1990 Olds 98 RegencPower steering suddenly lost power.

I wouldn't think it would be a direct replacement as they are two different platforms, but I'm sure it can be made to work. I once installed a power bench seat out of a 2004 dodge truck into my 1991 Dodge truck that didn't come with a power seat. Took some wiring and engineering, but turned out nice.

If you follow this link you will see where the Speed Sensor is for a 1990 Honda Accord https://www.google.ca/search?q=1990+Accord+Speed+Sensor+location&safe=off&biw=1536&bih=682&source=lnms&tbm=isch&sa=X&ei=-bPaVMCbBIHwoASn9YGIDw&ved=0CAgQ_AUoAQ

ELECTRIC POWER STEERING (EPS)
The TSX uses Electric Power Steering (EPS) which regulates steering via a computer-actuated electric motor. With the computer-controlled system, advanced algorithms built into the operating software allow for continuous fine-tuning of the steering assist forces so that minimal force is required at low speeds- such as when parking or maneuvering. Conversely, progressively higher steering effort is generated at higher speeds (such as when driving on the freeway) to deliver a sport-minded driving experience.
The EPS system found in the TSX is an evolution of an earlier EPS system found on the Acura NSX supercar. Its key features and advantages include:

• The EPS system reduces the steering effort at low speeds, improving agility and ease of effort when parking or maneuvering in tight areas
• Rigidity of the steering mount is higher, which allows a more precise and "connected" feel during high-speed maneuvers (such as during lane changes or when on winding mountain roads)
• The EPS steering assist incorporates computer algorithms based on vehicle speed rather than engine speed, allowing TSX engineers the flexibility of tailoring the steering feel to match actual driving conditions- especially high-speed driving. The EPS steering algorithms incorporate steering assist changes for every 0.6 mph.
• The EPS system is different (and uniquely tuned) for each of the TSX models: 2.4L I-4 sedan, 3.5L V-6 sedan, and the new Sport Wagon.
• EPS employs a sporty, 13.5:1 steering ratio which further improves performance driving agility
• In its evolution from the original NSX system, the TSX's EPS system uses a significantly more powerful electric motor teamed with a far more sophisticated microprocessor
• By eliminating the conventional power steering pump assembly, EPS uses less engine power which improves acceleration and fuel efficiency

it is an electric pump without a pulley or belt or fluid apparently

What's type of vehicle do u have .

power steering has pressurized hoses they need to be replaced with power steering hoses,if its the reservoir i suggest getting used from scrap yard, and your fan motor is dying you will soon lose high speed to for changing these products i suggest getting a manual like chiltons, from canadian tire or most auto parts dealers

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

The power steering pump is on the way out unfortunately........the pump runs off a fan belt that runs off the crankshaft....as the engine turns faster (higher revs), the higher revs the pump pulley makes, and the faster it pumps......however if there is an internal leakage, then the pump will be less efficient at low revs....

I hope this helps

Review this Wiring Schematic about Olds 98 ('89, '90 & '91):
1989 1
1989 2

1990 1
1990 2

1991 1
1991 2

I really hope help you with this (remember rated this help). Good luck.

your power steering and alt. belt come off.. the same belt runs both of this things.. check to see if the belt is there.. good luck keith..

It is possible that the pump is failing...even though it is quiet. It could also be that the steering rack inner seals have lost their effectiveness. When the fluid heats up, it gets thinner, and it is more likely to leak past worn seals, which you undoubted have somewhere. But after 300,000 miles...you can't complain to GM. Those cars are about as bullet proof as they come. Good luck.