Prius strange noise help

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Woodsinhabitant, Apr 8, 2023.

  1. Woodsinhabitant

    Woodsinhabitant New Member

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    Hi all, I purchased a higher mileage gen 2 Prius. It has a strange intermittent chirping/rattle noise coming from the engine compartment at all times even when vehicle is off. The EV part also does not work as it should it stays on for a couple of seconds and then just goes back to normal engine. Any advice appreciated thanks.
     
    #1 Woodsinhabitant, Apr 8, 2023
  2. dolj

    dolj Senior Member

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    Unfortunately, you need to be more specific.

    For example, by "even when vehicle is off" what do mean?
    What exactly is "the EV part" and are your expectations for it?
     
    #2 dolj, Apr 9, 2023
  3. Tombukt2

    Tombukt2 Senior Member

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    09 is a generation 2 the original body style not the coupe.? EV mode eh? I guess my EV mode has never worked I generally get between 43 and 48 mi to the gallon on a $300,000 mi vehicle that was rated to get 47.1 miles to the gallon I won't be complaining . Maybe record the noise I would say it's one of your brake pumps or your inverter pump running and maybe you're not used to that kind of noise possibly.
     
    #3 Tombukt2, Apr 9, 2023
  4. JC91006

    JC91006 Senior Member

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    Strange chirping and whirring noises can be associated with a brake actuator problem. All these cars have this problem eventually, as they age. Replacement cost for a new one will be around $2000 or less if you buy used part and DIY (with the right equipment to bleed the brakes after)
     
    #4 JC91006, Apr 9, 2023
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