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vaucluse



Member Since: 04 Feb 2012
Location: SE London
Posts: 185
2007 Defender 110 Puma 2.4 SW Java Black
Engine and Radio Issues
Gents,

Over the last week I've had a couple of issues which may or may not be related. When I'm sat at the traffic lights out of gear the engine starts idling roughly like it wants to stall. This lasts for six to ten seconds and all is well again. Also, the last couple of days I've noticed shortly after starting the revs surge between gear changes. Thirdly I've noticed that AM radio reception has terrible interference that rises and falls with engine revs (- normal headlights, no led's)

In four years of ownership I've never had any of these issues.

Any ideas as to what it may be?

Many thanks

Mark
Post #554282 7th Aug 2016 5:22pm
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Lorryman100



Member Since: 01 Oct 2010
Location: Here
Posts: 2686
Rough idle can be down to fuel starvation whether from a failing VCV or blocked fuel filter to biological contamination of the fuel lines.
Post #554295 7th Aug 2016 6:46pm
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HardCharger



Member Since: 03 Mar 2013
Location: Manila
Posts: 755
Philippines 2011 Defender 110 Puma 2.4 SW Stornoway Grey
My situation is somewhat related to this as when I rev the engine during normal drive, I get a whining sound, almost like the turbo coming from the radio when listening to music. The sound cannot be heard when the radio is off. Have LEDs but it also happens when the lights are off. My antenna snapped off though, could that have contributed? I'm planning to replace it with a Hirschmann Radio antenna from Nakatanenga with the ground. Will this solve my woes?

I never experienced this issue before.
Post #554383 8th Aug 2016 3:56am
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20673
United Kingdom 
This may possibly of interest / help:
http://www.carstereo.com/help/Articles.cfm?id=71
Post #554421 8th Aug 2016 9:22am
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vaucluse



Member Since: 04 Feb 2012
Location: SE London
Posts: 185
2007 Defender 110 Puma 2.4 SW Java Black
I suspect a dodgy earth may be causing these issues.

Can anyone pinpoint all the earthing points on a 2007 puma 2.4tdci 110 SW that I should check?

Many thanks

Mark
Post #554601 8th Aug 2016 9:17pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20673
United Kingdom 
I know of one up front under the front wheel arch on the outrigger, can't remember if it was OS or NS. Fairly easy to find.

Another on the transfer box underneath, intended for the rear loom.

Be careful with the bolts especially the one on the outrigger as IIRC they can shear so just a warning.
Best thing you can do is clean, tighten. (To a tight but not FT!) then corrosion protect once fitted back.

Anyone know of any other earth points? I'd be interested to know also if anyone does know.
Post #554603 8th Aug 2016 9:24pm
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Cold_n_Wet



Member Since: 15 Oct 2012
Location: Bergen
Posts: 247
Norway 
Im in agreement with lorryman, my 07 idled roughly changed the VCV did the learn and was fine afterwards.

Couldnt see what was wrong with the old one. "Rafiki" 2007 110 STW - Rolling rebuild.
Post #554620 8th Aug 2016 11:38pm
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vaucluse



Member Since: 04 Feb 2012
Location: SE London
Posts: 185
2007 Defender 110 Puma 2.4 SW Java Black
Thanks for your replies guys.

Can anyone point me in the direction of the locations of all the earth points?


Many thanks

Mark
Post #554639 9th Aug 2016 6:30am
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hornet



Member Since: 04 Jan 2010
Location: Western Europe
Posts: 362

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Post #554743 9th Aug 2016 2:44pm
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vaucluse



Member Since: 04 Feb 2012
Location: SE London
Posts: 185
2007 Defender 110 Puma 2.4 SW Java Black
That's fantastic! Many thanks
Post #554771 9th Aug 2016 4:59pm
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HardCharger



Member Since: 03 Mar 2013
Location: Manila
Posts: 755
Philippines 2011 Defender 110 Puma 2.4 SW Stornoway Grey
I've been looking for this information for quite a while now myself. I'm presuming that this still applies for 2011 Pumas?

Also, thanks, custom90steve! The article you linked seems to describe what I'm experiencing to a "T". Will check these out and let you know if it solves anything. Funny that this was never an issue until I lost the antenna.
Post #554907 10th Aug 2016 4:24am
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MYSTERY



Member Since: 14 Jun 2019
Location: Torquay
Posts: 10
United Kingdom 

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trying to get my head round Land Rovers connections their drawing refer to joints and ctaps but don't reference there location C00550 is mentioned and shown on drawings with the connection pins but no mention in their connection schedule.I know that C00550 is centre of the engine compartment rear and assume the connector is as the freelander a natural coloured multi plug that excepts tab earth wiresa image of the c0550 would help ,have attached header C0289 located behind the right of the dash which could be a source to trace the earth path
Post #778654 23rd Jun 2019 5:45pm
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MYSTERY



Member Since: 14 Jun 2019
Location: Torquay
Posts: 10
United Kingdom 
Earthing as I see it assuming c0550 as earth stud and not multi connector anyone confirm this

Click image to enlarge
Post #778786 24th Jun 2019 2:39pm
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TriniDaddy



Member Since: 23 Nov 2020
Location: 10.57422, -61.28906
Posts: 33
2008 Defender 110 Puma 2.4 XS CSW Arles Blue
Re: Engine and Radio Issues
vaucluse wrote:
Gents,

Over the last week I've had a couple of issues which may or may not be related. When I'm sat at the traffic lights out of gear the engine starts idling roughly like it wants to stall. This lasts for six to ten seconds and all is well again. Also, the last couple of days I've noticed shortly after starting the revs surge between gear changes. Thirdly I've noticed that AM radio reception has terrible interference that rises and falls with engine revs (- normal headlights, no led's)

In four years of ownership I've never had any of these issues.

Any ideas as to what it may be?

Many thanks

Mark


Did you get to the bottom of this one? I'm fairly certain I'm getting interference from my LEDs but also suspicious of a grounding issue as well. When the bluetooth adapter is plugged in the lighter and charging there's terrible noise on the radio (connected via the aux port). Also, rarely, I get a slight whirring when the compressor for the AC is engaged. Odd symptoms. Tackling it this week. 110 SW 2.4
IZUMI BLUE
Post #1063218 17th Mar 2025 11:16pm
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Ianh



Member Since: 17 Sep 2018
Location: Essex
Posts: 2193
United Kingdom 
Vaucluse last posted in the forum in 2018, and last posted on this subject in 2016.
I suspect they will not reply.
Post #1063241 18th Mar 2025 10:29am
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