Power steering line diagram needed?

Tiny
ROBERT CLARK2
  • MEMBER
  • 2007 FORD FOCUS
  • 2.0L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 190,000 MILES
I got a leak and after using leak detector it's coming from above the engine oil filter. Any idea whether it's a hard line, rubber hose or where the rubber goes into a hard line?
Thursday, May 25th, 2023 AT 9:59 PM

16 Replies

Tiny
BRENDON S
  • MECHANIC
  • 653 POSTS
Hello ROBERT, CLARK2,

It looks like the pressure line for the power steering runs right in that area. It is a combination of a metal line and flexible hose. It runs from the pump straight to the rack.

I will add a diagram for you.

I found a part number from Motorcraft, Fords value line, which comes with all the seals you will need as well.

Part number: 7S4Z3A719B

You can go to the dealer for it, or Rock Auto may have it as well.

In case you need it, the fluid is just Motorcraft Mercon V.

The pressure switch may not come with it (marked in green). If it doesn't you will need new O-rings for that.

Removing the battery and battery tray will help give you some room.

I will add some instructions on how to replace the pressure line and removal of the battery tray from my information.

The instructions have you remove the power steering pump pulley, but I would look and see if you can get a wrench on it without removing it to save to some time. If you need to remove it a 2-jaw puller might work but I would use a power steering pump pulley puller, say that ten times fast lol. You can rent one at an auto parts store.

I would use a little bit of new power steering fluid on each O-ring to avoid them tearing and help them slide in.

To bleed the system just fill the system up when line is replaced, and vehicle is still on jackstands.

1) With the car off, turn wheels lock to lock slowly while an assistant watches for bubbles at the pump and adds a little fluid at a time.

2) Once no more bubbles are seen, top off the fluid and start the car and turn steering wheel lock to lock slowly while an assistant watches for bubbles and add fluid as needed.

You may need to repeat this a couple times especially if the pump starts to make noise.

Make sure as you are filling you are watching for leaks.

Let me know if I can help you with any other information.
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Friday, May 26th, 2023 AT 11:54 AM
Tiny
ROBERT CLARK2
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You said Mercon v. Isn't that trai fluid? Like I heard you can use it if there's no power steering fluid but shouldn't power steering fluid go in first and foremost?
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Friday, May 26th, 2023 AT 2:39 PM
Tiny
BRENDON S
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Hello ROBERT CLARK2,

Some take power steering fluid others just use transmission fluid for power steering. In my opinion you should always put in what the manufacturer recommends when changing fluids. Dexron, Mercon, ATF+4, Type F and others are used by manufacturers as power steering fluid.

Sometimes a system can also take one or the other. But the 2 should never be mixed.

I added the fluid chart for you from my reference manual.

Thank you,
Brendon
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Friday, May 26th, 2023 AT 3:12 PM
Tiny
ROBERT CLARK2
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  • 21 POSTS
When it comes to replacing the power steering pressure line, if you remove the low pressure line in front of it, does it make the pressure line accessible?
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Wednesday, June 14th, 2023 AT 11:31 AM
Tiny
BRENDON S
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Hello ROBERT CLARK2,

Do you mean at the pump? If so, yes that will help but if you still don't have enough room, you might have to remove the pulley. You're going to bleed the whole system anyways so if it's in the way, I would take it off. You may need to remove it from the rack anyway to get the other line out.

Here is a video on how to use a power steering pump pulley puller and one can be rented at your local auto parts store: https://youtu.be/K8zHpXcI8_o

Thank you,
Brendon
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Wednesday, June 14th, 2023 AT 12:08 PM
Tiny
ROBERT CLARK2
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Thanks. Took me about 5 hours, mainly because I took my time, and it got dark, but everything worked out.
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Thursday, June 15th, 2023 AT 12:42 AM
Tiny
BRENDON S
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Good morning, ROBERT CLARK2,

That's not bad for time considering how tight everything is in that engine compartment. Power steering lines can be a nightmare sometimes. Some of the way these manufacturers route these lines does not help either.

Where you able to bleed the system as well and did the new line come with a new pressure sensor on it?

Thank you,
Brendon
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Thursday, June 15th, 2023 AT 4:47 AM
Tiny
ROBERT CLARK2
  • MEMBER
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I want to say the hardest part really was getting the line out after it was disconnected because it hooked on all the wires because of the ends. And when you say bleed, like bleed the air or drain the old fluid. I forgot to bleed the old fluid, so it was a bit of a mess luckily it dripped most of the fluid while driving though.
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Thursday, June 15th, 2023 AT 10:55 AM
Tiny
BRENDON S
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Hello ROBERT CLARK2,

I see makes sense though cause of the way they are routed. Glad you got it all together.

What I mean about bleeding it is getting all the air out of the system as any air can cause issues, especially with the pump. Just asking in case you needed any help with that or more information.

But sounds like you have it handled. If anything comes up or you have any more questions at all, let us know.

Thank you,
Brendon
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Thursday, June 15th, 2023 AT 11:26 AM
Tiny
ROBERT CLARK2
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Well, good news and bad. Good news. The part was cheap and now I got a new line that may have given me a prob. Bad news that's not the leak. In the first pic of the thread labeled 4. What is that. Is seems to be leaking from that.
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Thursday, June 15th, 2023 AT 12:15 PM
Tiny
ROBERT CLARK2
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Or its leaking on it if that has nothing to do with it.
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Thursday, June 15th, 2023 AT 12:28 PM
Tiny
BRENDON S
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Hello ROBERT CLARK2,

Is this the right image? If so, this is the oil filter housing.

Should be right where that line was so it's possible the line leaked onto it because this should be below it.

I would get a few cans of brake clean and clean the entire area extremely well. Then I would let it idle for a bit and see if anything starts to leak. If you don't see anything I would then drive the car a few miles, maybe around town and check it. I would stay off the highway, so it doesn't get blown around and makes it harder to see where it is coming from.

You can add some UV dye to your oil and use a UV light to pinpoint the leak. This is the best way in my opinion. However, it needs to be checked often because if it leaks too much you won't be able to tell where it is coming from.

Your first post you said you used leak detector, that sounds like dye, is that correct? If so, did you only put it in the power steering system?

Thank you,
Brendon
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Thursday, June 15th, 2023 AT 12:46 PM
Tiny
ROBERT CLARK2
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Found it. Couldn't see it because it was so close with the pressure hose and almost on top of the oil filter. It's a tiny pin hole lol. How much pressure is in that hose. I got some job water weld putty to at least slow it down till I get a new one. Would that work?
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Thursday, June 15th, 2023 AT 2:11 PM
Tiny
BRENDON S
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Hello ROBERT CLARK2,

Is that the power steering return line?

If so, pressure can be up to 150 psi.

You could try to clean it really well with brake clean to get all the oil off and see if you can get a couple good wraps of duct tape on it maybe. I'm not sure if you have the room though.

I don't think the putty is going to hold it and if it gets into the system, it could cause issues.

Thank you,
Brendon
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Thursday, June 15th, 2023 AT 3:27 PM
Tiny
ROBERT CLARK2
  • MEMBER
  • 21 POSTS
Yes, that's the return line. Okay, I'll do that tonight. Thanks for all your help with this headache.
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Thursday, June 15th, 2023 AT 4:56 PM
Tiny
BRENDON S
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Hello ROBERT CLARK2,

No problem. Happy to help. If you got any more questions, just let me know.

Thank you,
Brendon
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Thursday, June 15th, 2023 AT 5:39 PM

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