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Edskoi

Member Since: 13 Aug 2013
Location: KZN
Posts: 2

2011 Defender 90 Puma 2.4 HT Alpine White

Three(3) squeeks when switching off?

Over the past 2 weeks, when switching off my Defender (Puma 90 Diesel with 2.8 Ford Transit engine), I hear 3 or 4 loud squeeks (Like some unoiled plates rubbing together. It appears to come from somewhere near the top RH side of the engine block. Any ideas as to cause? Edskoi

19th May 2014 7:14pm

munch90

Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

egr valve

19th May 2014 7:18pm

bpman

Member Since: 21 May 2008
Location: Oslo
Posts: 8069

2008 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black

egr valve self cleaning - perfectly normal (if you have an egr valve)

19th May 2014 7:18pm

zone30

Member Since: 07 Sep 2012
Location: Gent
Posts: 669

2011 Defender 110 Puma 2.4 X-Tech LE Nara Bronze

I had mine replaced recently under warranty. Quiet as a mouse again.
I've read that it is because it dries out. Don't think it's really an issue, just a bit noisy.

If it's true, I would very much like to know how to prevent and/or solve it when it happens.

19th May 2014 7:35pm

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20281

They usually do it when older I think, mine doesn't squeak at all only do the cleaning cycles.

19th May 2014 7:41pm

munch90

Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

inside the egr valve are a electric motor and gearbox that drive the spindle opening and closing the valve , the trouble is the black sooty smoke gets passed the spindle and fills gearbox with carbon and dries all the grease out and just clogs everything and in the end seizes them solid also inside there are position indicators that get covered in soot , I know this because I have broke them open to see what's inside

sometimes you can see traces of black soot around the joint on the valve normally where the clips are that hold the gearbox cover on if you can see this it's knackered

Last edited by munch90 on 19th May 2014 9:06pm. Edited 1 time in total

19th May 2014 7:59pm

bpman

Member Since: 21 May 2008
Location: Oslo
Posts: 8069

^^ fit for purpose

19th May 2014 9:01pm

Edskoi

Member Since: 13 Aug 2013
Location: KZN
Posts: 2

Thanks for info guys, Based upon your replies, especially soot build-up, I have decided to only use low sulphur Diesel (50 ppm instead of 500 ppm) is now available in South Africa. Edskoi

20th May 2014 5:21pm

Naks

Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2632

2010 Defender 90 Puma 2.4 SW Alpine White

Edskoi, only use 50ppm.

Also, if the EGR self-cleaning is screeching, have it seen to.

When the EGR was still active on mine, I found that using 2-stroke oil made it quieter.

this is what a normal EGR cycle sounds like: --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged

Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

20th May 2014 5:46pm

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20281

Premium fuel is all I use, no supermarket stuff at all ever.

20th May 2014 6:25pm

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