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whine from engine bay on very cold start

34894 Views 20 Replies 14 Participants Last post by  traildogck
so as the temps get colder, into the teens around here at night, my car has been making an odd whining noise when i first start her up in the morning. i don't know how to describe the noise, other than that it sounds like a stall horn in a cessna, though only anyone whose flown in one would know what i'm talking about.. it's not a super loud whine, but it's definitely audible over the engine noise. the pitch of the noise goes up and down with RPMs, but oddly, it also is effected simply by moving the steering wheel. stumped as to where to even start looking, but i almost sounds like a very mildly squeaking belt, if that is possible.. it goes away after the car warms up a bit, then runs perfect after that.

wondering if anyone else has run into this?

what i need to do is wait until this weekend and pop the hood after i start it to see where the noise is coming from. i have not had time to do this in the mornings before work... so really just putting "feelers" out there to see if anyone else has seen this, i will post more info tomorrow.

what i ultimately need to do is put the ol scoob in a garage! :D too bad i don't have one.
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Make sure your coolant is not freezing! - also with the older Subaru's there is a simple Oring seal on the power steering pump that is very easy and cheap to replace very cold temps can cause one thats about to go to more or less go - the result is air getting sucked into the power steering pump and yes it gets loud. That would be my first item to check on a 2002
I actually suspect this, and have the oring because I have a small leak there. But since the sound is there whether I'm turning the steering wheel or not, I don't suspect this. It does get slightly louder when turning the steering wheel. I will change it out this weekend and hope it doesn't get this cold again!
The pump is being driven by the car at all times so if its sucking air via the Oring then its going to be noisy as long as the car is running. Turning simply changes the pressure ie load on the power steering system hence change in noise etc. Given the sound changes pitch etc when you turn fair bet its your Power STeering.
I know both sounds well. The Subie sound never concerns me...both of mine do the same thing here in NE Wi...just chalked it up to "it's too cold for anything to be running". The same sound blaring from a 177 "Gutless" or a "Flying Chevette"(172) requires just a tad more attention!:D
Oh yes I know that sound. Though tried to keep my flying time to better machines. The Verieze sorta destroyed my interest in flying 1940's technology.
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