I will be replacing the water pump on a 93 eldorado with a norstar. Are there any special tools needed and what is the procedure and anyting else that should be changed while your there?
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if you have the north star motor it on drivers side tward front grill, you will find a belt cover you need to remove an you'll need a special tool most auto parts stores will rent it to you for a small fee ,it likes a large socket ,if you have the new one you'll see how it fits in socket, using a rachet with socket place over water pump and turn a 1/2 turn to left and it's out ,replace in reverse ,take care not to disturb new o ring seal ,and don't use silicone to seal it , BUT general motors strongly suggest you do use some type of motor sealant , now for the bad news =these motors are very bad with over heating issues that have plaged the north star for years , if you drain antifreeze make sure you use air purge valves to remove any air from motor (purge valve looks like a brake bleeder screw ) or it will continue to over heat, im guessing that's why your doing this , if over heating is a problem take the time to go over all aspects of the cooling system =belts, flushing motor, cooling fans working correctly ,coolant filled, well I REALLhope this helps you ,good luck with it .
Woody
4.6 engines cadillac water pump front of the engine behind a cover.if you see thermostat housing you will see water pump drive belt you need a water pump tool to remove water pump.you can buy the water pump socket removal tool at any auto parts stores.
YOU NEED WATER PUMP TOOL J 38816-1A YOU REMOVE WATER PUMP BY TURNING THE TOOL CLOCKWISE.INSTALL NEW WATER PUMP WITH A NEW O - RING TURN TOOL COUNTERCLOCKWISE. UNTIL IT STOPS TORQUE AT 73 FT LBS.
Hello bugzdagr8: My name is Roger and I will answer your question. Yes you do need a special tool to remove the water pump. The GM tool number is J38816-1A. You should be able to get one from a tool dealer. Snap-on ,Mac or Matco sales them. Most parts stores sell them also. The water pump has a lock plate that must be turned. Please rate the quality of your answer. This is how we know you received the correct answer.Should you need more help please just ask. Thank You for using FixYa. Roger
There is a special tool necessary to remove the water pump. You can purchase it from NAPA for $40.00 or email me for a discount on the tool at [email protected]
Additionally, you will needa 3/8 socket wrench as well.
Hello, look on the left (driver side) front of the engine, you will see at the end of the closest to you, on the cylinder head, a pulley. This pulley runs your water pump, by a belt connection. Check and see if that belt is on.
If you are adding water, you should have it pressure tested, as it could be the water pump(which takes a special tool to replace) or a bad head gasket.
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