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Old 01-08-2025, 02:36 PM #1
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Steering issue...

Hello!
I’m having a power steering issue with my 2002 4Runner/275,000. Just replaced the power steering pump- pressure line- and the steering rack. As I’ve been driving the past few days the truck won’t steer correctly- you point it in a direction and it stays going in that direction. Thought it might be an alignment issue but I just had it in the shop and it is still driving the same. Thought the PS pump might have been defective so I bought/installed another... no change. Feels like the pump isn't sending enough pressure- I'm getting about half the steering assist I normally have with this truck. I guess the new steering rack could be defective? Have any of you had a similar problem?

Thanks for your help!
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Old 01-08-2025, 03:43 PM #2
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Hmm odd. Have you bleed the rack? Jack up the front and slowly turn the wheels left and right with engine off. Check for air bubbles. Otherwise might be a bad rack, or bad castor on the alignment. Do you have the alignment printout?
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Old 01-08-2025, 06:42 PM #3
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Wheels on the ground takes a while to bleed the system . Lifting the truck and turning lock to lock has been easier for me to bleed the air out. Front wheels camber?
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Old 01-08-2025, 07:55 PM #4
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Quote:
Originally Posted by 2TH4IST View Post
Hmm odd. Have you bleed the rack? Jack up the front and slowly turn the wheels left and right with engine off. Check for air bubbles. Otherwise might be a bad rack, or bad castor on the alignment. Do you have the alignment printout?
Camber and caster were frozen/un-adjustable by firestone but did not change when when I replaced the steering rack PS pump etc. Thanks for the advice I'll try jacking it up and moving the wheel lock to lock several times with engine off.
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Old 01-08-2025, 07:57 PM #5
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Thank you- will do!
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Old 01-08-2025, 08:01 PM #6
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By those numbers, isn't your caster practically backwards?
Would that not explain the tendency to just keep tracking
on it's last trajectory rather than return-to-center?

I mean, yeah that's maybe a little exaggerated, but I'd say at least
bleed the system properly, get a sawzall, and get those cam adjusters
back under control.
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Old 01-08-2025, 08:29 PM #7
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thank you- was just online looking at the process of replacing those. this truck runs great- would like to see her break 300,000
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Old 01-08-2025, 08:40 PM #8
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thank you- was just online looking at the process of replacing those. this truck runs great- would like to see her break 300,000
Also, is it lifted a bunch?
That practically-zero caster seems like a big susp. lift
without any UCA correction for the new ride height.
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Old 01-08-2025, 09:34 PM #9
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2 inch lift
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Old 01-08-2025, 10:00 PM #10
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As ghostring said, replace those cam bolts, and get it re-aligned. And possibly look into front upper arms (they are pricy) but give some correction for caster.
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