[Solved] Renault trafic 1.9 dci 2005 - difficulty starting the engine after a long post

I come back to the matter after a few days. It seemed to me that the soldering of micro switches on the key board had a direct impact on starting the engine. However, it turned out that this was not the reason. Someone suggested that there is probably no pressure in the fuel system and that this is probably the cause. It turned out he was right. I asked if there was an additional fuel pump in front of the injection pump in this car and I received two answers; one that there is a pump in the basket in the tank, and the other that there is a cylindrical pump between the tank and the injection pump. When I got to work, it turned out that there is no pump in the tank, neither between the tank and the injection pump. I came up with the idea to use the bulb at the air filter housing to increase the fuel pressure during startup but I need a helper for this task I turn the key, and the colleague - the helper pumps and then the engine starts and does not go off when the colleague stops pumping. My question; what to do so that I don't have to use a friend's help? What could be the reason? However, it can add a pump although the manufacturer did not use it in this model? 1.9 DCI, Renault trafic - a short tinplate from 2005

It is worth checking the tightness of the fuel line from the tank to the pump (especially around the pump).

If a colleague would look at a certain auction site, e.g. all ... he would see that fuel pumps for your car are being sold. So it seems to me that my colleague did not check thoroughly. They describe such numbers 0580453496, 8200084183, 8200071331. (Eg auction 6736866405) Maybe my colleague will look at how many wires go to the tank because in my opinion two thick and two (three) thin ones will go. I could be wrong, of course.

I took out the tank, unscrewed the cap, took the basket out of the tank. two fuel lines are connected to the bin, and when it comes to electric ones, there are only two thin electric lines to handle the measurement of the amount of fuel in the tank and that's it. it's a pity that I didn't take photos, there would be no doubt then

Added after 6 [minutes]:

I checked the tightness. Every time, when I start with the help of a colleague, when I press the gas pedal it is as if choked and only after a while there is a sudden increase in revs, but when I take my foot off the gas pedal for a while, it all repeats

Added after 6 [minutes]:

... and going back to the topic of the pump in the tank, it was also - like a colleague - I was convinced that the pump in the tank is present and I even bought such a pump. I was very saddened that she was not there and that the problem with starting the car would not disappear.

Added after 4 [minutes]:

I'm afraid it's the head pump that goes out and doesn't hold the pressure

The pump did not necessarily sit down. There is a non-return valve in the bulb that you pump the fuel into. Personally, I would replace the pear or disconnect (together with plastic hoses and connectors) and put a non-return valve in this place. If it would have an effect, it would be a new game. Try as I write because you are able to do it yourself and without much cost.

You have a leak. Replacement pump PLN 200 powered by ignition or replacement of wires and pears. The question is what's faster

andrzej20001 wrote:

Feed-through pump

what???

https://www.google.pl/search?q=pompa+paliwa+d...qUxc7SAhVJjCwKHbChCxMQsAQILg&biw=1280&bih=649
that this and that it should be on the right longitudinal member.

As I thought you have no idea.
There is no pump in this model!

there is no pump other than a high pressure pump

Added after 4 [minutes]:

I will try on Monday to do what Tomasz proposed - a check with a check valve.

Gentlemen, there is a check valve in the pear but I'm not sure if it matters if the car smokes and is not airy. I will write why I think so. I now had a 2.0 DCI 115KM trafica with a damaged pear valve. It could not be bled. Pear non stop soft. Fuel filter new. As I took off, the fuel line did not pump fuel at all. When I sucked in fuel from the hose (behind the pear) it went without any resistance. I filled the wires with the syringe, pinned them together, and started the car with a pickup. It came 5 minutes, he vented himself and then the problem did not come back, whether after an hour or two days or a week. There was no problem with firing. The fuel was not retreating.
PS. As for the additional fuel pump. I have not encountered such at least in cars equipped with a pear. I rummaged at several Masters / Trafice 2.5 DCI (120i146KM) 2.0DCI.

do such cars have something like suction? maybe this element is failing, because as I wrote before; until the engine heats up or I don't hold the accelerator pedal for about 1/4, then the car has no power at all, barely the wheels roll flat, but when I get the temperature or when I gradually spin it, it suddenly starts, as if shot from sling

jercyr wrote:

because as I wrote earlier; until the engine heats up or I don't hold the accelerator pedal for 1/4, the car has no power at all, the wheels barely roll flat,

I'm a little lost now. Does your hit have a firing problem or does it fire normally and has no power?

does not fire normally. I wrote that I need a helper to fire

Fuel pressure sensor on the rail, pump pressure regulator OK?
In this car, as there is any leak in the fuel system on the return (from the rail or injection) it will be a problem with firing.
At the high pressure pump is a pre-pump (size like a matchbox) likes to twist the axle.

will you have to pull out the entire pump to check it?

will it not be a defect of one of the temperature sensors, which means that the suction will not start?

I was driving today and it turned out that I could not exceed 3800 revolutions. when I apply the accelerator at this value it seems to be choking and I can't do any more

jercyr - did you solve the problem ??? I have a megane II with 2.0 dci engine and it also turns to 3800 revolutions and I have problems with morning start. It takes a long time to make him smoke.

I scrapped the car