Question

A says that air trapped in the cooling system can cause overheating and a cracked cylinder head.

B says on some engines you can unscrew the coolant temp sender to bleed the air out of the system

-A
-B
-Both
-Neither

Answer 1

Air trapped in the cooling system can cause overheating and a cracked cylinder head. In some engines, you can unscrew the coolant temp sender to bleed the air out of the system.

Step-by-step explanation:

Both A and B are correct.

Air trapped in the cooling system can indeed cause overheating and a cracked cylinder head. When air is trapped, it prevents proper circulation of coolant, leading to ineffective cooling of the engine. This can result in the engine overheating and causing damage to the cylinder head, which is an important component of the engine.

In some engines, you can unscrew the coolant temp sender to bleed air out of the system. The coolant temp sender is a sensor that measures the temperature of the coolant. Unscrewing it allows air bubbles to escape and helps in removing trapped air from the cooling system. This helps in maintaining proper cooling efficiency and prevents overheating.