Monday, January 7, 2013

How To Replace A Pontiac Grand Prix Power Steering Pump

     Is your power steering pump making groaning or grinding sounds? Does it leak out of the back of it? It may be time to have it replaced before it completely goes out on you and becomes unsafe. Replacing your own power steering pump is something that you should be able to do in very little time and with just a few tools. These instructions are for the 3.1 liter engine.

- First you will need to make sure the car is cooled off enough to work on it and disconnect the battery. Now remove the serpentine belt.

- Next, disconnect the alternator wiring and start removing the bolts holding the alternator to it's mounting bracket. You may be able to get away with removing the pump without removing the alternator but not always.

- Now, using a 15mm socket, remove the bolts holding the alternator mounting bracket on. This has to be removed to gain access to the power steering pressure and return hose fittings. Once you have access to them, go ahead and remove them from the pump. You will lose some power steering fluid so be ready with a container and some shop rags.

- Using a 13mm deep socket, go through the holes in the power steering pump pulley and remove the three bolts holding the pump in place. Remove the pump. On some models you may have to remove the fuel rail test port cap to get the pump out.


- Install the new pump and bolt it down. Torque the bolts to 25ft-lbs. If you are using a new pump, transfer the pulley over to it from the old pump. Most new pumps do not come with the pulley installed so you will need to use a pulley puller to remove and install the pulley.

- Connect your power steering pressure and return hoses and fill the power steering reservoir to the desired level with new, clean fluid.

- Re-install the alternator bracket and install the alternator. Make sure to re-connect the alternator wiring harness and power lead.

- Re-install your serpentine belt and connect the battery.

- Bleed the power steering system and refill the fluid to the correct level.

     That shouldn't have taken long and now you have saved a bunch of cash. Take care to connect your hoses and position them so they won't bind or get pinched. Make sure and check for leaks before you drive it.
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