Loud Engine Whine - Need Some Advice & Suggestions - Saab 9000 Bulletin Board - Saabnet.com
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Loud Engine Whine - Need Some Advice & Suggestions
Posted by Dave C. [Email] (more from Dave C.) on Sat, 11 Jul 2009 19:05:45
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I've got a 86 9KT with 297K Miles. I have this LOUD screeching whine when I crank up the car. I recently replaced the PS pump and the High Pressure and Return Hose hoping to stop a leak and fix this noise. Looks like I stopped the leak (while parked) but the screech remains.
I got thinking for suggestions here that it might be the alternator; my battery light was illuminated while engine was running. I replaced the alternator and the screech is as loud as ever.
I took off the AC belt - screech remains. I listened to the turbo with a piece of hose and it was not the source.
I listened but the screech is loud and difficult to locate. My wife says she's heard that noise for sometime and that it goes away after the car runs a bit.
Is this the sound of air in a pressurised system or should I be looking at the oil pump or something else.
I replaced the clutch and pressure plate, throwout bearing etc about 20K miles ago, and the water pump turns freely and does not leak. I replaced the timing chain, guides, positioner about 10K miles ago.
I'm stumped and need to get my old friend back on the road. I would sure appreciate any thoughts, tips or advices.
I have no idea where to look next!
thanks all,
Dave C.
posted by 75.52.162...
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