This rebuild is guaranteed to restore your EPAS (electric power assist steering) to original factory specifications provided your hydraulic pump is running continuously (indicating a burned-out controller), or the motor sounds like a coffee grinder (bad bearings). We are unable to rebuild pump motors that are no longer running as these typically require armature rewinding. There is a 3 day turnaround on these rebuilds.

Most of these power steering pumps fail around 70k miles due to either burned out controllers or bad bearings. Another limitation of this motor is the commutator which lasts only about 140k miles. Therefore, depending upon how many miles you have on your car, a rebuild may or may not be a cost-effective option.

This quality repair includes the following work performed to your EPAS hydraulic unit:

Replacement of all power semiconductors with our proprietary devices to prevent future failure over the life of the motor and pump unit. Our rebuilt EPAS controllers will outlast multiple new units over the life of the car... potentially saving thousands.

New premium grade sealed ball bearings installed

Armature commutator cleaned and turned on lathe

Heavy duty conformal coating applied to all internal electronics to protect against brush dust contamination

Cleaning and corrosion protection of housing and castings.

2 year warranty.

3 day typical turnaround time in shop.

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Due to the popularity of this item, we are offering this rebuild only on eBay. Please visit our eBay Store to purchase this rebuild service. If you don't find it there, please call or email us.

EPAS Pump Removal Instructions
(click an image for full size)

1) Obtain security code for anti-theft radio (if applicable).

2) Disconnect battery Ground (GND) strap.

3) Be sure the ignition is switched OFF (also applies when connecting the battery).

4) Make sure all parts are absolutely clean before beginning work to avoid contamination of internal parts. Foamy Engine Brite engine cleaner from any auto supply store works excellent. Seal off pipe connections with plugs or a plastic bag and rubberband. Dirt must not be allowed to enter the system.

5) Using a large syringe or turkey baster, draw all fluid out of the power steering fluid reservoir and discard in an environmentally safe manner. Do not attempt to reuse this fluid.

6) Refering to diagram 1, release clip from intake pipe (1) on supply tank and release pipe.

7) Refering to diagram 2, disconnect small 3-wire connector (1).

8) Disconnect large 2-wire connector (2). Be careful as the plastic connector housing is thin and can break if forced. Connector slides straight out.

9) Refering to diagram 3, remove the high pressure pipe to power pack. It is attached with a M8 x 1.25 x 20 Screw as shown. Be sure to seal off the end with a plastic bag and rubber band to keep all contaminants out.

10) Refering to diagram 4, release the two bolts that secure the pump motor housing mounting bracket to the subframe.

11) Refering to diagram 5, remove the single nut securing the front mounting bracket to the subframe via the rubber mount and remove EPAS hydro unit with connected pipe. Remove the attached pipe by releasing the security clip. Keep all of these parts in a safe place and absolutely clean for installation of your rebuilt EPAS pump when you get it back.

12) Cap off both inlet and outlet ports on the pump. Use a clean plastic bag with tape if hydraulic plugs not available. Aluminum foil duct tape works well too.

13) Wrap the pump in many layers of pink ESD bubble wrap paying attention to additional layers of wrap where the 2 delicate elecrical connectors are. This will prevent them from being crushed by the weight of the pump during shipping. Use an oversize box providing at least 3 inches of space around your bubble wrapped pump and fill the voids with anti-static packing peanuts. Your EPAS pump motor has 2 advanced microprocessors which are sensitive to static electricity, so handle carefully and avoid touching the metal terminals in the motor connectors.

14) Send your pump to the following address:

ModuleMaster
2006 S Main St
Moscow, ID 83843