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Chirp Squeak Screech
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trailhound
 


Member Since: 27 Aug 2015
Location: Colchester
Posts: 697

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3
Chirp Squeak Screech

Mine squeaks from under the bonnet when I switch the ignition off, but only occasionally at the moment.
I've read loads of threads on here about belts and pulleys, during starting, idling and certain rev ranges, but not on switching off. Any Ideas?  
Post #17888858th Mar 2017 8:40 pm
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lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

United Kingdom 2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti GreyDiscovery 3

My money (all 10p of it!) is on the lower tensioner, the squeak is the belt jumping back to its natural position as the engine stops.  
Post #17889068th Mar 2017 9:41 pm
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trailhound
 


Member Since: 27 Aug 2015
Location: Colchester
Posts: 697

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

Does it need replacing as a matter of urgency?  
Post #17889268th Mar 2017 10:17 pm
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trailhound
 


Member Since: 27 Aug 2015
Location: Colchester
Posts: 697

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

Noticed it was a little squeaky when cold idling today, seemed okay when warmed up later.
Is this something I should sort out immediately or do I have time for a DIY attempt over Easter?  
Post #178973410th Mar 2017 7:37 pm
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geoff.
 


Member Since: 24 Jan 2010
Location: West kent
Posts: 8531

England 

get it looked at asap Thumbs Up  
Post #178974310th Mar 2017 7:46 pm
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trailhound
 


Member Since: 27 Aug 2015
Location: Colchester
Posts: 697

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

Thanks Geoff. No Rugby for me tomorrow. Sad  
Post #178974910th Mar 2017 8:04 pm
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trailhound
 


Member Since: 27 Aug 2015
Location: Colchester
Posts: 697

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

Quick question. Is it okay to run the engine for a minute or so with the fan removed just to check the belt running (for squeaks etc.)  
Post #179157014th Mar 2017 9:43 pm
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lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

United Kingdom 2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti GreyDiscovery 3

I would say if the engine is cold yes fine no issues.
If you look at the tensioner or idler with engine off and can see shiny pulley either side of where the belt runs that shows you its been skipping about, Mine had done 100k when I replaced both tensioners and the belt, I used genuine tensioner and idler and copy belt.

I do this job all the time at work on the trucks sometimes the belt and tensioner wont even last 1 year 100k and thats genuine parts, it may seem expensive but if it fails on the road its going to be a lot more expensive in time and hassle never mind what you screw up if you dont notice and cook the engine.
We call it preventative work and less breakdowns means you are doing a good job.

Of course if its a scania you are on a hiding to nothing no matter what you do Whistle  
Post #179168015th Mar 2017 8:18 am
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