Question about 1988 Mercury Grand Marquis

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How to replave steering gear box pitman seal on a '94 grand marquis or a link to online repair diagrams

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The easiest way is also the messiest.
Remove pit-man arm nut,Mark the pit-man arm and shaft with a colored marker,to assure you reinstall the arm in the correct position.use a pit-man arm puller to remove pi-man arm.When you get off the shaft,swing it out of your way,leaving the other end connected.Looking up in the steering box you will see a snap ring that you need to remove.When you get it out of there,reinstall the pit-man arm and nut to the correct position but don't tighten completely.Now refill the power steering box with fluid and put the cap back on the steering box.Put a pan under the pitman arm to catch the fluid.Start the engine and turn the steering in one direction as sharp as it will go,you'll here it in a bind but hold it tight,Then turn the steering wheel the complete opposite direction and turn it tight.This will use the power steering to blow the seals out!
Shut engine off,look under car and your seals will be pushed out but held in place by the pitman arm you reinstalled.Now you can remove the arm and REMEMBER how they came out,just incase there is no picture instruction with your new seal kit.

Posted on Nov 18, 2009

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I have a leak in my steering gear on my 2003 chevy silverado


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How to install a new steering gear box on a 1998 Grand Marques?


Removal & Installation

  1. Disconnect the negative battery cable.
  2. Remove the stone shield.
  3. Tag the pressure and return lines so they may be reassembled in their original positions.
  4. Disconnect the pressure and return lines from the steering gear. Plug the lines and ports in the gear to prevent the entry of dirt.
  5. Remove the clamp bolts retaining the flexible coupling to the steering gear.
  6. Raise and safely support the vehicle.
  7. Remove the nut from the sector shaft.
  8. Remove the pitman arm from the sector shaft with a suitable pitman arm removal tool. Remove the tool from the pitman arm.
  1. Support the steering gear and remove the steering gear retaining bolts.
  2. Work the gear free of the flex coupling and remove the gear.
  3. If the flex coupling did not come off with the gear, lift it off the shaft.
To install:
  1. Turn the steering wheel to the straight-ahead position

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During installation, position the steering gear input shaft as shown on 1992-98 vehicles

  1. Center the steering gear input shaft with the indexing flat facing downward on 1989-91 vehicles. On 1992-98 vehicles, center the steering gear input shaft with the centerline of the 2 indexing flats at 4 o'clock.
  2. Slide the steering gear input shaft into the flex coupling and into place on the frame side rail. Install the retaining bolts and tighten to 50-65 ft. lbs. (68-88 Nm).
  3. Make sure the wheels are in the straight-ahead position. Install the pitman arm on the sector shaft and install the lockwasher and nut. Tighten the nut to 233-250 ft. lbs. (316-338 Nm).
  4. Move the flex coupling into place on the steering gear input shaft. Install the retaining bolt and tighten to 20-30 ft. lbs. (27-41 Nm).
  5. Connect the pressure and return lines to the steering gear and tighten the lines. Fill the reservoir and turn the steering wheel from stop-to-stop to distribute the fluid. Check the fluid level and add fluid, if necessary.
  6. Start the engine and turn the steering wheel from left to right.
  7. Check for leaks.
  8. Install the stone shield.

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