In a power steering system a high pressure hose and a lower pressure return line is used to transfer the steering fluid from the pump to the box or rack and pinion which operates the system.
As with any hose as it ages it can develop a leak or a major rupture which will cause the power steering fluid to be pumped out of the system rendering it non operational. On rare occasions the high pressure hose can deteriorate internally causing a blockage also causing system failure.
Replacing a steering hose will vary per application but in general labor time at a shop should be between .5 and 2.5 hours. The cost of the high pressure hose on Amazon or Rock auto should be between $27.00 and $81.00 US, the return line or lower side hose will run about $10.00. If exact times or procedures are needed you can ask our experts to supply you with the information (free), or consult an online resource such as AllData DIY (pay) but this guide and video will be sufficient in most cases.
To begin, wear safety eyewear and locate the steering pump and box or rack and
pinion. See how the hose is routed and what will need to be removed to gain access
to the hose, if any. It does not matter which end of the hose you remove first,
we have started at the end of the hose where it connects to the steering box or
rack and pinion. It's important to use a
line wrench to avoid stripping the flare nut, apply pressure to the wrench to
remove the hose. Once the line is loose, fluid will begin to dip out so have a catch
Here we are at the rear of the steering pump using a line wrench to remove the
opposite end of the high pressure hose, again note the use of the
line wrench. Remove the hose from the
Install new sealing O rings to the replacement hose, one at each end. Also, confirm
the old O ring is on the old hose, if not remove the old O rings from the pump,
box or rack and pinion because this can cause a leak if the O rings are doubled
Please watch this video of the job being done, then continue down the guide to glean additional helpful information.
With the engine not running, remove the
cap and refill with fluid until full on the dipstick, or on the side of the
reservoir and reinstall the cap.
Start the engine and gently move the steering wheel back and forth. This will
help purge the air from the system, shut the engine off and recheck the fluid level.
Recheck the system for leaks and the fluid level in a day or so, you are all set.
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