Question about 2002 Nissan Altima

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STEERING FAILURE i experienced a sudden loss of steering assist--what is the most likely cause?

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As Long as Your Serpentine Belt, (SINGLE MAIN DRIVE BELT) si in tact. I Believe you Would Know Otherwise as You would Not have Charge for Battery, And No Cooling system, Among other functions, Lights In Information Cluster Would Indicate All These Failures. First Culprit is Power Steering PUMP<<((( Check Fluid Level First If it is Low Or Empty "You Have A LEAK " Refill and Quickly Look Under Engine Compartment for Leakage, Have A Helper Turn Steering wheel if Power Assist Returns "You Have A Leak"If WHILE TURNING steering Wheel You See A Significant Amount of Fluid Pouring out This Would Indicate A "High Pressure Hose" LEAK))) IF you Have NO LEAKAGE the Problem Most Likely Resides in The Power STEERING PUMP OR The RACK This Can Be Determine By A Shop Equipped With Pressure Testing Gages.Hope this Leads you In the Right Direction, NOTE : A Hose Can Posibly Be A Do it your Selfer Beyond that Use your Own Judgment as I Dont Know Your Skill Level, Again I wish you Luck and Hope tou can Take care of this Without Getting ROBED by A Shop, If you Find This Info to Be Valuable to you Plaese RATE Me Accordingly Thank You And Have A Great Evening, RejakWilson

Posted on Feb 02, 2009

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Bad power steering pump or rack or the belt came off. Pumps or racks will give you warning, belts will not.

Posted on Feb 02, 2009

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1 Answer

My van is having a hard time turning, would this be the power steering pump going out and if so how can I fix my 1998 Mercury villager


It could be or the steering rack . The power steering system uses a CII type power steering pump (3A674) and a power rack and pinion steering gear.

If you never replaced either of these parts before suggest you take to a ASE certified repair shop .
Pump Flow and Pressure Tests Before performing pump flow and pressure test, complete the following checks for conditions which could cause loss of power assist. Take corrective action if necessary.
  1. Check power steering oil reservoir (3A697) for proper fluid level.
  1. Check tires for correct air pressure.
  1. Check drive belt (8620) for proper tension.
  1. Check power steering pump (3A674) for correct model and vehicle application.
  1. Check for correct size power steering pump pulleys (3A733) on power steering pump and engine.
  1. Check entire system for damage. Replace parts, if necessary.
If the above items are correct, or have been corrected, and the loss of assist still exists, test power steering pump flow and pressure to determine whether the trouble is in the power steering pump , power rack and pinion steering gear or hoses.

Oct 20, 2015 | Mercury Cars & Trucks

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Sudden Loss of power steering whilst driving. No symptoms, noises, etc. before hand. Power steering fluid level is normal.


is the drive belt of the power steering pump intact, if the loss of assistance was immediate and the fluid level is okay it is almost certain you have lost the belt , or the tension in it has drastically dropped

Jun 01, 2015 | Cars & Trucks

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I own a 2005buick lacrosse I was driving in snow and I was doing donuts (don't ask) now my steering wheel is extremely hard to turn, what could it be and is it easily fixable"


putting all the variables together( splashed up snow, high rpms, quick actions of the steering wheel requiring constant pump pressure and the sudden loss of power assist) I would suspect that the power steering belt is loose or missing or needs replacing

Nov 22, 2014 | 2005 Buick LaCrosse

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2000 Grand Caravan, backing up from parking lot and experienced sudden and complete power steering loss. I possibly heard/felt a faint pop before it went. Definitely not the serpentine belt, and not the...


Hi Lisa, I'm not certain, but it is possible that the power steering has a separate belt. If the fluid level has remained constant and there are no noticeable leakages, a broken belt is the most likely cause. Regards John

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1 Answer

Power steering problem is hard and dont find the power steering pomp


These vehicles have electric power steering. There is an electric motor under the steering column that provides the power steering assist. GM also had a special policy coverage on this motor as it has been notorious for causing the problems you are describing. Read on:

Some customers of 2004-2007 model year Saturn ION vehicles, equipped with electric power steering, may experience a sudden loss of power steering assist, which could occur at any time while driving the vehicle. If the power steering assist is lost, a chime will be heard and the Message Center will display a "PWR STR" warning message. The vehicle can still be steered in a safe manner but will require greater driver effort at low vehicle speeds or when stopped. Typically, the next time the vehicle is started, the power steering assist will return and the "PWR STR" message would no longer be displayed..................
This special coverage covers the condition described above for a period of 10 years or 100,000 miles (160,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership.
Retailers are to replace the power steering motor. The repairs will be made at no charge to the customer.

Aug 05, 2011 | 2004 Saturn ION

1 Answer

The steering in my 98 Buick Century is hard to turn at low speeds. Is this a steering pump issue or the rack and pinion?


Your PS pump is fine.

This vehicle has:

Variable-assist power steering: A power steering system that uses valves and speed sensors to vary the amount of steering assist according to engine or road speed. At slow speeds more steering assist is delivered and steering the wheels is easier; necessary for parking, etc.. At higher speeds, steering assist is reduced and more steering effort is required to steer the car, giving the driver greater feel of the road. Also known as Speed-sensitive power steering.

Loss of current to the magnetic coils would cause a loss of power assist at low speed. Coil resistance can be checked with an ohmmeter, and should read about two ohms. An infinite (open) reading indicates a bad coil (requires replacing the rack since the coils are not serviceable). Checking for shorts between both sides of the coil assembly and rack housing is also recommended.

Best wishes

Jan 01, 2011 | 1998 Buick Century

1 Answer

How 2 replace intermediate steering shaft,Healp!!


The front wheels of the vehicle must be maintained in the straight ahead position and the steering column must be in the LOCK position before disconnecting the steering column or intermediate shaft. Failure to follow these procedures will cause improper alignment of some components during installation and result in damage to the SIR coil assembly. 1. Raise and support the vehicle. 2. Remove the stabilizer shaft. 3. Remove the tie rod ends from the steering knuckles. Caution: Failure to disconnect the intermediate shaft from the rack and pinion stub shaft can result in damage to the steering gear and/or intermediate shaft. This damage can cause loss of steering control which could result in personal injury. Notice: The front wheels of the vehicle must be maintained in the straight ahead position and the steering column must be in the LOCK position before disconnecting the steering column or intermediate shaft. Failure to follow these procedures will cause improper alignment of some components during installation and result in damage to the SIR coil assembly. 4. Disconnect the steering intermediate shaft from the steering gear.

Dec 12, 2010 | 2000 Pontiac Grand Prix

1 Answer

Suzuki Vitara 2006 Poer Steering Sudden Loss


some power steering system is computer control. if you disconnect battery the control module have to be program.the control module uses vechicle speed sensor and steering wheel rotation sensor.to operate an actuator in the power steering pump to control pump pressure and steering assistance.

May 24, 2009 | 2006 Suzuki Grand Vitara

2 Answers

Power steering failure


Problems with electronic variable-assist systems include all of the same things that can go wrong with a conventional power steering system (leaks, center wear in the steering gears, pump & hose failures, etc.), plus problems with the control electronics including the vehicle speed sensor circuit, the solenoid valve and control module. Accurate diagnosis, therefore, is essential to minimize warranty returns. Most of these systems provide diagnostic fault codes that can be accessed with a voltmeter, test light or scan tool to pinpoint the nature of the fault (if the fault is electronic rather than mechanical or hydraulic).

If power to the solenoid or control valve actuator is lost, the valve keeps the bypass circuit closed so full power assist is provided under all driving conditions. The only indication of trouble, therefore, might be a loss of road feel and/or increased steering sensitivity at highway speeds.

It’s important to remember that variable-rate power steering only reduces the amount of pressure that reaches the steering gear at higher road speeds. The only way it could reduce power assist at low speed would be in the unlikely event the actuator or solenoid valve failed in the open position. This could cause a noticeable reduction or loss of power assist.

On GM’s Magnasteer racks, loss of current to the magnetic coils would cause a loss of power assist at low speed. Coil resistance can be checked with an ohmmeter, and should read about two ohms. An infinite (open) reading indicates a bad coil (requires replacing the rack since the coils are not serviceable). Checking for shorts between both sides of the coil assembly and rack housing is also recommended.

The system does have self-diagnostic capability, but there is only one fault code: C1241 (Magnasteer circuit malfunction). The code is set if the module detects an open or a short in the coil circuit. If this code is present, the Magnasteer system is disabled and will not vary the steering effort as vehicle speed changes. The C1241 body code can be read with a Tech 2 or equivalent scan tool. The Tech 2 tool can also be used to perform a Magnasteer function test. The test varies the current to the coil so you can check for a change in steering effort when turning the steering wheel.

Replacement racks for variable-assist power steering applications are available with or without an EVO control solenoid. As long as the original EVO control solenoid is working OK, it can be removed and installed on the replacement rack to save your customer a few bucks. There’s no need to replace the whole rack if only the EVO solenoid valve is defective.

On GM Magnasteer applications, the whole rack must be replaced if the rack or control unit is defective because the Magnasteer unit is part of the rack. Handle with care because the permanent magnets inside the Magnasteer valve assembly and connector are fragile and can be easily damaged.

Good luck and hope this helps you understand the Steering system on your STS to save you some money on what to look for and what to look out for if your going to have a auto shop repair it. Such as the Valve is replaceable and it may just be a bad wire connection.



May 22, 2009 | 2002 Cadillac Sts

2 Answers

Power steering failure jaguar s-type 3.0se


Is there fluid? is there NO power steering or just very little assist? There is an electrical connector on the steering rack that if not plugged in will cause very little power steering assistance

Jan 26, 2009 | 2000 Jaguar S-Type

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