Genuine Mercury Mariner Power Steering Pump

Mercury Mariner Power Steering Pump Parts Questions & Answers

• Pump Assy - Power Steering
  6L8Z-3A696-BA
  Q: How to remove and install a power steering pump on Mercury Mariner?

  A: Disconnect the cable from the negative battery terminal. Using a large syringe or suction gun, suck as much fluid out of the power steering fluid reservoir as possible. Place a drain pan under the vehicle to catch any fluid that spills out when the hoses are disconnected. For a four cylinder engine, remove the drive belt. Disconnect the electrical connector at the power steering pump. Unscrew and remove the bolt securing the high pressure fluid line support bracket. Using a flare-nut wrench, unscrew the pressure line fitting from the pump. Disconnect the supply hose from the power steering pump. Unscrew and remove the four mounting bolls, and withdraw the power steering pump from its bracket. The pulley can be removed on the workbench, using a pulley removal tool. For a V6 engine, remove the ground wire. Loosen the right front wheel lug nuts. Raise the front of the vehicle and support it securely on jackstands, then remove the wheel. Install the wheel and lower the vehicle to the ground. Support the engine with a floor jack and block of wood. Remove the pulley from the power steering pump. Disconnect the fluid return hose from the pump, allowing the fluid to drain into a suitable container. Unplug the electrical connector from the power steering fluid pressure switch and remove the bolt securing the pressure line bracket. Disconnect the power steering pressure hose from the pump, allowing the fluid to drain into a suitable container. Use two wrenches; a backup wrench to hold the fitting on the pump tube, the other to loosen the fitting. Under the power steering reservoir, remove the refrigerant line bracket-to-body nut. Remove the upper engine mount. Unscrew the power steering mounting bolts, then remove the bracket and the pump. Installation is the reverse of removal, noting the following points: Tighten the bolts and unions securely. The O-ring on the high-pressure outlet should be replaced. Use a special tool or a tapered tube to slide the new O-ring onto the pipe union. On 3.0L V6 models, when installing the engine mounts. Install the drive belt. After you've reconnected the battery, the Power/rain Control Module (PCM) must relearn its idle and fuel mixture trim strategy for optimum driveability and performance. Fill the power steering reservoir with the recommended fluid. Bleed the power steering hydraulic system.