Question about 1993 Cadillac Eldorado

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How do i change the water pump in a 93 cadillac el dorado

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  • Mark Carrington
    Mark Carrington May 11, 2010

    Do you have the northstar engine?

  • Anonymous Mar 22, 2014

    pulling out old core and replacing

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  • 192 Answers

I am going to assume you have the northstar engine.

First of all,you need the removal tool which looks like this.

http://www.etoolcart.com/gmnorthstarwaterpumpsocketast7880.aspx


You need to remove the air filter housing and ducting to gain easy access to the pump.

Remove the shield covering the pulley and belt. The belt is easily removed by levering the tensioner pulley.

The water pump is located at the lower radiator hose manifold where you will also find the thermostat.Remove the manifold cover and you will see the water pump.

Insert the removal tool over the pump making sure it is locked in position.You will need to use a breaker bar on the removal tool and turn the tool CLOCKWISE to release the pump (1/4 turn), or if you imagine the breaker bar being vertical, push towards the windscreen of your car,it takes quite a bit of force to unseat the pump hence the use of a breaker bar.

Installing the new pump does not require as much torque as removing the old one.Tighten the new pump to 73 ft.lbs. making sure it is seated properly before tightening.

Don't forget to clean out the water pump housing prior to installing the new pump and don't forget to include a new water pump gasket and housing cover gasket.

It is also a good idea to install a new thermostat while you're at it.

Posted on Sep 11, 2009

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