Question about 1990 Chevrolet Lumina APV

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Need instructions on how to replace water pump on a 1990 checvy lumina avp

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The water pump is located on the right side of the engine. This is facing the car from the front. Remove the three bolts that connect the belt guard. They will need a 10mm socket or wrench.
Next, remove the belt. You can do this by reaching down under to the belt tension pully and lifting it up with a wrench. This will make the belt loose enough for you to remove it. Usually as in my case the belt was broken anyway. If so you can skip this step, but remember it when replacing the belt.

Next hold the water pump pulley with a block of wood or something that will keep it from turning. Remove the four bolts that hold the pulley on and take the pulley off. Next you must remove the 5 bolts that hold the water pump on. You will need a 8mm socket or wrench to do this.

After the bolts are removed you must pry the pump loose with a screwdriver or bar. The pump will come off. You must clean the old gasket material off the housing. Now you are ready to install the new pump.


Just do things in the reverse order and you will be done. Replace the belt and check for leaks, add antifreeze in needed. See how easy it was. Saved yourself a few dollars also.

Posted on Sep 24, 2009

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