I think that you're looking at the cruise control vacuum actuator. My 2001 Altima has two throttle cables; one from the had pedal and the second is the actuator. I'll check the next chance I get. ~Hoopers garageHello, I have a 2000 altima gxe 2.4. Can anyone identify the part currently circled and its function. And also is it normal for the fan to continue running 20 seconds after making a 20 or so minute drive in Southern weather with these cars? Thanks guys.