Skip the auto shop - Our mechanics make house calls

Q: Power steering doesn't work well on revolution below 1000rpm.

asked by on

I have a Land Cruiser 80 Series with a Lexus V8 1UZ-FE VVTi conversion. On idle, the power steering is not always assisting in steering, but as soon as the revolution go above 1000rpm the power steering fine. The pump was removed and tested. All seals were replaced and on test bench pump exceeds recommended pressures. What can I do to solve this issue the easiest way?

My car has 350000 miles.
My car has an automatic transmission.

Hello, thanks for writing in. If the pump is building pressure then you either have a steering gear failure or a failure in the steering angle sensor. Depending on the year of the vehicle, it may use a steering angle sensor that tells the computer that you are turning the wheel and then allows it to build pressure. Most of the time though, this is caused by an internal failure of the steering gear. The spool valve usually gets clogged or breaks loose and causes this. If you want to have this hard steering problem checked out, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose and repair this.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Noise at front of car

First we’ll have to determine if it is a brake, suspension, or engine noise. Worn brake pads have indicators that squeak when the pads are worn. It will change when you apply the brake. Suspension noises are usually when hitting...

Q: Engine swap

Hello. Due to the simple fact that the 1NZ is a front wheel drive engine, I would not recommend swapping it into that vehicle, as it is likely not compatible. It may be possible to swap the 1NZ into that...

Q: How to check for power steering leak

The easiest way is using the UV leak dye. I've got a video "finding and fixing car oil leaks." You get a little UV leak dye and put maybe a tablespoon in the power steering, drive it around for about...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...