intermittant engine cut out
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- 1.8 16v
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intermittant engine cut out
Hello all you experts from a newboy..........I have a 51 plate 406 110 diesel estate with 87K on the clock. Twice today it has cut out while I'm driving along, however, it restarts and runs perfectly (serviced in June). I searched your previous posts to discover the likely cause could be the 15 pin brown relay in the ECU box...........only trouble is............I don't have one in the box, what's me next step forward?
Re: intermittant engine cut out
Have you had a diagnostic test? That would hopefully (amongst other complete jibberish they throw out) maybe put out a useful code.
407 GT multimedia 

Re: intermittant engine cut out
Next time it cuts out check the in tank fuel pump , turn the ignition on
but dont start the car and listen to hear a buzzing noise at the rear of car
if you can't then pump not working .
but dont start the car and listen to hear a buzzing noise at the rear of car
if you can't then pump not working .
.. ooh are those drugs for me Matron
- Welly
- The moderator formally known as Welton
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Re: intermittant engine cut out
Yes, sounds like the in-tank fuel pump or maybe the crank position sensor - the pump's the favourite.
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2013 Renner Twingo - donkey work
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- 1.8 16v
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Re: intermittant engine cut out
Where will I find the diagnostic plug?.........I have a friend with a code reading device, but we have no idea where the plug is 

- DiscoPol
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Re: intermittant engine cut out
Im with the
good luck
Welly wrote:sounds like the in-tank fuel pump
it would be the first check for me, and an easy enough fix, even i managed mine on my own.puggy wrote:check the in tank fuel pump
good luck

Welly wrote:Well butter my arse!
- Doggy
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Re: intermittant engine cut out
Hi & Welcome
Pump's the usual suspect....

Pump's the usual suspect....
Behind a pop-out cover next to the headlight height adjusting control - bad news is almost nothing bar Pug's own system talks to them properlybigknickers wrote:Where will I find the diagnostic plug?.........I have a friend with a code reading device, but we have no idea where the plug is
2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
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- 1.8 16v
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Re: intermittant engine cut out
The car is running perfect at the moment, but I know it'll do it again soon, thanks lads, the in tank pump is at the top of me list then, Disco, sorry to be a plank, but where is the headlight height adjuster?.........I assume it's in the engine bay behind the headlight? I also wanted to get a diagram of the fusebox layout seeing as the one in the Haynes manual is wrong, any idea where I could get one?
- DiscoPol
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Re: intermittant engine cut out
it was Doggy who told you about that bit.bigknickers wrote:Disco, sorry to be a plank, but where is the headlight height adjuster?
I think he is on about the bit next to the switch IN the car its a bit of plastic trim that pops off with a little persuasion from a small poky device i reckon, but i could be wrong i never had mine off to look and now i drive something else so cant even check for you Im sure doggy will be along soon and put us right.

Welly wrote:Well butter my arse!
- Doggy
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Re: intermittant engine cut out
Ah, the power of Avatars!
As Disco says, the headlight height adjuster should be just to then right of the steering column, ( by your right knee).

As Disco says, the headlight height adjuster should be just to then right of the steering column, ( by your right knee).
2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
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- 1.8 16v
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- Joined: Mon Oct 25, 2010 6:09 pm
Re: intermittant engine cut out
Oops, silly me, this computer lark aint easy is it? The good lord has now made the problem much easier, cos the fuel gauge now shows a permanently full tank, so I'll bung in a new fuel tank pump which hopefully will fix two faults with one part
from reading previous posts, it looks like I'm changing the pump at an early stage of it's failure, which should avoid a trail of pump debris flowing into the lines and mucking up other parts!

- Welly
- The moderator formally known as Welton
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Re: intermittant engine cut out
Ah, it's trying to tell you something
To be fair I don't think anyone on here has ever known of any 'bits' breaking away from the pump.......

To be fair I don't think anyone on here has ever known of any 'bits' breaking away from the pump.......
Cars in my care:
2021 Kia Spottage 1.6 Pez Turbo Dual Clutch Gearbox Trickery
2013 Renner Twingo - donkey work
2021 Kia Spottage 1.6 Pez Turbo Dual Clutch Gearbox Trickery
2013 Renner Twingo - donkey work