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Runs fine 45-50mph then like hits wall. NO error codes

Discussion in 'Gen 2 Prius Technical Discussion' started by aprius, Jan 26, 2019.

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  1. aprius

    aprius Junior Member

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    2005 - just broke in 365K + miles :) Never any issues till now....love this car

    Thinking it is Transmission but not sure.

    Battery not charging fully
    Whines
    No error codes as of yet
    If you floor it just whines and does not speed up
    Just replaced 12V battery
    New Cats past few months
     
    #1 aprius, Jan 26, 2019
  2. Raytheeagle

    Raytheeagle Senior Member

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    Some questions:
    • What is the battery behavior otherwise?
    • If you try to force charge it, what happens?
    • Where is the whine coming from?
    • When was the last transmission fluid change?
     
    #2 Raytheeagle, Jan 26, 2019
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  3. aprius

    aprius Junior Member

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    Battery was fine till past few days when all this started. However it was checked yesterday and no issues as no codes are showing for anything.
    How do you force charge it?
    Whine has stopped. Occurred when floored it. Sounded like coming from front/trans area or engine.
    Fluid change...umm a while ago - it is due.
     
    #3 aprius, Jan 26, 2019
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  4. Raytheeagle

    Raytheeagle Senior Member

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    Basically put the car in gear, foot in the brake (use the parking brake for extra safety) and hit the gas and watch the battery charge;).

    I’d change the transmission fluid and see if you have any particulate in it. If you have metal shavings, it isn’t a good thing.

    But it could be early signs of the battery going out.

    Good luck and keep us posted (y).
     
    #4 Raytheeagle, Jan 26, 2019
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  5. aprius

    aprius Junior Member

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    Thanks. Will try that.
     
    #5 aprius, Jan 26, 2019
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  6. richard203

    richard203 Member

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    might be the torque converter that making the whining sound. if you gas the car is the whine louder?
     
    #6 richard203, Jan 26, 2019
  7. audiodave

    audiodave Active Member

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    Engine reved up when you hit that wall? Any kind of kick down when floored? Or motor not revving up and car hits the wall?

    Posted via the PriusChat mobile app.
     
    #7 audiodave, Jan 26, 2019
  8. aprius

    aprius Junior Member

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    Ok, tried the force charge - not to successful but took it for a spin. Battery charged fully out of the blue but drained quickly when tried to get up to speed. Ran great till got to 50 + and then started doing regular thing of kind of stuttering.
    Think though found issue:
    Looked at invert pump reservoir and there was not any movement at all in "ready" mode and when engine engaged - could that be this easy?
     
    #8 aprius, Jan 26, 2019
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  9. aprius

    aprius Junior Member

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    Yes, it comes and goes though now.
     
    #9 aprius, Jan 26, 2019
  10. aprius

    aprius Junior Member

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    Gets to 50s no issue then stalls/hits wall and won't accelerate any more with pedal to the floor. Just like trans is slipping but just ran it again testing some stuff and battery charged fully, ran great till got to 50s again, battery drained quickly and would not accelerate any higher.
    Checked invert reservoir and no movement in "ready" or engine engaged
     
    #10 aprius, Jan 26, 2019
  11. audiodave

    audiodave Active Member

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    #11 audiodave, Jan 26, 2019
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  12. audiodave

    audiodave Active Member

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    #12 audiodave, Jan 26, 2019
  13. aprius

    aprius Junior Member

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    I know. Neither does anyone else and I have a rather good person here in town that hooked it up many times yesterday and today
     
    #13 aprius, Jan 26, 2019
  14. audiodave

    audiodave Active Member

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    #14 audiodave, Jan 26, 2019
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  15. aprius

    aprius Junior Member

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    THANKS EVERYONE!!! Hopefully it is as simple as invert pump as not getting any codes.
     
    #15 aprius, Jan 26, 2019
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  16. Raytheeagle

    Raytheeagle Senior Member

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    The battery doesn’t sound healthy either;).

    One cell in one of the modules is probably on its way out:cool:.

    Be ready for that reality as well(y).
     
    #16 Raytheeagle, Jan 26, 2019
  17. George W

    George W Active Member

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    get a code reader and Dr. Hybrid. Do the HV battery test to see which modules are reading lower than the others.
     
    #17 George W, Jan 27, 2019
  18. edthefox5

    edthefox5 Senior Member

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    No codes meaning no lights are on the dash no indications on the mfd no red triangle of death? Or you have lights on dasy but when you use an obd code reader it comes up with no codes? Which is it?

    Sure does sound like the hybrid battery is in limp mode..
     
    #18 edthefox5, Jan 27, 2019
  19. jerrymildred

    jerrymildred Senior Member

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    The Prius does not have a torque converter.

    This sure sounds to me like either a hot inverter or else a badly out of balance traction battery. If it does it from the get-go with a cold engine, I'd be looking into that battery. If it runs OK for a while cold, but then starts acting up, them I'd suspect the inverter pump.

    I don't remember you saying what code ready you used. Lots of them have no codes for the hybrid system. Techstream would tell you for sure. Ot, as mentioned, Dr. Hybrid would show the condition of the battery fairly well.
     
    #19 jerrymildred, Jan 27, 2019
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  20. audiodave

    audiodave Active Member

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    There is no circulation in the inverter reservoir. So we know that's a issue.

    Posted via the PriusChat mobile app.
     
    #20 audiodave, Jan 27, 2019
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