1994 Mazda B-4000 Power Steering Leak

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OSUNAS2000
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I own a 1994 Mazda B-4000 V-6 automatic. I have changed the power steering pump, return and high pressure hoses but it still leaks. It leaks in between the high pressure hose nut where the rubber seal is and the metal pipe. I thought it was defective so I exchanged it, but it does the same thing. Any advice to what is causing this problem? Thank you.
Jan 22, 2007 at 1:24 PM
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MATHIASO
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Are you sure you didn't forget any seal, and or did you tight it correctly?
Jan 22, 2007 at 3:43 PM
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OSUNAS2000
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There was only one o ring for the pressure hose, which was already on. The power steering pump came with an o ring but just so I could put a new one on the pressure hose, nothing else. I know theres another seal on the pressure hose, but that one is in the inside of the nut connecting into pump. So I don't know. As for tighten, it sat correctly into the pump and it is tighten to specs. I just dont know.
Jan 22, 2007 at 5:08 PM
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2CARPRO JACK
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Look inside the pump to be sure the mating end of the hose has the correct flare on it. Ive seen different hose ends on cars that were made only months apart
Jan 22, 2007 at 11:47 PM

Suggested Repair

Inspect the pump port and high-pressure hose mating end for the correct flare and seal fit. Hose ends can differ even on vehicles built months apart, so a mismatched flare can leak when the hose is new and torqued to spec. Confirm the O-ring and internal nut seal are present and seated.

Conversation Summary

The owner of a 1994 Mazda B-4000 replaced the power steering pump and the return and high-pressure hoses, but fluid still leaks at the high-pressure hose nut between the rubber seal and metal pipe. A replacement hose leaked the same way. The owner said the supplied O-ring was installed and the fitting was tightened to specification. Experts advised confirming no seal was missed and checking that the hose end has the correct flare for the pump.

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