Peugeot 407 2.0 HDI: Vacuum Pump Replacement, Brake Support, Smoking Exhaust & Flow Meter Error

Hello,
I had a problem with the vacuum pump recently, because after starting the car after a long stop, it took a while (one-two minutes) to brake.
I replaced the vacuum pump (due to the current weather and lack of time during the day) I drove the car to the mechanic.
The pump has been exchanged for efficient use. The problem with brake support disappeared, but already on the way from the mechanic I noticed the problem (smoking exhaust from the exhaust stench like from an old tractor). After 10 km, it stopped. After returning, a mistake appeared. After connecting to the computer it turned out that there is a flow meter error. The specialist mechanic has twisted but to put it neatly there was no motivation. It turned out that the plug is not plugged into the flow meter and the air hose from the filter is not twisted with bands at all.
There is one more problem, I hear now when accelerating (on a loaded engine) hissing. Rather, it is related to the work of turbo (I look so much like hearing) but never before there were such sounds. Hissing is sometimes loud, sometimes quiet, sometimes disappears completely.
I am not able to listen to it under the hood, because I will not be able to go there as soon as I come in ...
And at the stop, hissing is not audible (the engine is not loaded).
This has also occurred hissing several times when the engine is braked at a certain higher rpm range.
In addition, the engine pulls, there are no errors, the intake hose hardens as it cools.
But if it lost its flexibility. He likes to tame at lower revolutions.

see the connection of a turbine hose
As for me, it is either a snake bursting out of the turba or a hose clamp
As the air from the turbine blows harder - it hisses

But it huffs in the same situations again and again and for some time at any time.
All hoses that are available from outside have been checked and are tight.
However, you can not see a large part of them that runs behind and under the engine, in current weather I do not have them to check, because my channel is in the field in a bit of a bad place.
I will have to arrange a lift somewhere.

However, I noticed that the plastic hose section connected to the compressor

number 3 on the shutter, it moves like a hand jerk. This section runs next to the vacuum pump, perhaps the mechanic has damaged it. I can not see the connection to the turbine, is there still some flexible part, but this should be stiff.

He could wrongly push the seal of this tube and let it through.
It should be stiff.
Disassemble everything as soon as possible and check before you stand in the way or eat for complaints.

Only why would he take this pipe ...

drzasiek wrote:

Only why would he take this pipe ...

I do not know, maybe the soup was too salty
Or maybe it bent and broke because it rattled in this area, a rattle, a hammer and a cup of coffee ...
After a professional who did not twist the simple things, you can expect everything ...
And if you whine about something, go for a complaint or start up and check if everything is ok
greetings

Anything can be hissing - both underpressure - even through a leaky servo, wires to it or "shafts" for solenoid valves controlling the work of turbine, EVAP or heating, the same can hiss the overpressure, escaping from the leaky intake - the section between the turbine itself and the suction collector - hoses, IC. It is impossible to define through the forum, without physically touching all the elements.

Only as I said, at the stop does not hiss so the touching can not give. Wires that I am able to feel, I have grasped. But I can not put the engine down on the stand to make hissing manifest.

Added after 3 [minutes]:

robokop wrote:

Anything can be hissing - both underpressure - even through a leaky servo, wires to it or "shafts" for solenoid valves controlling the work of turbine, EVAP or heating, the same can hiss the overpressure, escaping from the leaky intake - the section between the turbine itself and the suction collector - hoses, IC. It is impossible to define through the forum, without physically touching all the elements.

The complaint does not make sense to go because the salesperson does not give receipts, so he will treat it as another repair and will collect money again and you do not know what this time will forget to turn.
Unfortunately, I do not have any specialists to choose from in a reasonable area, all with various problems, I have visited various cars and, unfortunately, none of them did their work so that I would like to take the car to it again.

drzasiek wrote:

Unfortunately, none of them did their job so that I would like to take the car to it again.

So, what to do - as I wrote above. Everyone can hiss.

I have some observation.
Pigs occurred during both acceleration and engine braking. He calmed down for a moment of passing the engine for a moment when it was not loaded.
I also wrote earlier that it seems to me that the engine lost its elasticity. Namely, I had the impression that she sometimes likes to jerk.
Today, during his return from work, he struggled a few times more. I stopped and pulled out the EGR plug. In the further part of the tour, the whistle stopped, jerking did not appear (but it was about 2 km from the house) so I do not know if it's a coincidence or something related to EGR. Natomiat, after disconnecting EGR, I expected an error, but nothing appeared.

Or maybe somewhere a broken tube connecting EGR with an exhalation?

drzasiek wrote:

during acceleration and engine braking

It looks like the engine is lying freely on the cushions, it does not make any noise, and when it is stressed it touches it.
Pull in manually and try to move - press the motor on the cushions and you can hear it then.
Rather, the blow will be between the vibrating part or motor and the rigid body indicates the connection of the tube from the intelumer.

But notice that when I unhooked EGR it stopped to wheeze ...
Ie. I will check tomorrow on a longer route because today it could have been a coincidence (because there were moments when it did not roar). Though the last few days seemed to wheeze every time.

However, he hisses. However, it does not interrupt and is much more spontaneous after EGR disconnection. There was also an expected error from EGR. On Saturday, I will try to clean the EGR.
However, if the cleaning did not do anything, I can blind it (without disconnecting) so that the controller does not report a fault or detect a lack of flue gas passage on the intake and report an error?

As for hissing, I will try somehow to get into these snakes (although it will not be easy) because it pisses me off and worries me.

drzasiek wrote:

so that the controller does not report an error or detect a lack of flue gas passage on the intake and report an error?

So you have to intervene in the controller so that the ecu can precisely adjust the fuel dose.

drzasiek wrote:

I will try somehow to get to these snakes

A lot is already written about this, now it's time to turn the sleeves and check in the car

Not a problem with the sleeves but with access between the engine and the wall. You can enter the radiator and squat before the engine, and behind the engine (where there are many elements for the service) you can neither push your hand.
But at the weekend, he will try something.

There was nothing to be heard. With the engine running, it does not go to locate where the swist comes from. However, I decided to clean up egr. After 2 hours of breaking the cancer and fingers to unscrew it, I did. Fixing the egr to the engine with up to 3 bolts (only to not hang on the flue gas cooler) and this third screw screwed down is the world championship. I would let those guests who drew it, order it to unscrew and then release them. In principle, dismounting egr requires removing the motor.
Egr itself was terribly dirty and the pipe connecting egr with the inflow practically no longer had a flashover. But dismantling egr, I noticed pechnoeta odme. In addition, after dismounting egr it was possible to insert the engine and tighten this plastic intake to the turbine. I heard an elegant boom and the pipe stopped moving. As you can see it is pressed. The car is now working much better and, most importantly, does not bleed. He managed to fix what mechanic popsul.