Question about 2000 Cadillac DeVille

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Power steering pump?

My 2000 Deville make a noise when there is no pressure on the steering wheel.  the slightest movement of the wheel it stops.  Power steering pump?

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Have you checked the fluid lately?

Posted on Aug 29, 2008

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3 Answers

Whats it mean when I hear a grinding noise when I steer either way?


it indicates that when the pump gears are placed under pressure /load that they are interfering with the pump housing or are not being held in the correct mesh situation
the situation of powers steering that when in the relaxed position ( no steering wheel movement) the valves are so placed that the oil is by passed straight back to the reservoir but any movement of the wheel closes those valves and diverts the oil to the cylinder/actuator and so power assists the steering
AT this point is when load is applied to the pump and the noise is heard
I would suggest that the pump be removed and inspected for wear on the idler gear shaft, wear on the tips of the teeth from contact with the housing
Mostly the best fix is a replacement pump because it the clearance between the teeth and the housing is excessive or scored then the full pressure will not be achieved

Feb 19, 2016 | 1997 Mercury Cougar XR7

2 Answers

Find out what is causing noise from full steering lock on right and left , from stationery positon


Depends on what the noise sounds like. Some noise can be normal if you are holding the steering wheel at full lock . That is the pressure from the pump pushing hydraulic fluid through the steering box. If it is usually loud at the slightest turn..could be bad steering pump , leaking hose, leaking seal at steering box, even a bad belt.

Feb 12, 2015 | Cars & Trucks

1 Answer

What is the power steering pressure


nil to very low until you turn the steering wheel. At this point the valves close and the pressure can go up to 2000psi until wheel movement stops and then it drops to original reading as the valves close off and allow the pumped oil to by-pass back to the reservoir.

Aug 30, 2014 | 2001 Pontiac Montana

1 Answer

Does dodge pu use any pressure control valve for power steering control


There is a pressure relief valve to prevent the pump locking up and destroying itself. You will hear it working when you hold the steering hard on full lock. Otherwise the fluid is recycled back to the reservoir through the valves until you turn the wheel and that upsets the valves which close off until the wheel movement stops and no fluid is let in or released until the wheel is again moved.

Apr 27, 2014 | 2000 Dodge Ram 1500 Truck

1 Answer

Toyota echo steering


There is a pressure relief valve in the pump that allows excessive pressure to bleed out and so not lock up the pump. This is spring loaded so I would be checking the spring tension as the noise may be the valve vibrating from repeated unloading of the pressure more rapidly than it should . It will go when the steering is being turned but will reappear when the wheel movement is stopped . As power steering pumps are the same as sump pumps ( 2 spur gears in a case ) they are mostly un repairable as when the case is worn there is excessive clearance between the teeth and the body and the teeth of the gears will have excessive back lash . As one gear is on a shaft and the other gear is driving from the pulley any misalignment will cause problems as the gears will tend to be out of mesh. It is always best to replace a pump with a new item and not reconditioned as they are seldom repaired correctly.

Feb 11, 2014 | Cars & Trucks

2 Answers

Whining when i press gas


normally, the only part of your automatic transmission that will make a whining noise is the pump. it usually whines when iether the fluid is low or more commonly when the transmission oil filter is getting plugged up.

the power steering pump will also make a whining noise too.

turn the wheel all the way to the right and hold steady pressure against the stop. this puts maximum force on the power steering pump and, if the power steering pump is the one making the whine, it will change the sound of it. (usually louder).

if the trans pump is making the whine noise, it should sound different in neutral compared to drive. this test will really only work if it make the noise without the vehicle moving. if it wont do it at idle hold the rpms at 2000 or so.

if you decide the noise is coming from the transmission, and the transmission filter has not been replaced (assuming you installed a used transmission), replace the filter by removing the oil pan.



oh and also, if it is the power steering pump you should be able to make it make the whining noise while the vehicle is stationary. if it wont make noise unless its moving its not the power steering pump.

Mar 23, 2010 | 2003 Chevrolet TrailBlazer

3 Answers

Steering wheel hard to turn when car is stopped and idling.


the power steering only turns good when your accelerating then the pump is bad .it will not build pressure unless the pump runs faster ,replace the pump its about $300 installed at a shop.please rank this thanks.

Jan 29, 2009 | 2000 Chevrolet Malibu

2 Answers

2001 Kia Rio. Noise when turning to the right


lift the vehichle to check for wheel bearing play apply pressure to the top and bottom of the tire in a rocking motion. any movement indicates bad wheel bearings or ball joints. watch for where the movement is

Jan 23, 2009 | 2002 Kia Rio

1 Answer

Cadillac 2000 Deville Power Steering Pump


TRY REPLACING BELT, POSSIBLE CHEAPEST OPTION...BUT SOUNDS LIKE TWO PROBLEMS
THOU BELT AND RACK???

Sep 16, 2008 | 2000 Cadillac DeVille

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