Recent Topics
2009 Taurus strut mount noise
by terry274
54 minutes 43 seconds ago
A3/B3 vs A3/B4, big difference or irrelevant?
by FordCapriDriver
Today at 03:36 PM
2003 Honda power steering problem
by hogpops
Today at 03:29 PM
Public Service Announcement: Flush Your HW Heater
by gathermewool
Today at 03:25 PM
Fellow 2AZ-FE toyota owners: what oil are you usin
by car51
Today at 03:21 PM
Castrol 0W40 vs 5W40??
by Realfine69
Today at 03:02 PM
Paint impurities on a new car
by Quattro Pete
Today at 02:49 PM
2014 Ram wheel FIT on a 2005 Ram?
by SumpChump
Today at 02:41 PM
Do people buy from telemarketers?
by Chris142
Today at 02:06 PM
TGMO 0W20, 8100km/5mo, 2013 Lexus GS350AWD 118K KM
by David_Corbett
Today at 01:54 PM
Sonoma Raceway
by Warstud
Today at 01:51 PM
Zipcode error
by aquariuscsm
Today at 01:36 PM
NHRA drag racing Racing question??
by daddi
Today at 01:33 PM
Milesyn 5w30 5 gal pails $50.94 w/prime
by Samrsnow
Today at 01:20 PM
Removing Broken Bathtub Drain
by Warstud
Today at 01:15 PM
Buffer Pads
by TheLawnRanger
Today at 01:10 PM
Recommend an oil to me... Pennz, M1, Castrol...?
by chinee
Today at 12:39 PM
Filter for Hydro Gear ZT2800 - Toyota???
by Lancruza
Today at 12:39 PM
Motul 5W30, 3000KM/12 mo, 06 Acura RSX-S 161K KM
by lemaitrix
Today at 12:38 PM
DeWalt dcf887b 3spd impact driver
by JC1
Today at 12:34 PM
Newest Members
crrider, EdDmax, 2018matto, Lancruza, IanSampson
65312 Registered Users
Who's Online
86 registered (55hambone, aquariuscsm, ArrestMeRedZ, 93cruiser, 2018matto, 97prizm, 4 invisible), 1613 Guests and 43 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65312 Members
67 Forums
285927 Topics
4771570 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4497094 - 08/24/17 03:27 PM Power steering is puking metal particles
Boosted240 Offline


Registered: 07/06/09
Posts: 20
Loc: Canada
A couple weeks ago I posted an issue where I changed the fluid in my Nissan PS system and upon doing so i noticed very small bubbles circulating in the reservoir. Applied vacuum to the reservoir, no leaks, no odd noises and the steering worked like it should. Still trouble shooting the issue I noticed the fluid starting to get glittery, when i went to take a peek at the bottom of the reservoir there were small metal particles all over the bottom(brand new reservoir as well). I emptied the reservoir, cleaned it and filled it back up. Ran the car for another 5 minutes, next morning I check the reservoir and it's got a bunch of metal particles in the bottom again. Keep in mind I have not drove the car since, only let it run idle. I pulled the pump and took it apart but can't find any obvious sources of wearing. Any advice here? I'm quite certain the metal isn't from the rack, but is there anything else I should investigate before purchasing a new pump? Fluid used is Mobil D/M ATF. Thanks all

Top
#4497124 - 08/24/17 03:58 PM Re: Power steering is puking metal particles [Re: Boosted240]
nthach Offline


Registered: 01/02/04
Posts: 3909
Loc: California
The pump is probably the likely source of the metal glitter, it's the only part of the system where there's direct metal-on-metal contact with the fluid. The rack also has contact with fluid but it's not moving it under pressure, it's directing fluid to certain paths.

I would wager the pump seals are leaking allowing air to enter the system and aerate the fluid.

Top
#4497125 - 08/24/17 03:59 PM Re: Power steering is puking metal particles [Re: Boosted240]
zorobabel Offline


Registered: 01/27/11
Posts: 479
Loc: Anaheim, CA
Maybe someone used a stopleak in the PS system?
_________________________
1997 Maxima 175k, Delvac 15w40, Wix 51315
2004 Corolla 189k, VWB 5w20 + SSS 10w40, MGL4967

Top
#4497128 - 08/24/17 04:03 PM Re: Power steering is puking metal particles [Re: Boosted240]
dlundblad Offline


Registered: 09/30/13
Posts: 10058
Loc: Indiana
Since the pump was so easy to remove and inspect, I would just reinstall and run it until it dies. Does a Nissan require any special fluid? A few anal retentive drain and fills on a weekly basis may be in order if it bothers you that much.
_________________________
03 Jeep WJ 4.0 199k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 145k Rotella T5 10w30 Fram TG3980


Top
#4497142 - 08/24/17 04:24 PM Re: Power steering is puking metal particles [Re: Boosted240]
Boosted240 Offline


Registered: 07/06/09
Posts: 20
Loc: Canada
The only thing I'm concerned about with running the system with a metal shedding pump is that it could be abrasive to the seals in the rack. Just seems odd this problem arose from a fluid change.

Top
#4497148 - 08/24/17 04:39 PM Re: Power steering is puking metal particles [Re: zorobabel]
nthach Offline


Registered: 01/02/04
Posts: 3909
Loc: California
Originally Posted By: zorobabel
Maybe someone used a stopleak in the PS system?

PS stop leaks are seal swell or polymeric products, not a ginger root or aluminum/resin powder.

I'd pull the reservoir, pump and see if you push some clean fluid into the lines and rack to get the grit out, and then install a new pump and reservoir(unless you can get the existing one surgically clean, Japanese ones use a sponge or mesh filter in them). Flush out the system with as much ATF or specified fluid to get things clean. It wouldn't hurt to install a Magnefine on the return line, I've never done it but there's not much to filter a power steering system.

Top
#4497165 - 08/24/17 05:03 PM Re: Power steering is puking metal particles [Re: nthach]
zorobabel Offline


Registered: 01/27/11
Posts: 479
Loc: Anaheim, CA
Originally Posted By: nthach
Originally Posted By: zorobabel
Maybe someone used a stopleak in the PS system?

PS stop leaks are seal swell or polymeric products, not a ginger root or aluminum/resin powder.

I'd pull the reservoir, pump and see if you push some clean fluid into the lines and rack to get the grit out, and then install a new pump and reservoir(unless you can get the existing one surgically clean, Japanese ones use a sponge or mesh filter in them). Flush out the system with as much ATF or specified fluid to get things clean. It wouldn't hurt to install a Magnefine on the return line, I've never done it but there's not much to filter a power steering system.

I've seen a guy pour PS fluid in his brake fluid reservoir (I seem to remember it was a BMW :)); someone like that would have no problem adding some of that copper powder radiator stop leak to the PS.

There are people on this board that filter their PS fluid, not sure it's worth it.
_________________________
1997 Maxima 175k, Delvac 15w40, Wix 51315
2004 Corolla 189k, VWB 5w20 + SSS 10w40, MGL4967

Top
#4497191 - 08/24/17 05:39 PM Re: Power steering is puking metal particles [Re: Boosted240]
DoubleWasp Offline


Registered: 05/21/12
Posts: 5236
Loc: Fort Lauderdale, FL
Ps filter would solve nothing. It's on the return line. Pump could still send all he'll down in there.
_________________________
07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio

Top
#4497343 - 08/24/17 09:13 PM Re: Power steering is puking metal particles [Re: Boosted240]
Boosted240 Offline


Registered: 07/06/09
Posts: 20
Loc: Canada
So I think i'll reassemble the pump with new seals and gaskets and reinstall with a magnefilter on the return line. Run it for a bit, then remove the filter and run again. If I still find metal particles, i'll resort to a new pump.

Top
#4497711 - 08/25/17 12:03 PM Re: Power steering is puking metal particles [Re: Boosted240]
nthach Offline


Registered: 01/02/04
Posts: 3909
Loc: California
Originally Posted By: Boosted240
So I think i'll reassemble the pump with new seals and gaskets and reinstall with a magnefilter on the return line. Run it for a bit, then remove the filter and run again. If I still find metal particles, i'll resort to a new pump.

The cam pack and vanes are more than likely toast - I'd just put in a new pump for all the effort you're doing.

Is this the OEM Nissan pump or a reman?

Top
#4497844 - 08/25/17 03:00 PM Re: Power steering is puking metal particles [Re: nthach]
Boosted240 Offline


Registered: 07/06/09
Posts: 20
Loc: Canada
Originally Posted By: nthach
Originally Posted By: Boosted240
So I think i'll reassemble the pump with new seals and gaskets and reinstall with a magnefilter on the return line. Run it for a bit, then remove the filter and run again. If I still find metal particles, i'll resort to a new pump.

The cam pack and vanes are more than likely toast - I'd just put in a new pump for all the effort you're doing.

Is this the OEM Nissan pump or a reman?


OEM pump about 75,000 miles and 22 years old. Is there any visual cues that could confirm that the cam and vanes are done? I have the entire pump taken apart and can't see anything that really stands out. There is a portion of the housing inside on the high pressure side that is unmachined and still rough from the original aluminium casting but I can't imagine the ATF could be wearing that down and creating the metallic glitter in the fluid. I can take photos this weekend if it helps.

Top
#4497942 - 08/25/17 04:56 PM Re: Power steering is puking metal particles [Re: Boosted240]
nthach Offline


Registered: 01/02/04
Posts: 3909
Loc: California
The vanes should be smooth, the outer and inner cam should not be at all scored.

For all the effort you're doing, put in a new pump.

Top
#4498382 - 08/26/17 06:57 AM Re: Power steering is puking metal particles [Re: Boosted240]
kc8adu Offline


Registered: 08/02/05
Posts: 894
Loc: dayton oh
yes replace it and hope the rack isnt full of metal too.
i would stick a filter in the return to try and get what is still in the system after a flush.

Top