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Question:

How to replace water pump on a 93' Mustang 5.0?

I would like to know how difficult it is to change a water pump on my mustang? Is it something I can do by myself? I do know about cars and can perform general maintenance, I am not totally ignorant to whats going on underneath the hood of my car I'm just not sure if I have the tools needed and how difficult it is to do. What tools do I need? Do I need a torque wrench? If anyone can help me out I would appreciate it. Thanks!

Answer:

It's not hard, just time consuming. You will need BOTH metric and standard size sockets deep sockets and/or wrenches. For the tensioner pulley you only need 18mm closed-end wrench and you can pull upwards on the tensioner to release tension on the belt. Use a brand new water pump. Do not EVER use a remanufactured water pump. With a new pump you will have a lifetime warranty from any of the popular brand name auto parts stores. For the water pump the battery being disconnected is not required. That is required depending on the car you're working on, but on a 5.0L Mustang it's not. Be sure to stop by Walmart or parts store and pick up a tube of Permatex Blue RTV. Apply a thin bead of RTV on the gasket mating surface then put the gasket on. Don't do this until you're ready to put the pump on. Be sure to use a good scraper to remove old gasket material from the gasket mating surface of the timing cover. DO NOT USE A TORQUE WRENCH ON WATER PUMP BOLTS ON A 5.0L MUSTANG. These bolts are very hard to find now. You only need to snug them at first and then hand tighten them. The factory bolts are notorious for corroding and becoming stuck in the block after their heads snap off. Do not turn the bolts too quickly and be sure to clean them off with a wire brush if they have ANY corrosion and spray them with lubricant before reinserting.
sable wasn't a real bad car for the most part. Personally I am not a ford man but if the vehicle has buckets of rust and lots of miles then yes this water pump is the sign of what's to come. Breakdowns that is.
This is a straightforward task that can be difficult for the novice, but it's not impossible. You will need basic automotive hand tools, wrenches, sockets in metric. Also, you will need a good shop manual for this car. A torque wrench is optional, most professional mechanics don't torque the fasteners involved with this job. Take pictures of the engine from various angles, it will help in reassembly. Don't forget to disconnect the battery also. Be certain to draw a diagram of how the serpentine belt(s) are routed around the pulleys, if no such aid exists on the radiator support. By all means buy a reputable brand NEW pump, don't bother with a rebuilt unit. With some mechanical knowledge and basic common sense you can do this, take your time, don't rush. Good Luck !

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