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Irish rover

Member Since: 25 Feb 2025
Location: Leinster
Posts: 9

My 110 won't start

Hi, I've just replaced my bulkhead on my 2999 td5 110 and all went good, until trying to start her?? It will crank over but no sound from fuel punp, no engine light and temp gauge goes immediately up to red?? I've checked the fuel pump relay 👍 and I haven't went bead the back of the Defender when doing the Bulkhead, so it must be up front? The previous owner had lots of dodgy wiring for spot lights and a alarm, I removed all these and was left with basic defender loom, I'm no electricians 😕 so if you can help me in layman terms I would be very grateful.
Thank you

18th Mar 2025 2:07pm

Irish rover

Member Since: 25 Feb 2025
Location: Leinster
Posts: 9

1999 Defender 🙄, big fingers, small keypad😁

18th Mar 2025 2:08pm

revd

Member Since: 20 Apr 2024
Location: England
Posts: 279

removing the alarm may have upset the inbuilt immobiliser

18th Mar 2025 2:48pm

Irish rover

Member Since: 25 Feb 2025
Location: Leinster
Posts: 9

Yes I'm starting to think that? Everything else is working lights, wipees etc, starter and battery are strong, I just can't figure out why the fuel pump and the engine light are not working??? It's recking my head 🤪

18th Mar 2025 3:58pm

Ashbyandy

Member Since: 17 Dec 2015
Location: Leicestershire
Posts: 227

2015 Defender 110 Puma 2.2 Adventure Phoenix Orange

With the temp gauge going into the red, it sounds like it might possibly be an earth problem. Have you reconnected the bulkhead earth wires where you must have disconnected them, ie in the engine bay etc, just a thought,

Ashby Andy 👍

18th Mar 2025 4:03pm

landy andy

Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 6006

2006 Defender 110 Td5 USW Zermatt Silver

The emergency fuel cut off button is connected and reset???

18th Mar 2025 5:16pm

Irish rover

Member Since: 25 Feb 2025
Location: Leinster
Posts: 9

Thanks everyone, yet I've been checking the earth's I will get the wiring diagram and double check, these wiring diagrams are not easy to follow, unless your an auto electrician,which I am definitely not 🤔. Where is the emergency fuel cut off switch??

18th Mar 2025 8:05pm

rustandoil

Member Since: 08 Sep 2012
Location: Cotswolds
Posts: 886

2005 Defender 110 Td5 XS DCPU Bonatti Grey

Fuel cut off is on the bulkhead just about and to the right of the clutch resivoir (viewed from the front)

Edit.... Between the coolant resivoir and air box

Last edited by rustandoil on 18th Mar 2025 8:54pm. Edited 1 time in total

18th Mar 2025 8:34pm

Irish rover

Member Since: 25 Feb 2025
Location: Leinster
Posts: 9

I know it was fitted, but I will check the connections,but it's still a problem to check with the engine light issue, I will check the earth's tomorrow 🤞

18th Mar 2025 8:53pm

DefenderCan

Member Since: 25 Nov 2023
Location: Canada
Posts: 33

Check Inertia Switch, located left of the air filter housing or center of the bulkhead in the engine bay

Inertia Switch senses accidents and will cut off fuel. The red in the coolant times no pump sound is all i need to read.

21st Sep 2025 5:56am

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