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Few questions about the cooling system on my 2015 4.0 Pro 4x.
1. Is the water pump driven by the serpentine system? Meaning the pulley that has the fan clutch attached to it spins the water pump? Or is the water pump turned by the timing chain system?
2. The electric fan that I hear kick on every once in awhile, what is the reason for it? Is it just to assist the regular clutch driven fan?

Thank you all for your help and info.
 

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Few questions about the cooling system on my 2015 4.0 Pro 4x.
1. Is the water pump driven by the serpentine system? Meaning the pulley that has the fan clutch attached to it spins the water pump? Or is the water pump turned by the timing chain system?
2. The electric fan that I hear kick on every once in awhile, what is the reason for it? Is it just to assist the regular clutch driven fan?

Thank you all for your help and info.
1. Driven by the serpentine belt.
2. Yes, it's to help cool at idle when temp climb from sitting too long.
 

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