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Old 01-20-2017, 12:43 PM   #1
Scooby Newbie
Member#: 303871
Join Date: Dec 2011
Default Grinding/whining noise from engine on cold start, alternator/compressor area.

Over the past few weeks, my engine compartment has made all sorts of fun noises.

The power steering pump went out, and was super groany and loud. I had it replaced a week or so ago when it started shuttering at low speed turns. Now i'm hearing this noise on a cold start:

At about 13 seconds is a good one, and again about 23 seconds.

It is a bit louder when first starting the car, and it diminishes to a softer moan, sort of like the pump but not. It isn't coming from the pump area, more the alternator/ac compressor area.

I think it might be tied to the idler pulley or tensioner? I replaced the belts about a year ago at 65k miles, currently sitting around 76k. Any ideas?

edit: It does appear to be linked to engine speed. When I was driving through my parking lot the noise would disappear as I clutched into neutral.
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Last edited by m0viestar; 01-20-2017 at 04:26 PM.
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Old 01-23-2017, 10:11 PM   #2
Scooby Wagon
Scooby Newbie
Member#: 391040
Join Date: May 2014
Location: upstate NY
2004 WRX Wagon


I'm thinking this is normal just because subies tend to be super loud and mechanical as people have said. Though mine makes the same noise and I am kinda interested if this is an actual issue because right now I ignore it haha.

I am going to assume the crank pulleys probably need to get pulled and greased since its an 04 and that is a long time.
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