Peugeot 407 2.0 HDI - Poor Acceleration, No Power, P2562 Error, Vacuum System & Unsealed Tube

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#1 16747389 09 Oct 2017 19:26

Anonymous Anonymous

Anonymous

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Post #1
16747389 09 Oct 2017 19:26

Hello,

What is the unsealed negative pressure tube from the picture? Is he just hanging loose there?

I will add that I am struggling with the problem of slow acceleration. Peugeot Planet shows error P2562. The electrovalve and throttle are okay. Looking for a problem in the vacuum system?

Edit: // I can not find a vacuum battery. It seems to me that it should be at the front under the pacemaker? Has anyone been able to convert it and do something like a pass?
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#2 16851689 27 Nov 2017 00:40

lukas497 lukas497

Level 1

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Post #2
16851689 27 Nov 2017 00:40

Buddy, you've dealt with this serpentine? This hose is not plugged and should be hooked under this double throttle. As for the slow acceleration, if you plug the above-mentioned hose and there is no visible effect, check all the underpressures and especially the short rubber connectors. For me, a few were cracked and because of this there was no vacuum to the turbo and other difereli, and some of them are in the 2.0 hdi 136ps. Let me know how you can rectify the fault. greetings
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#3 16911023 24 Dec 2017 13:42

Anonymous Anonymous

Anonymous

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Post #3
16911023 24 Dec 2017 13:42

Yes, I've dealt with this problem. The unplated hose turned out to be unplugged from the vacuum accumulator. Unfortunately, after replacing the vacuum accumulator, it was still necessary to replace all the wires that go in the system because they were stiff. Subject resolved to close.
#4 19928431 13 Mar 2022 11:10

nicolka1999 nicolka1999

Level 2

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Post #4
19928431 13 Mar 2022 11:10

Hello
I would like to return to the topic. I replaced the starter on my Peugeot 407 2.0 HDi. Everything works nicely, only it has lost its power. There were approx.
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#5 19928458 13 Mar 2022 11:23

beryas beryas

Level 31

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Post #5
19928458 13 Mar 2022 11:23

grab the vacuum pump and check the vacuum lines one by one, in 407 there were probably 3 solenoid valves
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#6 19928779 13 Mar 2022 14:10

nicolka1999 nicolka1999

Level 2

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Post #6
19928779 13 Mar 2022 14:10

So the wires can be to blame or the solenoids?
#7 19928831 13 Mar 2022 14:42

janosiksik janosiksik

Level 27

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Post #7
19928831 13 Mar 2022 14:42

Both. look for where you were doing and what you unbuttoned. All you need is a badly connected electric cube or a too much pulled vacuum cable.
#8 19929750 13 Mar 2022 21:51

beryas beryas

Level 31

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Post #8
19929750 13 Mar 2022 21:51

there were probably plastic hoses with rubber connectors, after moving / unfastening the rubber could break and the vacuum could escape, the plastic tube could also shoot and a bit further, usually in the least comfortable place.
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Topic summary

The discussion revolves around a Peugeot 407 2.0 HDI experiencing poor acceleration and a P2562 error code. The main concern is an unsealed negative pressure tube, which is suspected to be disconnected from the vacuum accumulator. Users suggest checking all vacuum lines and solenoid valves, as issues with cracked rubber connectors or stiff wires can lead to vacuum loss affecting turbo performance. Solutions include replacing the vacuum accumulator and inspecting all related wiring and connections to ensure proper functionality.
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Peugeot 407 2.0 HDI - Poor Acceleration, No Power, P2562 Error, Vacuum System & Unsealed Tube

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