1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Advice/Help Requested

Discussion in 'Gen 2 Prius Main Forum' started by Ben Kramer, Aug 23, 2024 at 3:51 PM.

Tags:
  1. Ben Kramer

    Ben Kramer New Member

    Joined:
    Yesterday
    1
    0
    0
    Location:
    California
    Vehicle:
    2009 Prius
    Model:
    II
    Hi all-

    I recently noticed a new sound under the hood in my 2009 2nd gen. The sound begins when the car is parked, still on, and the engine has turned off (not accessory mode- generally after I park). If I keep the car on and the engine turns back on, the sound stops. It’s a sort of clicking, whirring, rotating-like sound that comes from right around/under the fuse box. No warning lights. Sound continues even if A/C is turned off. Has anyone experienced this? Thanks for your time.
     
    #1 Ben Kramer, Aug 23, 2024 at 3:51 PM
    Last edited: Aug 23, 2024 at 4:03 PM
  2. dolj

    dolj Senior Member

    Joined:
    May 14, 2012
    7,741
    3,919
    0
    Location:
    Wellington, New Zealand
    Vehicle:
    2007 Prius
    Model:
    N/A
    Like a washing machine?

    If yes, that is the coolant flow control valve malfunctioning. There are a myriad of threads here on PriusChat on how to fix that.
     
    #2 dolj, Aug 24, 2024 at 5:00 AM
  3. Tombukt2

    Tombukt2 Senior Member

    Joined:
    Nov 29, 2020
    9,594
    1,680
    0
    Location:
    Durham NC
    Vehicle:
    2009 Prius
    Model:
    Base
    You've got a few pumps that can work and make noise You got an inverter pump the brake pump coolant control valve if the car is getting hot enough warmed up enough etc usually Prius that's a pretty rare thing actually but it does happen even here in North Carolina it seems like it takes a while to get to operating temperature unless you're really going somewhere for an hour. Seems to be a very cool running car when everything is working properly so if you've got an overheating or a real hot running this model Prius and we'll figure it out eventually Cool and control valve yucky contents In the system dirty etc bent fins on the radiator etc
     
    #3 Tombukt2, Aug 24, 2024 at 9:30 AM
(You must log in or sign up to post here.)