Member Since: 16 May 2013
Location: Tamworth Nr Birmingham
Posts: 87
Confused - any thoughts ?
Hi Guys
Few weeks ago I posted a thread where as I was having Discovery 3 start up issues. I would put the key in the ignition, wait for the flow plug light and self diagnostic test etc and then turn the key. Majority of the the time she would be sweet as a but however on occasions the engine would make like a clunk noise but not start.
I called the RAC out and they run their diagnostics. Seems the starter motor and alternator were great but did suggest I replace the battery as it was showing as replace. Battery was replaced however still did the same as above (good benefit I had of replacing the battery was that it cured the HDC feature was now available instead of being told for months that it wasn’t available)
Anyway so now back to square 1, I’m thinking it’s got to be the starter motor possibly seizing up. Booked her in at the garage and got a brand new starter motor supplied and fitted. All sorted so I thought until this morning, attempted to start her and she returned back to square 1, engine makes a clunk but don’t start. Few attempts and she fires up normally.
Could it be the immobiliser - question cam the battery in the key fob be replaced as I’m thinking if the battery in the key fob is due to be replaced then possibly not transmitting a strong signal to release the immobiliser ???? How do you get indie the key (Disco 3:
55 plate)
14th Jul 2018 10:30 am
Sea Raider
Member Since: 01 Nov 2016
Location: None
Posts: 4450
Rechargeable battery in the fob that charges when inserted into the ignition, I believe
Do you not have a spare key, that you could try
14th Jul 2018 10:33 am
DN D3 Decade
Member Since: 24 Jun 2006
Location: W.London.
Posts: 2294
The main feed to the starter motor, (red cable), is routed very close to other metal objects in places, some have chafed the insulation, and caused intermittent starting issues. Worth looking at D3 owned from new, P017 brake recall, BAS FBHIC, new FBH, LR013487 oil pump, new water pump. RRS front lower suspension arms. New suspension compressor/ relay. New Denso alternator. CuNifer rear brake pipes. New GKN rear propshaft. New HPFP belt & tensioner. New A/C Condenser.NO WARRANTY for many many years.
14th Jul 2018 10:41 am
aij615
Member Since: 16 May 2013
Location: Tamworth Nr Birmingham
Posts: 87
The garage that’s fitted me starter motor has installed a new motor motor and also fitted a new Earth wire
I’m so adamant it’s the immobiliser in some way
14th Jul 2018 4:32 pm
Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20727
The immobiliser wouldn't let the starter solenoid energize, and there would be no clunk
It's either a loose connection, or an earth issue. Routed from OS engine mount to chassis to body, which EU4 cars having an extra earth between transfer box and body...My D3 Build Thread
Member Since: 15 Jan 2016
Location: GL
Posts: 10362
It will be the relay in the box by battery.
My jag was Doing this.
Marked Sm
Considering the cost, worth replacing
14th Jul 2018 7:28 pm
zig
Member Since: 09 Sep 2005
Location: Scotland
Posts: 619
You could try swapping the starter motor relay with the heater fan relay which are of the same type.
Both are located in the fuse box adjacent to the battery (remove battery cover), there is a diagram on the underside of the fuse box cover which identifies which relay is which, the starter motor relay is identified by the letters SM and heater fan relay is indicated by a fan blade.
The part number for the relay is YWB500060 (relay referred to as a black with white stripe) and when I purchased one a few years back from a LR dealer they were £2.78 (including VAT)
16th Jul 2018 1:20 pm
aij615
Member Since: 16 May 2013
Location: Tamworth Nr Birmingham
Posts: 87
You guys are the bet, appreciate the advise - I’ll give it a whirl
Got a new problem came about which I will now post in new thread
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
