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Cold start terrible whine

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Old Nov 28th, 2019, 17:22   #1
Stu V8 2007
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Default Cold start terrible whine

On these cold mornings, I'm hearing a terrible whine from the engine bay, it lasts for about a mile or so. It's related to engine revs, and quite loud. Could it be a pulley? Would the noise of a pulley bearing stop once warm? Not sure what else it could be....not sure if I can record it nd put it on here?
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Old Nov 28th, 2019, 17:36   #2
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Belt slipping on condensation? Don’t know if that’s a thing these days though.
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Old Nov 28th, 2019, 17:38   #3
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Not a bad shout.
It's not quite the high pitched squeal you used to hear with old fan belts.
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Old Nov 28th, 2019, 18:13   #4
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Do you get a smell of burning rubber? If so belt slipping or worn belt.

If not could be something with a dry bearing - alternator, a/c clutch, idler etc.

I'd be tempted to have a listen with one of these....

https://www.ebay.co.uk/itm/MECHANICS...MAAOSwMuZbzYxY
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Old Nov 29th, 2019, 08:21   #5
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Thanks, no burning smell, will dig deeper this weekend.
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Old Nov 29th, 2019, 10:56   #6
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A quick way to tell if a belt is slipping is to spray or pour a little water onto it while the engine is running; I’m not talking about a lot, maybe a cup full at most. If the noise stops, then the belt is at fault; if not, then it is bearing related.
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Old Dec 9th, 2019, 17:19   #7
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Apparently the noise is the Power Steering Pump.

Volvo quote for replacement:

Remove/replace £323
Servo pump £380
Ring £5
VAT £144

Total: £862 (roughly)
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Old Dec 10th, 2019, 09:25   #8
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I had similar which fortunately transpired was a low fluid level in power steering due to a small leak
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Old Dec 10th, 2019, 09:35   #9
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They do get noisy when the fluid is low... That price seems a lot to replace it, it's a doddle on the D5's but not sure how accessible it is on the V8?
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Old Dec 10th, 2019, 10:50   #10
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Quote:
Originally Posted by Tannaton View Post
They do get noisy when the fluid is low... That price seems a lot to replace it, it's a doddle on the D5's but not sure how accessible it is on the V8?
The official time is over 3 hours so they are reasonable on labour ..
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