Prius (2001-03) :: Humming Noise At About 35 Mph - Stuck In Battery Charge Mode?
Oct 30, 2013
I have noticed a mid-pitched humming noise in my '02. I first noticed it about a week after getting four new tires put on it. It is speed dependent, and is most noticeable at about 35 mph.
Somehow I have gotten it in my head that the car might be stuck in "battery charge" mode. I can't tell easily because my car has a permanent power steering problem so I don't have the charge/power car diagram on my dash. I can still feel a difference when I shift into "B" when going downhill.
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I have a problem I can't figure out. 06 Prius with 105k.
Current codes: P3000, P3020, C1259, C1310, C1378
Car will run and drive but is in limp mode
HV battery fan is at full blast, but charge does not fluctuate
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I have noticed this, and thought it strange. I don’t see the charging arrows in the display.
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I don't plug my PiP in often due to the cost of electricity here, but what I have noticed that when it has a full charge, around 13Miles, it will quickly drop down to 7-8, even when not using EV. Meaning, I start up car, turn off EV and the motor gets warm. Engine shuts off and I drive normally using the ICE. Over the course of a few miles, I'd say about 10, that EV range slowly drops down to 7-8 and then maintains itself around there. Pretty much the whole time I would have been using the ICE to maintain ~70MPH on the highway, not climbing, just flat.
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Happened to go down to garage to get something from pip about 3 hours after charge was complete and noticed loud hum coming from right rear wheel well area.
We had not had any lightning storms, electrical interruptions or anything odd; house is on whole house surge protection, and 240v evse has been working fine.
Hum disappeared when car was booted up in ev for a moment and then turned off. Hasn't come back on in an hour.
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Every once and awhile when I take off in the c the car drains the battery like it gets stuck in ev mode. The ev light will be off and the ice will be running but from a dead stop take off, the instant Mpg will read between 50 and 75 Mpg till it drains the battery gauge .
After the drain it works normal charges the drained battery and might not happen again for a couple of hours or a month there is no time period it happens.
Does this sound like a normal hybrid behavior? That's what I thought at first but because of the inconsistency of the behavior.
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Since I purchased my 2010 I've never been able to use EV mode. I know it's just a novelty, and actually hurts gas mileage (due to the need to convert gas to electricity to recharge the battery), so I haven't lost sleep over this, but it is somewhat annoying.
Is there a known problem with 2010s and EV mode? No matter how gently I apply the accelerator it pops out into ECO mode again almost immediately with a message like "insufficient charge" (or something like that), even if the battery is near full charge (I've never seen it fully charged).
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I just purchased a '12 PIP advanced a couple days ago. Love it so far, but I'm confused about why it keeps on switching out of EV mode before the charge is used up. My commute is 6 miles, so I assumed that I would be able to get to my office with no problem, using only electric. Without accelerating quickly or going above 62 mph, the car still switches into hybrid mode numerous times, for no apparent reason, resulting in an average of about 90 mpg by the time I get to work, still with a lot of juice left in the battery.
Why this is happening? My dreams of going for months without filling up with gas are starting to fade away.
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I recently worked on a 2006 with 140K miles that presented with the following symptoms:
The hybrid battery was at 1 bar; the ICE would not start; the car was in Ready, but there were no codes. As I let it roll off the flatbed wrecker in Neutral, it felt lumpy. If you have ever pushed a car (or run out of gas in one) with a manual transmission that was in a high gear, engine off, it felt just like that.
I popped the hood and could see that the engine crank was turning while the car was being pushed in Neutral. What else turns with the wheels? MG2, or more specifically, the MG2 ring gear. What is the only way that the wheels could turn the ICE crank? The planetary carrier pinions were locked to the ring gear.
Surprisingly, while I was looking at things, it did manage to start the ICE pushing it around must have freed the carrier pinions, so I let it charge the hybrid battery. It was basically the worst metal-to-metal noise that I have ever heard! I pulled the drain plug and saw about a teaspoonful of large metal chips on the magnet. The fluid condition itself was very good, not the black factory fill that I am used to seeing come out.
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I began hearing a whining/humming sound just a couple of days ago esp when hitting 45mph and then would notice as I took my foot off of gas. I had hoped it was either tire or bearing related, but Toyota tried for over an hour and finally determined it was transmission related..a new transaxle assy etc would cost a total of 6500$. However, they said they did not think I had to do anything right now as everything is well lubricated..they even thought it could remain the way it is for a year to two. My Prius has 180,000miles on it. Should I attempt to find a salvage transaxle and risk having it put in? Or should I cut my losses and given up?
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I have a 2001 w/94k. New tires and alignment (3k). Recently I have been hearing a humming noise which can start to be heard around 45mph which gets increasingly loud up to 65mph, and then seems to quiet down if I go above 70mph. From the driver's seat it sounds like it's coming from the driver's side rear of the car and from the passenger seat it sounds like it's coming from the passenger side rear of the car. So it definitely sounds like it's coming from the rear of the car. Bringing my car in to get looked at it is difficult with my work schedule, so I thought I would try here first. Around the city there is no noticeable sound and there has been no loss in MPG that I can tell (44-47).
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I have a 2001 Durango. My one year old battery suddenly began to lose its charge last month if the car sat for two or more days. A local repair shop determined the alternator was okay, but the battery was bad. The parts store agreed and replaced the battery under warranty.
A week later the new battery also went dead after the car had been parked for two days. I then took it to a Dodge dealership that kept it for over a week, but couldn’t find anything wrong. Even after being parked over the weekend, it started right up for them.
After getting it back home I drove it for three days. I parked it for two days, and the third morning the battery was completely dead. After charging with a trickle charger for a couple of hours the car started fine.
I bought the car new and have kept up on all the maintenance. It’s parked in my driveway the same way for over seven years with the doors locked. What’s going on?
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I am the owner of a 2013 Pathfinder and a 2013 Altima. If I have both sets of FOB keys on me when I press the start button on my Altima the car goes into battery mode. Will not completely turn on or won't turn off. The only way to shut the car down is disconnect the battery, wait 20 minutes, and hope the car is completely shut down. Then try again and hope the car turns on.
I was told having both FOB keys on me causes interference and only carry the key I need. Besides that being absurd and can't do that because I drive my Altima in the morning and the Pathfinder at night to pick the kids up because the car seats are in there. So what I have been doing to avoid this problem is taking the Pathfinder FOB and putting in homemade aluminum foil bag so the car can't read that key. Nissan seems to think this isn't a problem.
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I've been told that my 12V battery was low.
I stumbled on this ATV/ motorcycle battery companion in the garage, can I use it to charge my prius?
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I've had the car for about 24 hours. I love it so far. My one question seems to be that the battery doesn't seem to charge all the way up. There seems to be room for 2 more bars to be completely full. Is this normal? Something to be concerned about? How this works, but if it is supposed to be full to the top, I probably should go back to the dealer?
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I'm wondering if there's a way to force the ICE to charge the HV battery, either while standing or driving. Currently, EV Mode kicks in while coasting down a hill, and I would rather use those moments to effectively charge the battery rather than trickle charge with what little gain that gravity gives me.
I know there was a way on other models to charge the battery while standing by depressing the accelerator in park (or in drive with the brake depressed), but neither method works with the 2015 Prius C. The battery continues to drain while the ICE runs in park, and it refuses to run in D or B while the brake and accelerator are pressed at the same time.
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On the Gen III Prius, is the Battery indicator that is displayed on the HSI an actual 0-100% charge indication of the battery?
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I've had my C a week and a half and it is doing great, but I wonder if the system is ok. It has never shown the battery at 100%. My Civic would charge all the way quite often.
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Took my C to the local drive through car wash as it was pretty crusty looking from all of the rain we've had lately. I had my A/C on as its a nice and warm sunny Florida day. Pulled inside and put my C in Neutral to go through the wash and half way through my car started beeping like mad and flashing the "!" in a triangle symbol and on the small screen it said something to the effect of "Cannot charge traction battery when car is in 'N'." My HVAC system drained down the traction battery and since the car was in neutral the engine couldn't keep it above the minimum SOC level. Turned the air off and anxiously waited for the car wash to hurry up so I could put it in drive. After I put the car in drive the SOC read 1 blue bar and took FOREVER to charge back (or perhaps it just seemed that way because I was freaking out..)
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I am thinking of installing amp in 2010 prius. Question how is the 12v battery keeps its charge. I am assuming the amp will be drawing power from 12v battery. When the engine kicks on during driving it is charging the hybrid battery. I am afraid of killing the power from 12v battery.
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Prius battery charge display is not very meaningful. Those line bars are not telling me much.
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