Two Technicians Are Discussing a Vehicle with an Overheating Problem

Two technicians are discussing a vehicle with an overheating problem. There are no leaks, internal or external. The belts are in good condition, and the radiator has been removed and flow tested. Everything appears to be in good condition. A new thermostat was installed, but it did not cure the problem. Technician A says the impeller could be slipping on the water pump shaft. Technician B says the impeller blades could be corroded. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Correct Answer:

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