Power steering pump noise
#1
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2004 XJ8 90k mi, is it possible for it to groan because of a bad hose
or regulator and not have the pump be the problem ?
It's quite when first started then after driving it for a while it starts
to whine/groan especially while turning.
Hope its not the pump, replacements are stupid expensive![Frown](https://www.jaguarforums.com/forum/images/smilies/frown.gif)
Thanks for any input ..
or regulator and not have the pump be the problem ?
It's quite when first started then after driving it for a while it starts
to whine/groan especially while turning.
Hope its not the pump, replacements are stupid expensive
![Frown](https://www.jaguarforums.com/forum/images/smilies/frown.gif)
Thanks for any input ..
#2
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90 S-4 (04-02-2018)
#4
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I had kind of similar problem, but my car had more of a squeaking sound (although it might be called whining sound too).
On this forum I was advised to look at the Jaguar Technical Bulletin is JTB 00055 and use the fluid C2S 48887. It actually helped!
I am attaching two files from that post. Hope it helps.
On this forum I was advised to look at the Jaguar Technical Bulletin is JTB 00055 and use the fluid C2S 48887. It actually helped!
I am attaching two files from that post. Hope it helps.
Last edited by -Greg-; 04-03-2018 at 10:41 AM. Reason: spelling...
#7
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2004 XJ8 90k mi, is it possible for it to groan because of a bad hose
or regulator and not have the pump be the problem ?
It's quite when first started then after driving it for a while it starts
to whine/groan especially while turning.
Hope its not the pump, replacements are stupid expensive![Frown](https://www.jaguarforums.com/forum/images/smilies/frown.gif)
Thanks for any input ..
or regulator and not have the pump be the problem ?
It's quite when first started then after driving it for a while it starts
to whine/groan especially while turning.
Hope its not the pump, replacements are stupid expensive
![Frown](https://www.jaguarforums.com/forum/images/smilies/frown.gif)
Thanks for any input ..
I think the pump and rack is unique to Jaguar. May be wrong on this.
On all of my European cars I have taken the trusty Mitey Vac and siphoned the power steering sump dry. Then refilled with fresh fluid. Drive a week and repeat. After three cycles the fluid looks and smells better. Two liters should take care it.
I believe this will add years to the life of the steering system.
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Don B (04-10-2018)
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According to the Material Data Safety Sheets, they are both amber in color, but otherwise they do not appear to be the same chemically:
Jaguar Additive PAS Fluid C2S48887 MSDS
Lubrizol 6178 MSDS
Cheers,
Don
#12
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Actually, they are both really close in their chemistry, and both used as an anti-wear additive. Amine phosphates are often used in high pressure lubes for this purpose. The relative proportions between them is close enough to be utilized for the given purpose as long as you use the amount specified.
Last edited by Box; 04-26-2018 at 05:13 AM.
#13
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Hi David,
Thanks for chiming in with your expertise. For those of us who are interested in such things, I would welcome further explanation of how these two products are "both really close in their chemistry." Their flash points, densities, viscosities and pour points are virtually identical, but according to the MSDS, the listed ingredients seem very different:
Jaguar Additive PAS Fluid C2S48887:
Reaction products of alcohols C14-18, C18 unsat., esterfied with phosphorous pentoxide and salted with amines, C12-14, -tert-alkyl: CAS 939-591-3
Methanol: CAS 67-56-1 / 200-659-6
Lubrizol 6178:
Alkylamine salt of alkyl phosphoric acid: CAS not determined
Oleyl alcohol: CAS 143-28-2
Mineral Oil: CAS not provided
I only had a couple of years of chemistry, so I admit I'm no expert. But aside from the presence of amine salts, how are these chemically similar? Any additional education would be greatly appreciated!
Cheers,
Don
Thanks for chiming in with your expertise. For those of us who are interested in such things, I would welcome further explanation of how these two products are "both really close in their chemistry." Their flash points, densities, viscosities and pour points are virtually identical, but according to the MSDS, the listed ingredients seem very different:
Jaguar Additive PAS Fluid C2S48887:
Reaction products of alcohols C14-18, C18 unsat., esterfied with phosphorous pentoxide and salted with amines, C12-14, -tert-alkyl: CAS 939-591-3
Methanol: CAS 67-56-1 / 200-659-6
Lubrizol 6178:
Alkylamine salt of alkyl phosphoric acid: CAS not determined
Oleyl alcohol: CAS 143-28-2
Mineral Oil: CAS not provided
I only had a couple of years of chemistry, so I admit I'm no expert. But aside from the presence of amine salts, how are these chemically similar? Any additional education would be greatly appreciated!
Cheers,
Don
Last edited by Don B; 04-26-2018 at 10:17 AM.
#14
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Hi David,
Thanks for chiming in with your expertise. For those of us who are interested in such things, I would welcome further explanation of how these two products are "both really close in their chemistry." Their flash points, densities, viscosities and pour points are virtually identical, but according to the MSDS, the listed ingredients seem very different:
Jaguar Additive PAS Fluid C2S48887:
Reaction products of alcohols C14-18, C18 unsat., esterfied with phosphorous pentoxide and salted with amines, C12-14, -tert-alkyl: CAS 939-591-3
Methanol: CAS 67-56-1 / 200-659-6
Lubrizol 6178:
Alkylamine salt of alkyl phosphoric acid: CAS not determined
Oleyl alcohol: CAS 143-28-2
Mineral Oil: CAS not provided
I only had a couple of years of chemistry, so I admit I'm no expert. But aside from the presence of amine salts, how are these chemically similar? Any additional education would be greatly appreciated!
Cheers,
Don
Thanks for chiming in with your expertise. For those of us who are interested in such things, I would welcome further explanation of how these two products are "both really close in their chemistry." Their flash points, densities, viscosities and pour points are virtually identical, but according to the MSDS, the listed ingredients seem very different:
Jaguar Additive PAS Fluid C2S48887:
Reaction products of alcohols C14-18, C18 unsat., esterfied with phosphorous pentoxide and salted with amines, C12-14, -tert-alkyl: CAS 939-591-3
Methanol: CAS 67-56-1 / 200-659-6
Lubrizol 6178:
Alkylamine salt of alkyl phosphoric acid: CAS not determined
Oleyl alcohol: CAS 143-28-2
Mineral Oil: CAS not provided
I only had a couple of years of chemistry, so I admit I'm no expert. But aside from the presence of amine salts, how are these chemically similar? Any additional education would be greatly appreciated!
Cheers,
Don
Last edited by Box; 04-26-2018 at 07:55 PM.
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Here, for example is an additive company that sells different variation of amine phosphates for anti-wear additives to lubricants. And while each has a specific range they run in, they too basically carry the same chemical structure as both the Jaguar and Lubrizol additives.
Did you intend to include a link to another additive company's product? If so, the link didn't make it.
Cheers,
Don
#17
#18
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would like to hear if 90 S-4 solved the problem - this just started happening for me. I checked the fluid level, and it is indeed just a hair below the MIN line, and looking rather black. Might just top it off or put in some additive to see if that helps until it cools down long enough for me to feel like messing with it.
Excellent thread, and i see there is another one showing how to flush the fluid for when I'm ready.
cheers!
Excellent thread, and i see there is another one showing how to flush the fluid for when I'm ready.
cheers!
#19
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Vacuuming out the reservoir is the easy method. After three flushes it is clean fluid.
I usually drive for a week between, around the block is enough. The reservoir could be drained three times and refilled in less than an hour.
Replacing the fluid is good for the pump and the rack.
I usually drive for a week between, around the block is enough. The reservoir could be drained three times and refilled in less than an hour.
Replacing the fluid is good for the pump and the rack.
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ayavner (08-03-2018)
#20