Question about 1995 Pontiac Bonneville

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Power steering not working on 95 bonneville

The power steering started to make a whining noise, i checked the fluid level and it was low. I topped off the fluid and the power steering stopped working all together. I replaced the power steering pump and when I fill it to the line it stops working. I took the pump back to the store and they replaced it with another one. this one does the same thing. I have flushed the system as it recommends in the instructions, replaced the lines, and since then I have found the potato valve in the pump is sticking. it seems like it works until after the engine gets hot and this is when it stops working. I drain all the fluid and start over it works until I fill it all the way. this has become an expensive problem.

Posted by ivynbilly on

  • Anonymous May 03, 2009

    that is the only thing that has not been replaced. I don't have much money left and I wanted to make sure.

  • Marvin
    Marvin May 11, 2010

    are u sure the rack and pinion isn't the issue here?

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5 Related Answers

Anonymous

  • 2 Answers

SOURCE: 1995 bonneville power steering fluid

i don't know why they make it so hard to find, but this diagram i found helps a lot! i searched for a long time and finally saw this online, hope it helps! http://www.bonnevilleforum.com/t213271/

Posted on Dec 21, 2008

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mac mcknight

  • 26 Answers

SOURCE: Engine running really rough...whine sound when it isn't.

The run rough problem is due a cyl.mis firing,it becaused buy a bad plug,plug wire,coil,or even the ing.module. the servive eng.light flashing is warning you that you have a cyl.misfire that can cause damaget to your catltic converter if you continue to drive it.with may lead to why you think you have a exhaust problem,it may be colgged.

Posted on Dec 27, 2008

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Anonymous

  • 191 Answers

SOURCE: How to diagnose 1999 Pontiac Grand Am Power steering problems

it could still be the pump is it making a whining noise,and does the fluid smell really burnt.jack the car up and put it on jack stands set the e-brake and chock the rear tires so it can not roll,then start the car and see if there is any binding the the steering rack if there is you will notice a small jump to the rack as the wheel is turned,or a shifting on the mounting bolts that hold the rack to the cross member.If the car goes down the road fine with out a bunch of shacking or wobbling then I think I would replace the pump and have the system thoroughly flushed.I hope this helps

Posted on Jan 04, 2010

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Anonymous

  • 68 Answers

SOURCE: Pontiac Grand Prix GT grinding and whining noise when turning...

If power steering fluid level is full and whine noise happens after engine and trans is warm and been driven for a while it could be a trans problem. This make and model trans is noted for having a sticking EPC(electronic pressure control) solenoid inside the trans. The trans controller detects an internal trans slip and starts jacking up line pressure which makes the trans pump whine, it sounds just like a power steering pump. When this happens it will also start shifting gears very hard. Take vehicle to a trans shop and have them check it, there will most likely be a code P1811-long shift, max. adapt met. This code means the controller has seen an internal trans component slipping and has jacked up the line pressure to the max position and the slip is still present. Unfortunately this is not a repair that can be completed at home as the trans needs to come out and apart.
Hope this helps.

Posted on Mar 11, 2010

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cool78259

ruben sanchez

  • 228 Answers

SOURCE: I have a 2004 Holden monaro and lately the

a few things will cause this to happen your power steering pump could be going out, the belt could

have stretched, this will happen with old age, make sure the belt is not brittle or has any cracks. the

belt could be slipping, or the belt tensioner may need to be replaced. one trick that i have learned and

i will pass it on to you. 1st disconnect the negative side of the battery. take a hard bar of soap any

cheap brand and rub it on the belt. if the belt has any cracks the soap will remove any noise if in fact

it is the belt. reconnect your negative. start your car. if the noise goes away just replace the belt.

good luck!

Posted on Feb 26, 2011

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hi robin.
The first sign of fluid leaking from the power steering is a pump whine, because the fluid is low, the pump will start to make a whine noise, especially when turning the steering wheel.
If you think you may have a car power steering leak, the first thing you should do is check the power steering fluid reservoir, if the fluid level in the reservoir is low, you just might have a leak in the power steering system.
Power steering fluid has a very distinctive smell, it smells like a burnt marshmallow, that is my opinion on the smell, and I'm sure you will not find that documented anywhere on the internet or any repair manual.

If you feel the steering in your vehicle binding up, or the power steering pump starting to make whine noise, it's a good sign your power steering fluid level is getting low or it's empty. Running the power steering pump with low or no fluid could be very damaging to the entire power steering system because metal particles from the pump enter the system and cause internal failure of the steering rack and to its valve body or to the steering gear box.

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hi Eva.
As you turn your steering wheel it is this fluid pressure that aids in turning the wheels of your car. ... If the pump impeller is trying to move power steering fluid and starts catching air bubbles it can cause whining noises and vibrations to occur.
Maybe you've heard it at a stop light. Maybe you've heard it as you pass a car on the freeway. Or maybe you've heard it in the parking lot at work when someone is leaving. The unmistakable whine of a power steering pump can make even the most confident mechanic wonder when that car will breakdown.
Power steering pump noise is a unique noise that your car may make and once you've heard it you always know what it is. The noise is a mix of a whirring and a whining and will always vary with the speed of your engine whether your car is driving or in park. This whining noise can be subtle or extremely loud and may be worse in colder weather, or right when you first start your car.
Power steering pumps are most often vain style centrifugal pumps that are tasked with pressurizing the power steering fluid and pushing it down to your power steering gear or rack. As you turn your steering wheel it is this fluid pressure that aids in turning the wheels of your car.
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or check this link out for more info on this matter.
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