406oc.co.uk

Hi all

This is a little follow up from my P0230 post.

I decided to take a little break from messing about with the car to try an give my brain time to recharge....it didnt work though!!!!
As the car still wont start i decided to take the fuel filter off and check all was good in there....I dont think it is
I found what looks like silver metal filings in the housing. I am sure I have read somewhere in one of my extensive forum stalking searches
that metal filings in filter housing means the high pressure pump has failed???? Can anyone please advise on this?

Oh crap Low pressure pump surely?

Link to your original thread - viewtopic.php?f=1&t=19074&p=189291#p189291

If it was from the HP the filings would have had to make their way backwards against the fuel flow. Looks like you'll have to replace it, clean your fuel lines out and take the filter bowl off the car for a good clean (you don't want any of that to get to the HP pump).

ive seen a couple of Hdi s
that have have Metal particles in the fuel filter housing,

The Xsara ihad was one of them,
there was no running problems with it,

couid this be caused by someone in the past running out of fuel ?

Coupled with the issues in his other thread I reckon the lift pump is choice.

Thanks for your comments guys.

So even though the low pressure pump (the one in the tank) seems to be pumping, it could still be the cause of all my problems?

Don't mean to sound dim, but what is the best way to clean the fuel lines out??
I will try and source another lp fuel pump tomorrow, my local scap yard had shelves of them. Just hope he has another 406.

I wouldn't know if anyone in the past had run out of fuel? I like to keep to a quarter of a tank minimum if poss.

Steve, do you mean that I will have to replace the hp pump too or just et away with the one in the tank?

We're all thinking failing lift pump.

You will probably get away with removing & cleaning out the filter bowl thoroughly, changing the lift pump, then, (I'm guessing here), purge the fuel line by pumping a litre or two from tank to a clean container to check for any further impurities. You can always recover the fuel by straining it through say some kitchen towel to catch any nasties.

IIRC the HP pump has a very fine gauze strainer on the inlet for just this reason.

Thanks doggy.

I will try and source a lift pump tomorrow and let you guys know how I get on.

The beers are on me if this pug starts

I also have metal bits in my fuel filter housing and have no problems. I seem to remember having them in my 2.1TD XUD engine as well - again, with no problems.

Ah, looks like it's agreed then - it means squat

Captain Jack wrote:I also have metal bits in my fuel filter housing and have no problems. I seem to remember having them in my 2.1TD XUD engine as well - again, with no problems.

Me too when I changed the fuel filter
Got a bit paranoid about it and as one of the pipes on top had been repaired, changed the whole filter housing.
Had no issues relating to fuelling

Usually when we hear about swarf in the filter it follows the words "my fuel pump died and..." so we've always assumed the swarf is a product of a failed pump, now it's looking like that's meaningless because the one doesn't actually follow the other. I'd love to know where it's coming from (anyone got an old pump they'd care to take a hammer to?)

Looks like I'm back to the drawing board then
I will still see if I can source a cheap pump today just to rule it out completely.
I was having a look at the loom last night and I unravelled the tape around it and found that 2 separate sections appear to have been cut and connected together? One sidebhas four wires one side going to two the other?
Does anyone know if this is normal or is it an attempted repair by a previous owner?

Will get a couple of once this bloody rain stops.

Got the good wife to hold a brolly for me while i got these pics.

Could it be that the fuel pump is not generating enough pressure and that is why the car will not start, or possible loom problems???

The wiring will have some splices, these will probably be crimped rather than soldered. I'm afraid without wire numbers I wouldn't know where to start looking

If the pump runs for a few seconds and then cuts out then I'd think it was putting out enough pressure (this is without trying to start it), if it ran for a very long time indeed then I'd think it wasn't up to the job.