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406hdi 110bhp - Intermittent Starting
#1
Hello folks,

My uncle has a 406hdi 110 that will sometimes start and other times wont, both when hot or cold.
The car will turn over fine so it isn't a battery issue.

Anyone any idea what could possibly be stopping it starting?

Thanks,
Anton
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#2
Could be lots of stuff but I'd check fuel pump first.

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#3
(25-04-2016, 01:39 PM)jjwilde69 Wrote: Could be lots of stuff but I'd check fuel pump first.

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Low pressure pump or high pressure pump?
How do you test the HP pump?
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#4
Low pressure pump, immobiliser, cam/crank synchronisation... Check out the thread in my sig, will get you started at least. Ideally you need to see some live diagnostics data, at the very least get the codes read.
306 HDi Deathtrap - 130bhp / 220lbft
...UPGRADING...



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#5
The low pressure one you can usually hear it whirrr a few seconds to prime the pump when you turn ignition to on. If you can't hear it then you can pop off the pipe to fuel filter in engine bay and turn key but catch any fuel if it starts pumping out. Could possibly be a clogged fuel filter but most likely low pressure pump. Low pressure easy to change. High pressure one needs cambelt off so hopefully not that one.

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#6
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(25-04-2016, 05:14 PM)Poodle Wrote: Low pressure pump, immobiliser, cam/crank synchronisation... Check out the thread in my sig, will get you started at least. Ideally you need to see some live diagnostics data, at the very least get the codes read.

Copied your post in that thread Poodle and printed it out. Il go through all the points you make and see what I come up with.
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#7
A friend of mine had a diesel C5 with starting probs and it was an extremely dirty fuel filter - it had probably never been changed LOL.
A good starting point maybe ?
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#8
Yeah mine needed changing too when i got it. Easy 10 minute job too. [GRINNING FACE WITH SMILING EYES]

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#9
(26-04-2016, 09:06 AM)maxaret Wrote: A friend of mine had a diesel C5 with starting probs and it was an extremely dirty fuel filter - it had probably never been changed LOL.
A good starting point maybe ?


Il give it a go. It wont do it any harm anyway.
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