Prius Plug-in 2012-15 :: Engine Started Revving Loudly On Occasions
Oct 20, 2015
I bought a new 2014 Prius plug-in base model two weeks ago. No problems until yesterday.
The engine has started revving really loudly on occasion. It's much louder than the normal ICE noise in hybrid mode - 2 or 3x as loud (much louder than our regular Honda Civic engine).
When the revving happens when I'm in EV mode, the EV mode light on left side of dash stays on (but it's clearly not in EV mode). The EV and Eco symbols above the power bar go blank. The MPG won't go above 25 mpg, no matter if I'm not touching the accelerator. Switching from EV to Hybrid mode and back does nothing.
The only way to get it to stop is to stop the car, turn it off, turn it back on, and then it's fine - EV or Hybrid mode, it sounds normal again. I have not tried to drive more than a mile with the noise to see if it goes away. It occurs when:
-If the fan, heat or defrost is on when I turn the car on - turning them off doesn't stop the revving.
-If I switch the fan, heat or defrost on when stopped at a light - turning off doesn't stop it. (But it doesn't happen if I turn heat or defrost on while moving in EV or Hybrid mode.)
-If I switch from EV to Hybrid mode while stopped at a light.
The weather is cooler now and I'm fine with the ICE starting to warm up the engine, the compartment, etc, but the revving noise doesn't seem normal.
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For those of you with more experience with the Hymotion pack than I:
1) What does it mean when the car "chirps?" It seems like I get 3 or 4 chirps on occasion, with each chirp itself being a rapid succession of 3 individual chirps? I assume it is something to do with the Hymotion pack because I never heard them before the pack was installed.
2) Under light acceleration, say 1 mph/sec, when the engine is just barely contributing to acceleration, at around 31mph (+/-) the engine stops putting out power (the arrows from the engine disappear), the car noticeably hesitates when the engine drops out, I get 3 or 4 chirps, then the engine comes back "online" about a second or two later and all is well. Under normal (i.e. faster) rates of acceleration, this does not happen.
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I'm rolling down the freeway in stop and go traffic, so I have been EV stacking. Clicked from EV to HV several times over the course of 5 minutes. Then, I hear this fairly high pitched revving sound - even and constant rev up, not rev/idle/rev. I thought it was the truck next to me, so I turn down the radio and away from the truck but it happened again. I would stomp on the gas for a moment, and it would subside - not completely because it would start doing it again very soon. I'm not accelerating, but it would be like throwing it into neutral and revving. When I come to a complete stop, it would not go to EV - the light isn't on like when it is warming up the ICE.
My exit was coming up soon, so I would alternate pumping the brake and gas to get it to stop. Only when I was at the light that I powered off the car to reboot. Since then, it did not recur. Strange... Perhaps related, but I doubt it - I had bumped into a vehicle around 3-4 mph the day before. I was... drowsy.
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Had my Prius since Saturday. First charge on Sunday. Charged fully, when turning it on saw the Charge result prompt. But I charged it Monday, saw the orange light, went out 3 hours later, light was off, unplugged it, blah blah.
But when I went out and drove it today, it didn't have the charge result indicator (actually, I wasn't looking) but I know it wasn't charged cuz it didn't go into EV mode.
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I have had my Plug-In Prius for 3 weeks.
I have been using an extension cord that stretches from the vehicle to my garage outlet . I charge every night. Apparently, my garage 110v outlet is on the same circuit as my bathroom 110v outlet. Today, that bathroom 110v outlet started to "click", "pop", and then caught fire partially melting it. Luckily I was at home and awake when this occurred.
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I have had my PIP for just about one month now and I have only filled up twice. This car is awesome! I noticed when I filled up the last few times that the last block on the fuel gauge started blinking and my miles to empty reading was pretty low. However, when I filled up the tank, it only took around 9,2 gallons. Doesn't this car have a 10.6 gallon tank?
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On occasion - not frequently - I'll notice the gasoline engine kicking in when I'm in ECO/EV mode with plenty of EV battery left. Today it happened on a relatively flat street, going maybe 30 mph, without the a/c or anything else on, and about 7 miles left on the EV battery indicator. In less than 30 seconds it went back to pure EV and the gasoline engine never kicked in again.
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Does the outside air temp make the engine come on to warm up even if everything else favors all electric mode? If so then at what temp does this happen?
I'm asking because there have been a couple of times that the engine came on right after start-up with a full charge and the climate control was not calling for heat.
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I was doing some N coasting, mostly because it's a pain to try to keep regen at 0, and I noticed while the engine will start idling in drive at ~64mph (62mph GPS I imagine), the system indicates it'll stay off above that if I stay in N in EV mode. On the plus side, it can make for some higher speed engine-off coasting, but do that could push MG2's speed too high?
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I have a Prius PIP. When warmed up after driving several miles, the engine does not shut off when stopped . This happens in the ECO mode. Any solutions?
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Just had the unfortunate scene of seeing the engine light go on but I knew something has been up for a couple weeks just couldn't figure it out but today when I came to a stop my car starts revving slightly without me doing anything and when in park the rpms just increase slightly not alot.
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My son got this for his '05 Prius, and I plugged it into my PiP for awhile. I am learning to brake more slowly and accelerate more gradually, but the mileage is obviously way off. That seems to be about all it's good for, unless a check engine light comes on.
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I'm confused about my PIP. Every night, I charge my battery fully and have 11-12 miles of charge to consume during the day. However, I've noticed that at least 10-25% of the time I'm driving in EV mode, the EV indicator goes off and my gas engine just runs. It's not because I'm driving the car hard - it even does it when stopped at a light.
My only guess is that either Toyota wants the gas engine to run once in a while or else it's trying to charge the Hybrid battery (even though I'm not using it at that time). It's a really bummer because even though I'm rarely out of EV mode, I'm burning what seems like a fair bit of gas - after 300 miles of mostly EV, I'm down to half a tank of gas?
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I noticed today that my engine started up on an EV highway drive even though I didn't need it to. It came on somewhere between 65 and 67 mph when I was on a downhill portion of the highway and using only about 1/4 or less of my EV power bar. Why is the car designed to do this? Obviously I was well within the lowermost portion of the EV power band.
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On my way to the grocery store my car's RPMs started to pulse up and down (between 1 and 2) when driving. While stopped at the red light it would vibrate very hard. When i put it in park the RPMs would rise fast before i shut it off. It did the same things on the way back home plus the check engine light came on. A few hours later i put a little oil in it and drove it around my neighborhood and it didn't do any of the things it did that morning.
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I have a vague memory that the PiP will start its petrol engine every XXX miles just for a maintenance warm up if it has not been used for that mileage. An engine start will reset that mileage back to zero and start recounting its EV miles until that limit is reached again. What is that limit?
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Found the answer... it's the brake booster pump...
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The engine check light is ON this morning. It said that there are problems for the hybrid system on the display. I sent it to dealer immediately.
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Experienced this (Loud engine knock or rattle noise) regarding the service bulletin (T-SB-0010-12)? If so, did you take your vehicle in for service?
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When I drive the PiP in EV Boost mode, the gas engine rpm stays very low, so is the engine sound. It sounds like it is just idling since it revs at 1,000 rpm.
When I am going 75 mph, the engine revs at very low rpm and I had a hard time keeping it below 80 mph. My mind is tricked into believing I am going slower than the actual speed. I think I am using the sound of the engine to judge the speed or something.
It felt like I am driving a different car, one with two more cylinders.
EV Boost is when you are in EV and go above 65 mph. ICE comes on and blend gas with electricity.
Is it just me? What are your experience in the EV Boost / Blended mode?
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After my 25k service it seems the timer scheduler when the square button is pressed/held flashes at 7am. When i press the H button the hour advances to 12am then closes. I want to start the charge at 12am and finish at 5AM. The timer windows closes when i move the finish hour to 12am and then my regular clock hour changes. It used to be when i pressed/held the timer button the start time would show at 12 am and after setting it would go to the finish hour.
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