Power steering pumps keep failing - Peugeot Partner Combi 2005 2.0 HDI

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Power steering pumps keep failing - Peugeot Partner Combi 2005 2.0 HDI

Post by moosemaster »

Had a chap replace a pump for me, it worked for about half an hour after being fitted and then stopped...

Deduced it must be a duff pump, ordered another and fitted it - same thing happened!

These are very basic units, just running off the belt... could it be a bad batch or might there be something else at play?

https://www.carparts4less.co.uk/cp4l/c/ ... 752&000608
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Re: Power steering pumps keep failing - Peugeot Partner Combi 2005 2.0 HDI

Post by Paul-R »

What actually stopped? In what manner did it cease to work?

Did the belt stop turning or did the pulley on the pump jam? Or did both appear to move but the steering was still heavy? Have you checked the fluid level?

Is it possible the steering rack is faulty? Why did you decide the pump was faulty?
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Re: Power steering pumps keep failing - Peugeot Partner Combi 2005 2.0 HDI

Post by GiveMeABreak »

Can’t comment on that supplier nor the parts, they’re obviously not OEM. If you want the proper part number post up or PM your VIN.
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Re: Power steering pumps keep failing - Peugeot Partner Combi 2005 2.0 HDI

Post by moosemaster »

Paul-R wrote: 30 Jul 2018, 11:17 What actually stopped? In what manner did it cease to work?

Did the belt stop turning or did the pulley on the pump jam? Or did both appear to move but the steering was still heavy? Have you checked the fluid level?

Is it possible the steering rack is faulty? Why did you decide the pump was faulty?


Belt running fine each time, he cracked a nut to demonstrate that there was absolutely no fluid coming out/pressure. Fluid levels fine, steering rack fine. Pump working when immediately after being fitted - locked the steering both ways and could hear the pump working. Then it conked out!

VIN (I assume it's the VIN) - VF3**************[VIN obfuscated, can be read by forum staff]*********** -thank you!
Last edited by GiveMeABreak on 31 Jul 2018, 10:26, edited 1 time in total.
Reason: VIN Masked
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Re: Power steering pumps keep failing - Peugeot Partner Combi 2005 2.0 HDI

Post by GiveMeABreak »

Ok, so here’s the part for the original Power Steering pump (4007 LT):
99BFA58F-FBE2-42C0-A838-122A831A5A86.jpeg
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Re: Power steering pumps keep failing - Peugeot Partner Combi 2005 2.0 HDI

Post by moosemaster »

GiveMeABreak wrote: 30 Jul 2018, 22:59 Ok, so here’s the part for the original Power Steering pump (4007 LT):

99BFA58F-FBE2-42C0-A838-122A831A5A86.jpeg

Image


Thank you! Pretty basic eh? Is there anything in the circuit that could cause it to fail..? Or am I just having really bad luck with 2 pumps failing me in a row?
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Re: Power steering pumps keep failing - Peugeot Partner Combi 2005 2.0 HDI

Post by GiveMeABreak »

Only that the original pump costs £412.48 inc VAT from the dealer!

I’m all for getting a decent aftermarket pump, but it has to at least work 🤣. Some of those aftermarket pumps are from £92, and unheard of makes... So assuming you have filled it correctly and bled the system, if the belt is turning but the pump isn’t working then I would have to suggest it is substandard and not up to the job.

Did you source the second one from the same supplier? If so get a refund, don’t use that company again and source a decent make from another supplier of an original is out of the question, or get a used original from a breakers, possibly.

I’ll check bleeding procedures for you shortly....
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Re: Power steering pumps keep failing - Peugeot Partner Combi 2005 2.0 HDI

Post by white exec »

Good bit of choice from Mister Auto (who are Peugeot/PSA owned):
https://www.mister-auto.co.uk/pas-pump/ ... 6_g12.html
Lizarte are often not rated highly (for their hydraulic spheres), but other makes available.
Bolk is Mister Auto's own brand label.
I deal with this company (in Spain) regularly, and their service is good.

BTW, did you check that the pumps you had/have weren't attempting to suck up air or aerated fluid? (Use a length of transparent pipe to check.) Air intake can be caused by a leaky joint (or hose) on the fluid intake side.
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Re: Power steering pumps keep failing - Peugeot Partner Combi 2005 2.0 HDI

Post by GiveMeABreak »

Fluid is TOTAL AT42

Bleeding procedure:
PS Pump A.PNG
  • Top up the power steering reservoir level to the mark ( c ) on the cap.
  • With the engine not running, turn the steering slowly from lock to lock in both directions ( Approximately 10 times) .
  • Top up the power steering reservoir level to the mark ( c ) on the cap.
Bleeding: Power steering hydraulic system
  • Run the engine at idle for 2 to 3 minutes without moving the steering wheel.
  • Bleed the circuit by turning the steering several times in each direction.
  • Keep the fluid level topped up.
level: Power steering hydraulic system
  • (H): Maximum level ( Hot) .
  • (C): Maximum level ( Cold).
  • (ADD): Level minimum.
The oil level must be checked/topped up with the engine off.
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Re: Power steering pumps keep failing - Peugeot Partner Combi 2005 2.0 HDI

Post by moosemaster »

Thanks all! Given that I've already had two pumps from Carparts4less - I've one in a box ready to be picked up and returned - they will then send out a new pump, I guess I'll just keep at it until they send one that isn't a dud...

And thank you for the bleeding procedure, I'll ask the chap who fitted the pump if he carried it out properly. Would incorrectly bleeding cause the pump to fail so quickly?
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Re: Power steering pumps keep failing - Peugeot Partner Combi 2005 2.0 HDI

Post by white exec »

Hydraulic pumps aren't usually damaged by having to cope with air, it's just that they're not usually gpod at pumping it or shifting it, or outputting full pressure if there is air there. Hence the importance of the bleeding procedure.

Q for Marc...
Do you need to lift the wheels off the ground to be able to turn the steering from lock to lock with engine not running?
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Re: Power steering pumps keep failing - Peugeot Partner Combi 2005 2.0 HDI

Post by xantia_v6 »

Does anyone know what the internal structure of these pumps is? gear pump, vane pump or piston pump?
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Re: Power steering pumps keep failing - Peugeot Partner Combi 2005 2.0 HDI

Post by GiveMeABreak »

white exec wrote: 31 Jul 2018, 13:43 Hydraulic pumps aren't usually damaged by having to cope with air, it's just that they're not usually gpod at pumping it or shifting it, or outputting full pressure if there is air there. Hence the importance of the bleeding procedure.

Q for Marc...
Do you need to lift the wheels off the ground to be able to turn the steering from lock to lock with engine not running?
Hi Chris - No, it is done on the ground, not to say that it wouldn't be easier - but it's important for the fluid level to be accurate.

The X7 is different and is done with engine running (Electrohydraulic Pump) as there would be no chance in Hell of moving it without assistance, unless you are Bruce Banner and in 'Hulk mode'.
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Re: Power steering pumps keep failing - Peugeot Partner Combi 2005 2.0 HDI

Post by GiveMeABreak »

xantia_v6 wrote: 31 Jul 2018, 13:50 Does anyone know what the internal structure of these pumps is? gear pump, vane pump or piston pump?
I've nothing on this except that it is made by Delphi, and is a pump with falling output with pump regulation of 100 to 5 bars.
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Re: Power steering pumps keep failing - Peugeot Partner Combi 2005 2.0 HDI

Post by EDC5 »

I'd be tempted to place two old or very cheap baking trays under the front wheels when turning lock-to-lock repeatedly to save the tyres!
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