The header tanks inflow pipe..

[cc]

Hi
Could some explain the workings of the narrow diameter black rubber that goes into the top of the header tank please.
Ive noticed that my V6 is always dribbling/circulating coolant into the  header tank. I was wondering if this symptomatic of a thermostat problem, or normal function.
thanks

[Neil Choi]

It's normal, just a bleeder from the top of motor.

[cc]

cheers