Water Pump: Testing and Inspection

2GR-FE COOLING: WATER PUMP: ON-VEHICLE INSPECTION

1. INSPECT FOR COOLANT LEAK

HINT
* Before performing this inspection, check that there is no coolant leaking from any parts other than the engine water pump assembly. If there are leaks, inspect those areas.
* Perform this inspection when the engine is cold.

(a) Visually inspect the engine compartment for the following conditions:

(1) There is a large amount of coolant in the engine compartment or on the underside of the hood near the V-ribbed belt.

(2) Liquid coolant is dripping from around the engine water pump assembly.

(3) The coolant level in the reserve tank assembly is below the low line and there are traces of leakage around the engine water pump assembly.

If any of the above conditions exist, replace the engine water pump assembly.

If none of the above conditions exist, perform the following inspection (inspection of the area around the engine water pump assembly).

(b) Remove the V-ribbed belt Removal.

(c) Separate the water pump pulley Removal.

HINT
Move the water pump pulley so that the drain plug can be reached.

(d) Inspect the area around the engine water pump assembly.

HINT
Check for deposits around the drain plug of the engine water pump assembly.

(1) Press a piece of paper towel against the drain plug or deposits on the lip of the drain plug and check that the paper towel is not wet.





Text in Illustration





If the paper towel is wet, replace the engine water pump assembly.

If the paper towel is not wet, thoroughly clean the area around the engine water pump assembly.

(e) Install the water pump pulley Installation.

2. INSPECT ENGINE WATER PUMP ASSEMBLY

(a) Turn the pulley and check that the water pump bearing moves smoothly and quietly.





If necessary, replace the engine water pump assembly.

(b) Install the V-ribbed belt Installation.