Technician A says transmission fluid overheating can be caused by a defect in the engine cooling system. Technician B says transmission cooler leaks can be diagnosed by removing and plugging the radiator hose inlet and outlet, then pressurizing the radiator with 50 to 70 psi of shop air while checking for bubbles in the transmission fluid. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because the transmission fluid can overheat if the engine cooling system, which often includes a cooler for the transmission fluid, is not working properly. Technician B's method is incorrect for diagnosing transmission cooler leaks; the correct approach typically involves inspecting the cooler and its connections for leaks, not pressurizing the radiator in the manner described.

Technician a Says Transmission Fluid Overheating Can Be Caused by a Defect