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

Rattle noise at low rpm

Discussion in 'Prius c Technical Discussion' started by Teccajay, May 22, 2024.

  1. Teccajay

    Teccajay New Member

    Joined:
    May 22, 2024
    1
    0
    0
    Location:
    New Hampshire
    Vehicle:
    2014 Prius c
    Model:
    Four
    So I have a 2014 Prius c and it has only 98k on it. I recently started noticing a rattling noise that what sounds like is coming from the engine at low rpm’s . It’s only when I get right from EV into the eco mode when the engine kicks in (I have put a obd2 in to see the rpm’s when it’s happening so I know it’s only at low rpm’s) Once I speed up , it’s gone. I also have slight knocking when I first start the car not sure if that relates to this but it sounds similar . I recently replaced sparks to and it didn’t solve anything
     
    #1 Teccajay, May 22, 2024
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    110,027
    49,993
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    does it have egr?
     
    #2 bisco, May 24, 2024
  3. spy1309

    spy1309 New Member

    Joined:
    Jan 27, 2024
    5
    2
    0
    Location:
    Canada
    Vehicle:
    2013 Prius c
    Model:
    II
    I think all of them have egr
     
    #3 spy1309, Jun 14, 2024
  4. Sonic_TH

    Sonic_TH Active Member

    Joined:
    Mar 18, 2020
    560
    93
    7
    Location:
    Puerto Rico
    Vehicle:
    2016 Prius c
    Model:
    Two
    Does the engine shakes? take a look if it does, but i think the noise is coming from the catalytic converter shield, mine does the same sound, but the engine does not shakes, and only happens at low RPM.
     
    #4 Sonic_TH, Oct 26, 2024
    vvillovv likes this.
  5. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    110,027
    49,993
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    seems to be a thing, i wonder if there was a bad run
     
    #5 bisco, Oct 26, 2024
(You must log in or sign up to post here.)