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Just got a used Prius first things to look for?

Discussion in 'Gen 2 Prius Main Forum' started by Meever, May 12, 2011.

  1. Meever

    Meever New Member

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    What should I do? Get a checkup at a dealer? Or just a non-dealer mechanic who is familiar with Hybrids? Anything I can look into myself? I'm not exactly an expert but I'm generally a pretty handy guy.

    Oh, and also. It's a 09 and I'm really driving efficiently (going under 40, really, really, gently accelerating, etc) and I'm getting about 44mpg (city almost exclusively) is that normal?

    Any input would be greatly appreciated, thank you.
     
  2. uart

    uart Senior Member

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    Try accelerating a bit quicker. Not flat out but say at about 30% to 40% accelerator pedal displacement. You should be able to get about 50 MPG once you get more used to it.
     
  3. bisco

    bisco cookie crumbler

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    how many miles on her? i would just make sure all the maint. items in the book are done for the mileage. not sure there is anything you can 'check out'.
     
  4. seilerts

    seilerts Battery Curmudgeon

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    North Cal... Two of the best hybrid shops in the nation are up that way, Art's Automotive in Berkeley, and Luscious Garage in SF. No reason to use a dealership unless you are in the unlikely need of a warranty repair.

    A 2009 is one of the most robust vehicles on the planet. Have the transaxle fluid changed now and every 60,000 miles, and you have a reasonable expectation of many trouble-free years/miles. One of the users here, 2 fas 4 u, has logged 353,000 miles and counting on his '09.

    The two most likely trouble spots are the 12V auxiliary battery, and HID headlight bulbs, if you have them. The 12V battery is easily damaged if it gets run down. It is an AGM battery with special terminals, so replacement with either OEM or conversion to an Optima yellowtop is not as cheap as buying a small conventional flooded lead acid car battery. The HID bulbs are a known issue on '06-'09 and there is warranty coverage to 50,000 miles. The symptom is that one bulb will flicker and go out after being on for a few minutes. The same exact bulb that sells at the dealer for $150 is sold on Amazon for $55.
     
  5. Meever

    Meever New Member

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    Wow, thanks for the great inputs guys.

    Yeah, this guy has little over 50,000 (like 50,120 or something). Ride is very smooth. Everyone who gets in it constantly ramble about how quiet it is.... I think I've already gotten accustomed to it though (I can hear road noise and engine pretty clearly)

    I learned how to get the car into electric only so I'm pretty happy about that. I get the car to about 20 or 30 and REALLY gently push on the accelerator. If I'm pressing ever so slightly it'll maintain electric only until about 40ish. I thought it was weird that it needed the gas engine to accelerate at such low speeds but maybe I'm pushing it a little harder than I realize.

    Also one more question. Is the electric motor suppose to buzz for a little bit right after you've turned the engine on and for a few seconds after you've turned it off? It's such a abnormal sound to hearing from a CAR :D
     
  6. adamace1

    adamace1 Senior Member

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    Removed. I didn't pay attention to the year of the car.
     
  7. MelissaAnne

    MelissaAnne New Member

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    Check for used condoms wedged between the seats....
     
  8. xpcman

    xpcman Senior Member

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    I learned how to get the car into electric only so I'm pretty happy about that. I get the car to about 20 or 30 and REALLY gently push on the accelerator. If I'm pressing ever so slightly it'll maintain electric only until about 40ish. I thought it was weird that it needed the gas engine to accelerate at such low speeds but maybe I'm pushing it a little harder than I realize.

    You don't want it in "electric". Charging the battery takes gas, unless you get the charge "free" from regen when you slow down and brake. Pluse and glide is the way to get max milage.
     
  9. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Since your car is relatively new, all that is needed is to verify correct fluid levels especially engine oil. If the engine oil doesn't look clear then you may want to change it using 5W-30 viscosity. The engine oil level should not be above the top dimple.

    The point has already been made that you do not need to accelerate so gently. The idea is to reach your desired speed using the gasoline engine without placing much drain on the traction battery. The reason for that is the battery eventually needs to be recharged by the gasoline engine and there is some inefficiency in that process.

    Once you reach your desired speed then you can be gentle with your throttle and brake inputs to maintain that speed. Or you can try the "pulse and glide" method which may improve your mpg further (do a search if interested) although I personally do not bother.

    You may have noticed that your car's mpg over the first 5 minutes of operation is ~25 mpg. This is because the gasoline engine runs to heat up the catalytic converter. Therefore if you make short trips your mpg is not going to be great no matter how slowly you drive in the city. Longer trips should result in better mpg.

    The engine coolant heat recovery pump usually runs for a few seconds upon startup and shutdown. That pump can make a very distinctive sound and is located in the LF wheel well in front of the tire. The purpose of that pump is to circulate hot coolant into the engine upon startup, to speed up engine warmup and thus reduce exhaust emissions.

    You may also be hearing the brake pressure accumulator pump. You can force that pump to run by repeatedly depressing the brake pedal, and the pump is mounted on the firewall in the engine compartment. The purpose of that pump is to provide hydraulic pressure in the brake system, in lieu of the vacuum-operated power brake boost assembly that most cars have. (Since the Prius gasoline engine does not run constantly, a brake system that depended upon the continued availability of engine vacuum would not be a very good system.)

    It would be helpful for you to become familiar with these sounds so that you know what is normal.
     
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  10. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    Welcome and you are trying too hard! Just drive it! You may find that brisk acceleration improves mileage. One secret to good mileage is to not hit the brakes, so plan ahead not to. That will improve any car.
    Here is an excellent alternative owners manual
    John's Stuff - Toyota Prius User-Guide
     
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  11. richard schumacher

    richard schumacher shortbus driver

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    It would have been better to have it checked out by a dealer before buying it, to make certain there were no in-obvious problems, but it sounds like everything is OK. Buy a copy of the Owner's Manual from a dealer or online and read it. See here for the maintenance schedule:
    Toyota Parts and Service

    Ditto remarks above about accelerating. You want to use the battery as *little* as possible, to avoid the losses inherent in energy conversion.
     
  12. bisco

    bisco cookie crumbler

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    now, get out of here!:D
     
  13. Meever

    Meever New Member

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    I started driving typically via costing/gliding and yup. That's how you hit the big number XD

    I've been hitting 45-50+ consistently in stop and go traffic (no highway in there at all! pure city). Pretty impressive. I guess the gen3 prii get even better MPG in this situation but who cares! Better than my old car that was barely hitting 16.
     
  14. bisco

    bisco cookie crumbler

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    well done!