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Howard

Member Since: 06 Nov 2012
Location: Oxfordshire
Posts: 41

2012 Defender 110 Puma 2.2 PU Alpine White

Cold start

It’s that time of year when you find the truck doesn’t like starting in the cold .

Can somebody tell me which of the relays on the attached picture is for the heater plugs and is the multi plug by the oil filler on the second picture the cables the supply to the plugs?

Finally is it straight forward removing the inlet manifold.

The truck is. 2.2 - 2014.

Thanks

Click image to enlarge

30th Dec 2020 12:45pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

Click image to enlarge
not a relay (ecu ) glow plug

Click image to enlarge

Last edited by dorsetsmith on 30th Dec 2020 2:52pm. Edited 1 time in total

30th Dec 2020 2:41pm

Howard

Member Since: 06 Nov 2012
Location: Oxfordshire
Posts: 41

Thank you, where will I find the glow plug ECU.

30th Dec 2020 2:44pm

williamthedog

Member Since: 29 Dec 2012
Location: south wales
Posts: 3441

Just put a meter on the feed to the glow plugs, engine side, turn on ignition and see if you got power there. At least you've checked it all the way to the glow plugs this way. Manifold is easy to remove, ideally you should fit new gaskets (8 of) Done mine at the start of the month and there was only one working. Started quite well for that though. Just be careful removing the glow plugs. They have a habit of snapping. Spray releasing spray on them for a few days. Try and get them out when the engine is warm.

30th Dec 2020 3:24pm

Howard

Member Since: 06 Nov 2012
Location: Oxfordshire
Posts: 41

Thanks guys for the information. "dorsetsmith" the wiring diagrams are very useful, but unfortunately I can't read the text even when I've printed them off. But I get a general idea. Is the "junction box battery" the fuse board under the drivers seat, it appears the the ECU for the glow plug is powered via a relay and fuse housed in the box? If this is the case which are they

I haven't had time to check the supply to the plugs on the engine side. It appears different to the wiring on our 2.4 Puma.

I noticed today the glow plug light on the dash is no long working.

Ta Howard

31st Dec 2020 7:28pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

link to wiring diagrams left hand drive one but just as good

https://1drv.ms/b/s!AtZSoWFHDgnGlB8iSFfsA9JN_EFj?e=wqacfo

31st Dec 2020 8:12pm

Howard

Member Since: 06 Nov 2012
Location: Oxfordshire
Posts: 41

Thank you for the link, most appreciated.

6th Jan 2021 9:07pm

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