Like any other car or vehicle, the Geo Metro, a compact car, is fitted with a water pump. This pump serves as the central unit responsible for efficiently coursing cooling fluid all around the engine block. In effect, without a functional water pump doing this the engine will soon overheat, which can lead to other serious damages to the other working parts of the car. The symptoms of the water pump installed in the vehicle will be recurring overheating and leaks. If these symptoms come up, then you will definitely have to replace the faulty water pump with a new one. Here are the steps to do this.
- Remove the old pump. The steps to get to the water pump assembly are numerous and begin with the disconnection of the battery. Once that is done, raise the front of the car by using jack stands on both wheels. That done, remove the drain plug and drain the radiator of its contents. Make sure that the used coolant trickles into a container. Once properly drained, you can proceed with the disassembling of the other parts in order to access the water pump. In the correct sequence, you will have to disassemble and disconnect the splash shield, the belt of the A/C compressor, the drive belt, the crankshaft pulley, the coolant pulley, the timing belt, the oil dipstick, the guide tube of the dipstick, and finally, the alternator bracket. With all that removed, you can now access the water pump. To remove it from the engine block, simply unscrew all the bolts keeping it in place. Remove the pump as well as the gaskets attached to it. Discard these properly and wipe the area of the engine block where the old pump used to be.
- Installing the new Geo Metro water pump. Take the new pump out from its packaging as well as the gaskets accompanying it. Apply high temp sealant to the pump and gasket as well as the engine block area where the pump will be installed in. As one single piece, gaskets and pump, attach the new pump onto the engine block. To secure the water pump assembly in place, screw in all the mounting bolts relevant to it. The appropriate torque for tightening these bolts should be at around 115 foot-pounds. To accomplish this, use a torque wrench.
- Reinstall all the other parts. Once the water pump is flushed into the engine block, start reinstalling all the parts you removed previously in the opposite order. Start with the last part you removed and work your way to the first part you disassembled.
- Fill the radiator. Once all the removed parts are back in place, insert the drain plug back into the radiator. Fill the radiator up with high quality coolant, the same type you used previously. Seal the radiator with the cap and lower the entire vehicle.
To test if the installation was a success, connect the battery cable and start your engine. Leave it running for several minutes and examine the various parts you reinstalled for leaks or problems. Make sure to monitor the vehicle’s temperature as well.