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brownjeff, ASE Certified Technician
Category: Car
Satisfied Customers: 13886
Experience:  17 years experience, ASE certified, dealership certified, Service Manager for 15 years,
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smaller coolant hose that tees off upper rad hose

Resolved Question:

identify and importance of smaller coolant hose that tees off upper rad hose and seems to enter the head of motor.
Submitted: 5 years ago.
Category: Car
Expert:  brownjeff replied 5 years ago.
Hello and Welcome to JustAnswer,

My name is XXXXX XXXXX I am here to try and assist your with your question. This hose goes to the throttle body which will warm it in the winter and cool it in the summer. This helps in the performance and fuel economy of the engine.
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