Power steering diagram

TOYPACIFIC

MEMBER
2003 TOYOTA HIGHLANDER
4 CYL
2WD
AUTOMATIC
150,000 MILES

Good day, may I request for a power steering diagram? I have a leak in one of the lines if not more then one line. Preferably pressure hose and return hose.
Thank you

Wednesday, September 23rd, 2020 AT 9:09 PM

5 Replies

KASEKENNY

MECHANIC
18,907 POSTS

I am attaching the diagrams for the pumps that are available for this vehicle. It is either the 2AZ-FE pump or the 1MZ-FE pump. I believe the 4 cylinder engine gets the 1MZ-FE but you should be able to compare the layout/diagram to what you have just to be sure.

Thanks.

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Thursday, September 24th, 2020 AT 6:08 AM

TOYPACIFIC

MEMBER
159 POSTS

Thank you, thank you.
I will figure out the correct diagram but at least I know what to look for.
By the way, the return hose, would you happen to know where that would be located?
I see the pressure hose so I'm thinking the return hose also comes out the pump, yes?

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Thursday, September 24th, 2020 AT 6:33 AM

KASEKENNY

MECHANIC
18,907 POSTS

I am sorry. The 4 cylinder engine is the 2AZ-FE diagram.

As for the return line, that does not come off the pump. The flow through the system is it goes from the reservoir to the pump, from the pump to the rack and pinion as high pressure, from the rack back to the reservoir.

So in the attachments, the pump has a number 1 and 2 in red that I added. Number 1 is the pressure line going to the rack. Number 2 is from the reservoir to the pump.

The second attachment is number 1 is from the pump to the rack (pressure line). Then number 2 is from the rack back to the reservoir.

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