2004 Honda Civic Repair Question
Asked on July 23, 2009
2004 Honda Civic Thermo switch
2004 Honda Civic
Where is the thermo switch located and what is the difficulty level involved in replacing it with a new one?
What does the thermo switch look like?
Where is the thermo switch located and what is the difficulty level involved in replacing it with a new one?
What does the thermo switch look like?
Answer
Replied on July 26, 2009
Hi alcatraz,
The fan switch is located in the middle of the engine. Replacement is simple, screw out and in, though coolant might leak out. What is the reason for wanting to replace this switch? It seldom fails.

TIP : Work on it when engine is cold and keep radiator cap closed. Only minimal coolant would leak out when switch is removed.