Question

A says that a soft or gummy heater hose may be caused by a missing exhaust manifold heat shield.

B says that a brittle or hard lower radiator hose may be caused by engine oil leaking onto the hose

-A
-B
-Both
-Neither

Answer 1

A soft or gummy heater hose is not caused by a missing exhaust manifold heat shield, and a brittle or hard lower radiator hose is not caused by engine oil leaking onto the hose.

Step-by-step explanation:

A says that a soft or gummy heater hose may be caused by a missing exhaust manifold heat shield. This statement is incorrect. A soft or gummy heater hose is typically caused by the breakdown of the hose material due to heat and aging, not by a missing heat shield.

B says that a brittle or hard lower radiator hose may be caused by engine oil leaking onto the hose. This statement is correct. Engine oil leaking onto the lower radiator hose can cause the hose material to deteriorate and become brittle or hard.

Therefore, the answer is: B - Neither A nor B.