Screech at initial cold startup

[Bradster]

Once a day, at first cold start up, there is a very loud screech almost as if the starter did not immediately disengage. At first I thought it might be the drive belt tensioner, but I replaced the drive belt and the tensioner seemed OK. It is a 97 Boxster.

Anyone else had this problem or have any ideas on where to start? Again, after the first start, everything is fine for the rest of the day.

Thanks.

Bradster

[bmcuscgr94]

I had a simliar problem on cold day startup. A little screech then it got louder when I turned the steering wheel. Lasted for a couple of seconds and then it was gone. Checked the power steering level and it was below the low mark. Added fluid and it went away. Now watching for power steering fluid leaks just in case. Mechanic son said it could be cavitation when ps pump sucked in air when fluid was low.

[gschotland]

I've had the same problem on my '02 S for the last few months, but now that it's getting warmer the noise is gone. Searching the forum I found that (in my case) it's the starter motor and the noise can be corrected by removal, lubrication and reinstallation, but it often goes away in warmer weather.

Some other posts said to check out the bearings in the pulleys, but I don't think tha would be a little squeal on start up only.

Search and you will find.

[Bradster]

Thanks. That confirms my suspicion.