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  #1  
Old 10-31-2017, 06:50 PM
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1984 300D powersteering not working

My power steering just stoped working. I changed the pump last year with a used one. It worked fine until now. There is no leaks and the pump is full of oil. the front end is all new. does anyone have a idear what is wrong? Thanks.

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  #2  
Old 10-31-2017, 08:36 PM
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Belt still on t?
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  #3  
Old 10-31-2017, 10:20 PM
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Belt still tight? Sometimes they get loose enough to fail to drive the pump.
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83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 362,xxx miles
08 Triumph Street Triple 30,xxx miles, lowered 10mm in front, Pirelli Angel GT tires, EBC HH brake pads, otherwise stock.
88 Jaguar XJS V12 92,xxx miles. I should be in the garage now.
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Old 10-31-2017, 10:30 PM
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yep belt is on and tight. thanks
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Old 11-01-2017, 06:28 PM
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does anyone know someone who rebuilds powersteering pumps?
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  #6  
Old 11-01-2017, 07:19 PM
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Is there fluid movement in the reservoir when the engine is running?
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  #7  
Old 11-04-2017, 04:51 PM
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I changed the pump and still have the same problem.
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  #8  
Old 11-04-2017, 09:40 PM
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Either a hose is blocked, or there's a problem in the steering box. I'd start by checking the hoses.
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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 362,xxx miles
08 Triumph Street Triple 30,xxx miles, lowered 10mm in front, Pirelli Angel GT tires, EBC HH brake pads, otherwise stock.
88 Jaguar XJS V12 92,xxx miles. I should be in the garage now.
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  #9  
Old 11-05-2017, 02:18 PM
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I saw that the high pressure line was damaged next to the fitting.So I changed it thinking that maybe the inside was damaged also. The line was clear. now im going for some steering fluid. thanks for all your help. I will check the return line also.
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  #10  
Old 11-05-2017, 03:03 PM
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Can you see fluid movement in the reservoir when the engine is running? If so, the pump is moving fluid and your problem is likely in the steering box. It's highly unlikely to be the pump or lines - you already changed the pump and the hydraulic pressure is sufficient to blow through any "blockage" that may be in the lines.

If you changed the pump and had an air pocket in there, it's possible you're airbound. Try running the engine and turning the steering wheel lock to lock several times to "burp" the system.
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  #11  
Old 11-05-2017, 05:28 PM
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yes fluild is moving in the pump. The steering is harder turning to the right than it is to the left. I will replace the steering box next. Thanks for the help!

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