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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

7th Aug 2016 5:22pm

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.

7th Aug 2016 6:46pm

HardCharger

Member Since: 03 Mar 2013
Location: Manila
Posts: 740

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.

8th Aug 2016 3:56am

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20453

This may possibly of interest / help:
http://www.carstereo.com/help/Articles.cfm?id=71

8th Aug 2016 9:22am

vaucluse

Member Since: 04 Feb 2012
Location: SE London
Posts: 185

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

8th Aug 2016 9:17pm

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20453

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.

8th Aug 2016 9:24pm

Cold_n_Wet

Member Since: 15 Oct 2012
Location: Bergen
Posts: 244

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.

8th Aug 2016 11:38pm

vaucluse

Member Since: 04 Feb 2012
Location: SE London
Posts: 185

Thanks for your replies guys.

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

Many thanks

Mark

9th Aug 2016 6:30am

hornet

Member Since: 04 Jan 2010
Location: Western Europe
Posts: 361

Click image to enlarge

9th Aug 2016 2:44pm

vaucluse

Member Since: 04 Feb 2012
Location: SE London
Posts: 185

That's fantastic! Many thanks

9th Aug 2016 4:59pm

HardCharger

Member Since: 03 Mar 2013
Location: Manila
Posts: 740

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.

10th Aug 2016 4:24am

MYSTERY

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

Click image to enlarge

Click image to enlarge
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

23rd Jun 2019 5:45pm

MYSTERY

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

Earthing as I see it assuming c0550 as earth stud and not multi connector anyone confirm this

Click image to enlarge

24th Jun 2019 2:39pm

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