Question about 1993 Buick Roadmaster

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Freeze Plugs I have a 1993 Buick Roadmaster and the water pump went out which caused it to run hot .I replace the water pump but now its leaking water from back of the engine. I was told told that I needed to change the freeze plug , well how exactly do I do that ?

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Freeze plugs are generally pried out and pounded in, although some are available that seal by squeezing a rubber piece between washers. Use 2 wrenches to tighten these. All generally available at auto parts stores.

The real problem is often getting to the leaking freeze plug. Some are on the lower sides of the block with plumbing and accessories blocking access. There are also some on the rear surface of the block, which usually require separating the transmission from the engine to replace.

Posted on Aug 30, 2008

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Could freeze plugs cause my Lincoln navigator 5.4l engaging leak water from back of engine and oil from the side of engine


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How to replace water pump on 1993 buick roadmaster


use a serpentine wrench and remove the belt. Remove the large fan. The water pump is right behind the big fan. Get a new one, use a gasket adhesive to help hold the gasket in place and place at least one bolt through the pump before you put it against the motor. Torque the bolts properly. Refill the antifreeze. IF it runs hot, bleed the radiator of trapped in the system.

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I gave you the wrong pump it was the water pump that was changed


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Water leak at back of block


we had the same problem on my 97 rodeo and thought the same thing but it so happens that there is a water tube that runs under the intake and has an o ring that over time gets hot and ends up dry rotting. which causes it to leak you wont be able to tell unless you remove the intake manifold and see. i had water filling up and running over the back of the motor which cause us to thing is was a freeze plug but in return it was a lot less work. though you might start here before you pull your tranny

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