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Old 02-10-2018, 10:32 PM   #1
HairyRichard
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'02 325i making a new noise. YouTube vid included.

Hey all

I think the "help a noob" tag is the most fitting for this one

First time poster though have used the site a handful of times already. I had a quick search through the forums to try and find an answer to my question though there are a lot of posts about new weird noises so it was like trying to find a needle in a haystack.

Here's the video of my engine bay and the noise:


Does anyone know or want to guess where the noise is coming from and what could have caused it?
I first heard it about a month ago and I THINK it's getting louder but that might just be me noticing it more and more._a_
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Old 02-11-2018, 09:43 PM   #2
HairyRichard
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I'll add that the noise doesn't start until about 30 seconds after I start my car. I can't hear the noise once I get over about 40km/h but it's still making it once I park.
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Old 02-11-2018, 09:57 PM   #3
2lua
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idler pulley? power steering pump???

Last edited by 2lua; 02-11-2018 at 09:58 PM.
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Old 02-11-2018, 10:18 PM   #4
armenh7
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10000000% a pulley. Either idler or tensioner. I'd replace both if you're gonna do the job since it's not expensive and they're all most likely original. Here's some videos of mine when they were bad
https://drive.google.com/folderview?...Ix1DdRbzx4xwCL
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Old 02-11-2018, 11:19 PM   #5
HairyRichard
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Quote:
Originally Posted by 2lua View Post
idler pulley? power steering pump???
armenh7 mentioned the idler pulley and going off his videos the sound is very similar.

Would the power steering pump make any noise like that if the car is just idle without moving the steering wheel?

I'm not the most car savvy
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Old 02-11-2018, 11:21 PM   #6
HairyRichard
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Quote:
Originally Posted by armenh7 View Post
10000000% a pulley. Either idler or tensioner. I'd replace both if you're gonna do the job since it's not expensive and they're all most likely original. Here's some videos of mine when they were bad
https://drive.google.com/folderview?...Ix1DdRbzx4xwCL
Thanks for that mate! In one of those videos the sound is very very similar!
Is it an easy enough job? (1-3 hours)
I have all the tools I'm just not the best when it comes to working on cars
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Old 02-12-2018, 12:24 AM   #7
armenh7
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Originally Posted by HairyRichard View Post
Thanks for that mate! In one of those videos the sound is very very similar!
Is it an easy enough job? (1-3 hours)
I have all the tools I'm just not the best when it comes to working on cars
I'm 16 and I managed to do it all by myself. I took my time and it was my first time working on any car. 3 hours would be a good estimate. It isn't hard at all, but you do have to be careful when taking everything apart since it's all old plastic. Many of my push-pins/rivets simply snapped, increasing the time it took to do the job. If you've got an automatic, you'll need a 32mm fan cluch tool off of eBay. Other than that, a simple tool kit with torx bits and you should be set. I did all of this with a $20 tool set from Walmart and the 32mm fan clutch tool
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Old 02-12-2018, 12:39 AM   #8
HairyRichard
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Quote:
Originally Posted by armenh7 View Post
I'm 16 and I managed to do it all by myself. I took my time and it was my first time working on any car. 3 hours would be a good estimate. It isn't hard at all, but you do have to be careful when taking everything apart since it's all old plastic. Many of my push-pins/rivets simply snapped, increasing the time it took to do the job. If you've got an automatic, you'll need a 32mm fan cluch tool off of eBay. Other than that, a simple tool kit with torx bits and you should be set. I did all of this with a $20 tool set from Walmart and the 32mm fan clutch tool
Thanks dude. Very helpful!

Do you think it would be worth buying a few extra push pins etc?
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Old 02-12-2018, 12:47 AM   #9
armenh7
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Originally Posted by HairyRichard View Post
Thanks dude. Very helpful!

Do you think it would be worth buying a few extra push pins etc?
Nope. If you want you can but it's going to be an unnecessary expense. After you get it out the first time, they'll come in and out easier. Instead buy a push-pin remover tool unlike me, where I used a flathead screwdriver
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