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#1
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Power Steering Fluid Milkshake??
A friend of mine was nice to help change the return line on my power steering pump. I am going on a long trip tomorrow and checked the level to see that it's filled with an orange julius!
What the heck made it do that? Was it possibly mixed with brake fluid?? ATF would have made it pink....right? |
#2
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Air is a good possibility. Check the tightness of all your lines.
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#3
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I'll have to check the hoses again in the morning. The clamps are all tight and there are no leaks visible.
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#4
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It may have an air bubble in it keeping it underfilled.
Turn wheel lock to lock and hold against bump stop a few times to purge; then check level again.
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Terry Allison N. Calif. & Boca Chica, Panama 09' E320 Bluetec 77k (USA) 09' Hyundai Santa Fe Diesel 48k (S.A.) |
#5
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If it was air, wouldn't the air bubbles dissipate after a while and the normal color retun?
__________________
" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century OBK #55 1998 Lincoln Continental - Sold Max 1984 300TD 285,000 miles - Sold The Dee8gonator 1987 560SEC 196,000 miles - Sold Orgasmatron - 2006 CLS500 90,000 miles 2002 C320 Wagon 122,000 miles 2016 AMG GTS 12,000 miles |
#6
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PO realized he was low on fluid while at an Orange Julius???
__________________
1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
#7
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I'd vote for air too, although the other suggestions are intriguing
I just flushed my fluid/filter the other week and when flushing (with 2 qts of cheap PS fluid until clear)....I didn't have a lovely assistant to help me. I'd shut if off as soon as I could....but it sucked some air and looked very, very similar to that. Unfortunately, you're probably getting air somewhere.
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1981 240d - 135k - Arlene |
#8
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I added PSF after pumping the reservoir out and it's still like heavy whipping cream out of the container. There aren't any air bubbles anywhere.
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#9
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That looks remarkably like mine did when I accidentally got some water in it from cleaning the motor with a bad pump cap seal. Has the engine bay seen water recently?
I'd try flushing until it's clear, and then see if it happens again. It sure can't be good for it to look like that. Edit: When I say flushing, I don't mean just replacing what's in the pump reservoir. Unhook the return line and have an assistant handy. One gets to pour fresh fluid in while making sure the bucket catching the old fluid doesn't spray everywhere, and the other person gets to turn the steering wheel back and forth lock to lock several times during the process. I actually had better luck wiring the stop lever down and running the pump by cranking the motor without starting it. Fluid flow seems too high to ensure I could keep up with it while the motor is running at idle.
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- K.C.Adams '77 300D Euro Delivery OM617 turbo / 4-speed swap 404 Milanbraun Metallic / 134 Dattel MB-Tex Current status: * Undergoing body work My '77 300D progress thread |
#10
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At this point, the air you're looking for would be whipped into such fine bits, it will take a while for it to separate. Put some in a glass jar and let it sit overnight.
Steve |
#11
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No it hasn't seen any water. It's been cool but not rainy here. The cap was on securely and hose was changed Saturday, fluid added and then driven about 100 miles since until I discovered what it looked like. I flushed it twice but it still seems to be highly contaminated.
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#12
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I had a big sample in a brake bleeder container, I just looked at it now and it's still the same homogeneous blend.
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#13
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Intriguing. Was it the high or low pressure hose you changed? Or both?
Anyway, I wonder what's causing this. fluid incompatibility doesn't seem likely, as I've never seen such a reaction. Perhaps something in the pump is really just whipping air in to it. Try the suggestion made previously about putting some in a glass jar overnight. That will tell us if it's air in the fluid. (I see you beat me to results with this.) There's maybe some possibility that when you flushed, some air made it in to the steering box and is trapped there. Turning the wheels fully lock to lock while keeping the reservoir filled up and the pump turning is required to purge the air if it's there. Heck, it;s required to purge the old, nasty fluid, too.
__________________
- K.C.Adams '77 300D Euro Delivery OM617 turbo / 4-speed swap 404 Milanbraun Metallic / 134 Dattel MB-Tex Current status: * Undergoing body work My '77 300D progress thread |
#14
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Exactly what did your friend put in as replacement fluid? ATF maybe? I hope it wasn't brake fluid! The answer to that will explain if its a chemical mistake.
Buy a bunch of cheap PS fluid, the OTC kind for generic cars, usually clear, pour it in as described while turning lock to lock and use a big jug to catch the old fluid. Repeat that until its clear then put in OE fluid the same way, you'll need 2 or 3 jugs of it.
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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting! |
#15
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If it's not air, or water, I don't know what it is. I'm a bit stumped.
Power steering fluid is cheap. Flush it until it's clear and then take it for a drive to see if it magically transforms again.
__________________
- K.C.Adams '77 300D Euro Delivery OM617 turbo / 4-speed swap 404 Milanbraun Metallic / 134 Dattel MB-Tex Current status: * Undergoing body work My '77 300D progress thread |
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