start the car with the AC on. I tested different things and found that whenever I turned on the electricity, then turned the AC on, then turned the car all the way on that it didn't make the noise (weirdly). That was about a week ago but now the car makes the noise loudly no matter what I do. I took a video of the noise (link below) and was wondering if anybody could help.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 3, 2018, 3:34 PM

Post #2 of 2 (363 views)
Re: High Pitched Startup Noise Sign In

You're going to have to narrow down specifically where that noise is originating from.

I can pretty confidently say it's not the AC but there are numerous possibilities beyond that. Have someone else start the car while you have your head under the hood and try to pinpoint the direction of the noise.


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