Thread: Starting issue

Originally Posted by getLuke

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My assumption now is the pump is only working intermittently. I expect I will see power to the pump, but the pump failing.

We shall soon see!

I would check as per Sierraferys' advice first. You'll be surprised on LR electrics and how intermittent elec faults occur... you know how rocket and astro scientists talk of multi dimensions and parallel universe theories ... it's primarily due to engineering principles at LR, and that if an easy way has been found to achieve something(mechanical, electrical, etc) LR used those newly discovered methods in a parallel universe and so to us they appear backward/idiotic/moronic/stupid/why!!/etc.

Intermittency of earth connections are a likely cause .. remember that it not only needs a line from power, but it also needs a return path for that power too.

If I were in your situation, I'd have a battery at hand, some jumper leads and remove plug, and hit it with direct power from your at hand battery. Do this a few times to check for pump intermittency.

You could well be right about the pump being the actual issue .. and for sure one day it will. And you have the pump ordered now.
So if you discover that the pump issue may just be a connection issue, you end up prepared for the day when the pump does eventually fail.

Glow plug problems? On the Sunshine coast? I doubt it. I can't recall seeing the glowplug light on my car and I'm in Melbourne.

Originally Posted by getLuke

I wonder if it could be the glow plug(s) failing?

A TD5 will quite happily start without glow plugs.
As others have mentioned, the 3 common failing items: pump, pressure regulator, injector seals (do the injector harness while there).

Originally Posted by AK83

I would check as per Sierraferys' advice first. You'll be surprised on LR electrics and how intermittent elec faults occur... you know how rocket and astro scientists talk of multi dimensions and parallel universe theories ... it's primarily due to engineering principles at LR, and that if an easy way has been found to achieve something(mechanical, electrical, etc) LR used those newly discovered methods in a parallel universe and so to us they appear backward/idiotic/moronic/stupid/why!!/etc.

Intermittency of earth connections are a likely cause .. remember that it not only needs a line from power, but it also needs a return path for that power too.

If I were in your situation, I'd have a battery at hand, some jumper leads and remove plug, and hit it with direct power from your at hand battery. Do this a few times to check for pump intermittency.

You could well be right about the pump being the actual issue .. and for sure one day it will. And you have the pump ordered now.

So if you discover that the pump issue may just be a connection issue, you end up prepared for the day when the pump does eventually fail.

Haha gold! Just like the position of the oil cartridge

You could be right re the earths. I am astounded on how many earths this thing has! I have recently had a weird intermittent issue with the aux circuit (radio, cigar lighter, wiper) where it would not work, then roughly 10 seconds - 10 minutes of driving, it'll all get power and I have those AUX items working.

Could be related. However I have played and checked all the earths I could find and it seems to have restored itself.. for now.

100% will be checking the multi at the pump soon before installing the pump. I will most likely take the pump out and clean all filters in any case whilst I am there.

When you say:

Originally Posted by AK83

I'd have a battery at hand, some jumper leads and remove plug, and hit it with direct power from your at hand battery. Do this a few times to check for pump intermittency.

You mean, have a secondary battery (perhaps the wifes car) and have the leads from the negative to the battery to the earth on the pump and then the positive to the power on the pump? Would I need to fuse this at all?

Also, what is 'WP' when sierraferry states "..if it gets 12V across the WP and black wires.."?

Cheers mate!

Originally Posted by Bohica

Glow plug problems? On the Sunshine coast? I doubt it. I can't recall seeing the glowplug light on my car and I'm in Melbourne.

Good to know. They are fairly cheap so I was considering changing to eliminate in any case.

I do not believe there is a light on the instrument panel for the glow plugs.

Originally Posted by DazzaTD5

A TD5 will quite happily start without glow plugs.
As others have mentioned, the 3 common failing items: pump, pressure regulator, injector seals (do the injector harness while there).

Great to know, thanks legend.

I'll check the wiring to the pump to see if is the signal to the pump, then i'll test the pump like suggested above. If no avail, I'll get my buddy to test the fuel pressure and go from there.

Ive just rebuild the engine with new head and I am sure new seals and washers were replaced (OEM) (15,000km ago) but they still could fail. Hence why I don't really think its the injector seals/washers.

Could be the regulator still!

Thanks mate!

Originally Posted by getLuke

Good to know. They are fairly cheap so I was considering changing to eliminate in any case.

I do not believe there is a light on the instrument panel for the glow plugs.

Yup, the sure is a light for the glow plugs…

Originally Posted by getLuke

Also, what is 'WP' when sierraferry states "..if it gets 12V across the WP and black wires.."?

Cheers mate!

WP = white/purple trace, that's how the circuits are coded in the diagrams

Wire colour codes.jpg

as about glow plugs they are more important than it appears, it's good to have them working even if it's not cold in your area and won't affect the starting too much cos they keep the engine cleaner inside, they have a "post heat" operation too after the engine was started to improve the combustion so less carbon deposits in time.