Chevrolet 12681417 Water Pump Kit

You can Select Your Vehicle to check if 12681417 fits your vehicle.

To remove the 4.3L V6, 5.3L, and 6.2L V8 engines, start by disconnecting the cable from the negative terminal of the battery. Then, drain the coolant and remove the air intake duct and resonator assembly. Next, remove the drivebelt and center the water pump pulley holes over the water pump mounting bolts. Remove the water pump and gasket from the coolant manifold, and clean the mounting surface on the engine and water pump. Clean the mounting bolt threads and threaded holes if necessary. Compare the replacement pump with the old one to ensure they're identical. Place the gaskets and water pump into position, and tighten the bolts to the torque specification. The remaining installation steps are the reverse of the removal procedure. Refill the engine with coolant, run the engine, and check for leaks. For the 6.0L V8 removal, follow similar steps, but also remove the fan, fan clutch, water pump inlet hose, water pump outlet hose, and coolant air bleed hose if necessary. Remove the thermostat housing if a new water pump is to be installed. Unbolt the water pump, clean the mounting surface, compare the replacement pump, and install the gaskets and water pump. Tighten the bolts, complete the remaining installation steps, refill the engine with coolant, run the engine, and check for leaks.

A failure in the water pump can cause serious engine damage due to overheating. If a failure occurs in the shaft seal on the water pump, a coolant leak can usually be seen coming from that area. Most water pumps are equipped with small weep or vent holes that can be checked for leaks using a flashlight and a mirror. If the water pump shaft bearings fail, there may be a howling sound near the water pump while it's running. A quick water pump performance check is to turn the heater on. Removing and installing a water pump on a V6 or V8 model involves disconnecting the battery cable, draining the coolant, removing the air intake duct and resonator assembly, removing the drivebelt, removing the water pump pulley, removing the radiator hoses and expansion tank hose (V6) or water pump inlet and outlet hoses (V8), unbolt the water pump, and removing all traces of the old gasket seal from the mounting surface on the engine and water pump. Installation involves cleaning the mounting bolt threads and threaded holes, comparing the replacement pump with the old one, placing the gaskets and water pump into position, tightening the bolts to the torque specifications, and refilling the engine with coolant and checking for leaks.

Water pump failure can lead to overheating and serious engine damage. There are several ways to check the operation of the water pump while it is installed on the engine. If any of these checks indicate problems with the water pump, it should be replaced immediately. One indication of a problem is a leak from the weep hole in the water pump snout, which indicates a failed seal. Another sign is a high-pitched squealing sound coming from the water pump, which indicates a failed shaft bearing. Excessive bearing wear can be identified by attempting to move the water pump pulley horizontally or vertically. Additionally, the effectiveness of the water pump can be checked by removing it for examination, as the impeller fins may corrode away. To remove the water pump, the battery cable must be disconnected, the coolant drained, and the air filter duct and radiator shroud and fan/clutch assembly removed. The drivebelt and coolant hoses connected to the pump must also be disconnected. On inline engines, the water pump pulley must be removed. The water pump can then be unbolted, and if necessary, tapped with a soft-face hammer to break the gasket seal. The pump's impeller blades should be inspected for corrosion, and if any fins are missing or badly corroded, the pump should be replaced. The sealing surfaces of the water pump and block should be cleaned of all gasket material, and the mating surfaces should be wiped with a rag saturated with lacquer thinner or acetone. To install the new water pump, a thin layer of RTV sealant should be applied to both sides of the new gasket, and the gasket should be installed on the water pump. The water pump can then be placed in position and the bolts tightened to the specified torque. The pulley should be installed and the bolts tightened to the specified torque. The remainder of the installation process is the reverse of removal. Coolant should be added to the specified level, the engine should be started, and the coolant level should be checked. The cooling system should be bled, and coolant leaks around the water pump and hoses should be checked for.

To replace the water pump, various components such as the air cleaner assembly, radiator shroud, fan/clutch assembly, and drive belt must be removed.

If the water pump shaft bearings fail, there may be a howling sound near the water pump while it's running.

There are several ways to check if the water pump is functioning properly.

If the water pump shaft bearings fail, there may be a howling sound near the water pump while it's running.

Clean the sealing surfaces of the water pump and block of all gasket material, and wipe the mating surfaces with lacquer thinner or acetone. Apply a thin layer of RTV sealant to both sides of the new gasket, and install the gasket on the water pump.

Water pump failure can lead to overheating and serious engine damage. There are several ways to check the operation of the water pump while it is installed on the engine. If any of these checks indicate problems with the water pump, it should be replaced immediately. One way to check is to inspect the weep hole in the water pump snout for coolant leakage, indicating a failed seal. Another way is to listen for a high-pitched squealing sound coming from the water pump during engine operation, indicating a failed shaft bearing. Excessive bearing wear can be identified by attempting to move the water pump pulley horizontally or vertically. If it can be moved, the bearing is nearing the end of its service life. Additionally, the effectiveness of the water pump can be checked by removing it for examination, as the impeller fins may corrode away. To replace the water pump, the coolant must be drained and various components such as the air cleaner assembly, radiator shroud, fan/clutch assembly, and drive belt must be removed. The specific steps for removal and installation vary depending on the engine type. After installation, coolant should be added to the specified level, the engine should be started, and the coolant level should be checked. It is important to bleed the cooling system of air and check for any coolant leaks around the water pump and hoses.

A quick water pump performance check is to turn the heater on.

12681417 come with all the parts coolant use part# 12346290 per vin#