Water in my 1996 406 pls help!

[lozz]

Thanks Lozz, the car used to get fuel to the engine with only one litre in it,
is it because it already had suction ? But is that suction not broken once the tank cap is opened up ?
.............................................................................................................................

It dosent work of suction,
what the pump does is fill that bucket up inside the pump first,then it forces it right along the length of the fuel line right upto
the fuel rail on the engine, the injectors then fires the fuel into the cylinders under preasure not suction.

[lozz]

this isn't apetrol one,
but it might give you an idea what iwas going on about with Bucket

see link, http://www.youtube.com/watch?v=6pQXNKE7810

note how much fuel they hold, and if car isn't on level ground couid it actualy fill and prime with limited fuel,

[406owner2]

Thanks Lozz i'm on low bandwidth here but i think i get what you are saying, when you say bucket, it is the container inside the fuel pump itself yes ?

But the thing is, why then the car would always start up knowing that it only had 1 liter of fuel in the tank, (i ran out of fuel a couple times and only put in one liter and what i do then is put the ign on for 10 seconds, thereafter the car would start.)

Also why is there no fuel/water coming from the pipes below the the petrol tank at the filter ?

Is it because i need to suck on the pipe while the pump is on ?

(sorry also you asked about the pump) yes i got it working, it was on for 20 seconds,
no fuel from underneath the car came out (filter pipes disconnected)

i did not suck on the pipes however.. should i do that with the pump running and see, or put a pipe on the fuel pump itself to a draining container if i can find a suitable pipe ?

[lozz]

try putting a pipe on the fuel pump it self,
there shouid be arrows to indicate which way it flows. (return/out)

you mayneed new jubilee clip/s afterwards tho some fall apart when removed.

(if nothing comes out, try plugging the return so it just pumps one way')

[lozz]

just a thought,

idont think the ecu will let the pump run continusly.
so it will be loads of ign on/off to get it to pump out

[steve_earwig]

Not if he bridges 9 & 11 but it would probably bed bad t run the pump for any length of time if there's no fuel going through it (overheat/kill the bearings)

[406owner2]

try putting a pipe on the fuel pump it self,
there should be arrows to indicate which way it flows. (return/out)

you may need new jubilee clip/s afterwards tho some fall apart when removed.

(if nothing comes out, try plugging the return so it just pumps one way')

ok thanks, i think what i'll do is, shops are all closed here on a sunday, so can only buy some "fish" tank pipe from the hardware store tomorrow, then i will do as you say. thanks.

What i can try now i guess is force on the relay to get the pump going, and try and suck on those pipes below the tank at the filter.

I'm thinking of making something like this, how effective it would be i have no idea, and i think one is just suppose to press on the bottle i guess, looks simple enough ?

http://www.instructables.com/id/How-to- ... hing-in-y/

[406owner2]

just a thought,

idont think the ecu will let the pump run continusly.
so it will be loads of ign on/off to get it to pump out

Ok the thing is here, the ign does not run the pump unless i forcefully push down that relay, so fabricating something to put in there to get the pump running,

However because of what you have just said, should i say run it 20 seconds at a time disengage the manually pushed down relay,rest for a minute and then go 20 seconds again...repeat...repeat. ?

[406owner2]

Not if he bridges 9 & 11 but it would probably bed bad t run the pump for any length of time if there's no fuel going through it (overheat/kill the bearings)

i assume when i forcefully closed the relay i bridged (9&11) ? had the pump on for 20 seconds earlier on.

One thing to add:

I did hear a "grrrr" sound for 2 seconds or so in the engine compartment, it was either when ignition was 1st engaged, or when i pressed down the second relay, perhaps that sound is the injectors without any fuel in them to inject, hence the reason it's a "grrrr" sound and not the slightly higher pitched sound with fuel being injected ? (like i used to hear when switching on the ignition)

[lozz]

disconnect main thick pipe from tank and stick hose pipe down it.

or if you've got garage nearby ask if theyd kindly lend you a syphon pump,

you might be at it all year otherwise,

[406owner2]

Thanks Lozz, i'll go ask them. While i do, do you know what these pipes are for and what they do ?

they are connected to the front of the fuel tank.(it seems?) Perhaps i could take them off and drain directly from the tank ?

[406owner2]

last post updated.

[406owner2]

Perhaps what the manual meant is pumping it out from the pump itself, those pipes only seem to go be connected to the fuel filter line and the other one i assume goes to the pump...

i got some pipe, not feeling too good about pumping water through the pump but i guess i need to see if it works anyway so will go do that.

[406owner2]

Ok the fuel pump was letting fuel out the top exiting outlet, when i removed the pipe, i'm thinking that then the fuel pump itself does have petrol inside, i have not switched it on yet. The outlet pipe is thicker than the inlet pipe if i'm reading it correctly (outgoing arrow goes to engine ? and ingoing arrow comes from the fuel pump ? (strange why it did not pump anything out at the filter pipes ?)

need to now go buy thicker guage pipe.

[406owner2]

Ok had the pump on, and i siphoned on the pipe coming from the pump outlet if it's the correct one i siphoned on ?

the thicker outlet with the arrow pointing outwards ?

if i did siphon on the right side, then it's as if something is clogging it ?

it spurted out a few drops one or 2 times, thereafter nothing. (complete state of vacuum)

Correct me if i'm wrong, if the pump is working or not clogged up, if there is no fuel in the pump, i should be sucking air right ?

At the moment, it's as if there is a complete vacuum in the pipe when i suck on it, i'm not sucking air or petrol.

OR

is the tank in a state of complete vacuum ?

Can i take out the pump and see if i could i unclog it if it is clogged ?