Water in my 1996 406 pls help!

[406owner2]

Thanks for the tip Lozz, i will be careful with these connectors so glad you mentioned it, here's an update,
I just couldn't sleep and went out just now 12:50 in the morning here to fiddle with it.

To my suprize it unclipped relatively easy, however not much fuel/water coming out, only a littler fuel/water (about 50ml) from the pipes (i unclipped both pipes) the fuel in the filter came out though, but that's not much either.

Now am i doing something wrong, do i need to sip on the pipes, or is there as sort of suction effect keeping the fuel/water in the tank and pipes ? Should i open the petrol cap ? Or do i need to put on the ignition for the fuel pump to run ? the car has only 1.5 litres in it (400ml water and 1 litre fuel)

(sorry... i see you mention to put on the ignition on, on one of your previous posts, let me go try that quick.....!)

[406owner2]

ok i tried switching on the ignition up to the point just before start for about 2 minutes so the fuel pump runs, but nothing coming out of the pipes, i tried opening the petrol cap as well, still nothing ? both pipes still disconnected from fuel filter. Any idea why nothing's coming out and what i could try and do next ?

If the fuel pump is working, is it suppose to push out the 1.4 litres inside the tank with the pipes loose ?
The car usually starts with only 1 litre of fuel in the tank.

[lozz]

Right ok,

time to try something else.

to start with, put those pipes back on the Metal filter.

.................................................................
try going in from top of fuel tank,

so get them rivets off the Metal cover,

so you can get access to the fuel lift pump and float unit,

don't remove the locking ring, leave it in place,.

you shouid see two pipes one will be a fuel in and the other will be a return pipe.

(open all the windows in the car! )


back to these two pipes, you need to make a mental picture of which way they are so you will know which way they go back on
take a photo with your phone /camera or get some masking tape mark up with L or R (left or right)

remove the pipes these shouid be push fits, (clip on)

now get a piece of pipe you may have to scavenge round for some,
cut the pipe in two and place a length on each port,

put both pipes into a container and go back to your ignition key method to prime it out,

Make sure you have windows open in car or it will stink for weeks later,you will also end up with nasty headache too,

peugeot 406 lift pump.jpg

[lozz]

Rember the fuel pump will only run for a few seconds,!
so its not going to pump it all out in one go, it will most probably be around a pint at a time as a guess,

you will have to do Several turns of the ignition to get it to pump the whole lot out,

[406owner2]

Thanks Lozz.
Time to get to work then. Should it pump all of it out ?, i guess the way a fuel system is designed (or at least in my mind should be designed) to take petrol from the lowest part of the tank so it empties it completely ?

Any idea why fuel is not coming out from the filter lines i've loosened ?

[406owner2]

ok i undid the rivets as in picture below, i guess i need to remove the pipe at the black arrow ?

i cannot exactly see how to remove the whole pump and lift it, how do you get the fixture loose or is it ok to just leave it where it is and put a draining pipe on where i will be taking of the pipe at the black arrow.

The plate covered in dust as shown in the blue encircled area seems to work by having to turn it in an anti clockwise direction to get it loose but there's no space to grip it so one can turn it.

Also, the silver clamps, how do i loosen them, they seem "fixed" should i break them, i can if i have to.

if you zoom into the picture you can see more clearly.

what kind of pipe do i need to get at the hardware store that would fit on the pump outlet ?

[steve_earwig]

The clamps are crimped, they can be straightened out & recrimped but the results aren't likely to be satisfactory, so you'd need to replace them with jubilees/worm drive clips.

I've no experience with the locking ring on a D8 but on a D9 it's almost impossible to release it and put it back straight. In the long run it's far easier to drop the tank...

I can't help thinking that there must be more convenient places to get to the fuel system, ideally under the bonnet as you really need to flush the system all the way through.

Fuel filter bin.

[406owner2]

Thanks Steve...

I guess when you say worm clamps it's like a zip tie but the metal version you often can find at a place selling plumbing goods ?

I doubt i'll be able to lift the pump from what i see, however would it be fine if i put on a drainpipe just on the outflow of the pump as indicated on the black arrow of the picture when taking out the black pipe already connected to it ?

i did disconnect the pipes below the tank underneath the car from the fuel filter at the rear, however no fuel came out there, so if no fuel came out there, why would there be fuel coming out from any pipe at the engine itself, except fuel maybe stuck in the engine ?

[jasper5]

When you tried to get fuel out of the filter and pipes did you have the ignition on and turn the engine over?

Fuel will only come out if the fuel pump is working.

[406owner2]

Are these the 2 pipes coming from the petrol tank ? I found two similar pipes underneath the car going to the tank. Jasper pls see my next post after this one.

What about the second pic, any pipes there that looks like the fuel line ?

[406owner2]

When you tried to get fuel out of the filter and pipes did you have the ignition on and turn the engine over?

Fuel will only come out if the fuel pump is working.

Hi Jasper

Please bare with my ignorance, if i put the ignition into the position just before starting the car, does that not activate the pump ? I was told to put it into that position to get the fuel "flowing" by someone previously.

And no i did not fully turn over the ignition, do i need to fully turn over the ignition cranking the engine ?

[406owner2]

... ?

[406owner2]

Is the fuel pump at the back suppose to make a noise or vibrate slightly when taking off the cover, or would the noise only be heard from under the tank ?

[lozz]

the pump is supposed to make a Whirrring noise when you first put ignition on. (position where batterylight and other lights come on dash/clocks)

sorry none of my sugestions have worked, if you didn't mention you need car for work iwouidnt of made these coment to start with.
only trying to help iknow what its like relying on a car to get you to work,

becareful mate,

[lozz]

I can't help thinking that there must be more convenient places to get to the fuel system, ideally under the bonnet as you really need to flush the system all the way through.

Fuel filter bin.[/quote]

only place icouid think of was fuel rail,
but as jasper5 mentioned this might be rather awkward getting access too,

hence the sugestions of other method's

good point tho,