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Car turns over but will not start

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wolfy

Member Since: 20 Apr 2010
Location: Vire
Posts: 19

2005 Discovery 3 TDV6 HSE Auto Tonga Green

Car turns over but will not start

Hello,

My 2004 Disco 3 has an intermittent issue. Very occasionally it just will not start. This is normally when the engine is hot, locked and left for say half an hour.

Usually after a period of say 2 hours it starts again. Frustrating as I never know when it’s going to happen. Could this be a heat sensor? Any pointers will be very much appreciated as I just want to get it fixed.

Thanks for taking the time to read this.....

21st May 2018 7:18 am

Gareth
Site Moderator

Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26779

Check for fuel pressure from the in tank pump first. When you turn the ignition on you should hear a faint whirr.

21st May 2018 7:34 am

Hardware

Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 13037

2011 Discovery 4 3.0 SDV6 XS Auto Sumatra Black

I had a Fiat do this years ago … diaphragm in fuel pump had gone slightly porous. Once the engine was at temp, fuel was warmer and expanded so there was more back pressure and the pump wouldn't push fuel.

21st May 2018 7:43 am

Henda

Member Since: 05 May 2016
Location: Gateshead
Posts: 473

2005 Discovery 3 TDV6 Base 7 Seat Manual Siberian Silver

Mine in hindsight started the same way would spin like anything but not fire only now and again,ended up being a rather expensive fuel pump following a breakdown and recovery
Listen for the pump spinning when you put the ignition on or open the Schroeder valve ( think that's what it's called ) at the back of the engine same thing ignition on depress valve you should get a squirt of fuel that should start you off , maybe a blocked fuel filter or water

All transmission oil replaced
3 flash indicators
All timing belts changed
EPB serviced
De cat fitted
Wind deflectors
De-tango done
Tints fitted
Egr blanked

21st May 2018 12:45 pm

wolfy

Member Since: 20 Apr 2010
Location: Vire
Posts: 19

Many thanks for your suggestions chaps, I’ll get on to checking these things out. I’m guessing that a LR computer is unlikely to diagnose the fuel pump if it’s that?

21st May 2018 8:36 pm

Henda

Member Since: 05 May 2016
Location: Gateshead
Posts: 473

There is a post / guide on here about the lpfs

All transmission oil replaced
3 flash indicators
All timing belts changed
EPB serviced
De cat fitted
Wind deflectors
De-tango done
Tints fitted
Egr blanked

22nd May 2018 7:08 am

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