Could my car overheated because transmission fluid changed Also have you ever heard of replacing the water pump thermostat radiator and cylinder all at same time due to overheating?

It's possible that car engine overheated after the transmission fluid was changed, but it's more likely a coincidence or unrelated issue. Changing the transmission fluid should not directly affect the engine's cooling system that handles preventing overheating. Overheating can have various causes, such as:

1) Coolant leak: Check for any leaks in the cooling system, including hoses, radiator, or water pump

2) Faulty thermostat: A malfunctioning thermostat may prevent the coolant from circulating properly, causing the engine to overheat

3) Clogged radiator: A blocked radiator can restrict the flow of coolant, hindering the transfer of heat away from the engine

4) Faulty radiator cap: A defective radiator cap may not maintain the proper pressure in the cooling system, causing coolant to boil and create steam

5) Malfunctioning water pump: If the water pump is not working correctly, it won't circulate the coolant efficiently, leading to insufficient cooling

Replacing multiple components like the water pump, thermostat, radiator, and cylinder simultaneously is not a common practice for addressing overheating. These parts can fail independently and are usually replaced separately as needed. To diagnose and address overheating effectively, it's essential to identify the underlying cause accurately and replace only the necessary parts.