Prius (2010-12) :: Engine Running Too Frequently And Longer Won't Quit Easily?
Mar 14, 2013
I used to get great MPG's in the beginning (>57 MPG in summer) that deteriorated as the engine started to run longer and more frequently after what I suspected to be a faint bump against a garage wall in the front. This was several months ago. I have since been averaging about 47 MPG overall (averaging winter, summer out). I forgot about the bump incident until last week when the engine suddenly started running shorter and less frequently. This lasted for a week or so, with no significant changes in the weather/temperature. And then inexplicably, it has started to run longer and more frequently again. By "more frequently", I mean when I bring ICE on, it doesn't easily quit, regardless of my prodding it to quit by going into regen momentarily. Also, the initial warmup is longer.
View 4 Replies
Advertisement
The first part of diagnosis is to understand how frequently this happens and hopefully find any reproducible patterns. This is an open poll running to the end of October.
ZVW30 - 1.8L Prius...
View 12 Replies
I have noticed that when I open the door to the driver's side after the car has been sitting overnight that the pump noise is longer than half a year ago when i bought it used. It used to last for max. 3 or so seconds, and now it takes 5-10s - depends. I can get into car and almost get it into ready and then it ends.
Also, every second or third time i press the brake (normal, like when stopping gently) i can hear the sound of the pump for around 2 seconds. I don't remember that happening before so is this or isn't normal?
View 11 Replies
When I went to put my car into gear today (automatic gear box, 2004) the gear shifter was very hard to move, as if whatever automated its ease is no longer functioning. And i'm pretty sure the steering and brakes are not performing with their power aided functions either. Is this a set of servos all on one line somewhere? Fried? Just a fuse?
View 6 Replies
During the last week, or slightly less I suddenly started hearing the brake boost pump running much more frequently than normal in my 2008 and is also producing a "knocking" noise along with its run noise which increases in frequency as the pump speed increases. No problems with the engine coolant pump for the thermos, and the inverter pump was replaced yesterday along with a replaced "bolt" in the steering column for the recall.
View 4 Replies
Why I'm suddenly having trouble starting my 2010 Prius when cold? I depress the brake and push the start button, but lately, sometimes the car doesn't start. It will start as if I didn't have my foot on the brake and the dash will light up. To get it to start fully I have to depress the brake and hold the start button down for 10-20 seconds. Then it starts.
View 9 Replies
Just bought a 2010 Hertz GenIII w/44,000mi. Wife had trouble starting it twice with weird messages like place car on flat surface to orange triangle. I hear it may be a weak battery???
View 3 Replies
I understand the engine turns on and off frequently (coming to a stop it turns off, then when going it turns on). I have noticed that sometimes when at the stop it will turn off, then immediately back on, and off again, even with my foot on the break.
View 4 Replies
If I put the Prius in park while I get out and mail a letter, engine temp is 190, I can get back in and drive off on electric, zero rpm's. However, if I push the start/stop button, mail the letter, and restart the engine (temp is still 190), I cannot get the engine to spool down. It keeps running for a few minutes.
View 4 Replies
How does the A/C still blow cold air with the engine not running?
View 16 Replies
up. Coolant temperature was high (160 F). Car was in low speed (5-10 mph because of traffic). Battery level was high (67.8% 7 pips).
But gas engine was still running non-stop.
Checked battery temperature. It was 28 F.
Switched from recirculating to fresh air mode. The battery temp raised from 28 F to around above 32 F rather quickly. Then the gas engine stopped and car started to run on full EV mode.
Did not know the fresh air mode will have such a prominent effect on battery temp...
Will use more fresh air mode in summer when the AC is blasting.
View 3 Replies
I'm considering a 2001 VW Jetta 1.8T with 135,000 miles that the owner is selling for $1,000.00 because it is "starts and runs but it's difficult get it accelerated and it's just running rough ". I haven't yet looked at the car or pulled the codes, but before I do, is there a common point of failure on these cars that leads to the symptoms described?
If it is something such as a crankshaft position sensor, then I could potentially have a good car for a lot less than the book value. If it's something such as the timing having jumped a tooth, then that's probably not something that I want to mess with.
View 17 Replies
I have a 1997 ford f150 V-6 4.2. My son was driving the truck on the expressway and it quit running. The toe truck has delivered the truck back to my house. The engine turns over but will not start. I shot gas into the engine with a spray bottle and the engine still would not start. Was going to check the coil for spark next. What to check first. Was thinking the problem could be the modulator or coil.
View 10 Replies
I like to stop for a morning coffee en route to work, about 2 minutes out of my driveway. I'd like to keep the engine running during that time to continue warming the cabin, so I have some chance of taking my gloves off at a traffic light rather than once I'm on the highway. It's about 90 seconds that makes all the difference.
However, only a fool would leave it running and unlocked, while running inside the store. The keyfob can't lock the doors like this (it's ignored while the hybrid system is on), so I use the hard-key once I'm outside. However, that's slow and fiddly, especially with gloves, especially unlocking it again when I come out with my purchase in my hands.
View 15 Replies
My wife bought a new 2010 Prius Hybrid. It has consistently achieved 51+ miles per gallon. She bought it in June-2010 and at the 7000 mile mark (October?) called me concerned about a noise it was making under the hood. She described it as akin to the noise a playing card made when as a child you fastened it to the spokes of a bicycle. Chattering? It lasted 15-30 seconds and went away, before engaging in reverse or forward. A trip to the dealership was fruitless, an "intermittent episode" the diagnosis.
Now, nothing since until today. Same noise again, 12,000 mile mark, goes away in same timeframe, in park. Only today, through the course of several errands, her dash MPG indicator reads 39 MPG. She is waiting as we speak in the dealer lobby as they plug into the computer hunting for fault codes, etc. Having issues, especially an indicated dropoff in MPG seemingly in conjunction with such a noise?
View 19 Replies
So this has happened to me a few times now in the cold temps. For my job I'm left to sit and idle every now and then after over an hour of driving.
I'll park my car, ICE will turn off, ICE temp at 195. Sit with heat on at 65 degrees. After about 10 minutes the engine temp will drop to about 110, which the ICE will start and warm up to about 135 and turn off. Hybrid battery stays above 55% and normally hits about 65% on every ICE start. (I have extra instrumentation installed to monitor)
View 13 Replies
2003 with about 140k miles, radiator was replaced a couple years back, recently replaced timing belt (#2) and some valve cover gaskets in advance of a road trip.
On the road trip, used no cooling air, occasionally used heat at night with the roof down. At one point, I thought I heard my engine louder than normal, but decided it was actually machinery nearby.
The next morning, after only about 1 hour of leisurely driving through a civil war park for about an hour, I confirmed that in fact it was my vehicle making the noise.
It was fairly frequent, and basically sounds and feels (hand on air filter) like the blower kicking on, as if to cool the car off.
But the air temp was cool, the car temp was solid and cool, so there wasn't a good reason for this to be happening.
Because I had just had the timing belt & such done, I stopped at a dealer. The engine light came on as I pulled in.
They indicated that they saw a MAF sensor failure, and that while it needed to be replaced, it wasn't a problem to finish my road trip. They indicated the check engine light was related and also ok to drive with. They then lost a lot of credibility when they tried to ask me if perhaps the AM radio was the noise I was hearing...
Despite that, I continued on (had to be somewhere and they said it was ok to drive). The engine light actually went off the next time I filled up, so I decided perhaps that was actually a gas cap pressure issue (saw that once before in my ~6 years of driving the car).
Back at my home Toyota shop, they confirmed the MAF replacement need, and have also suggested spark plugs (fair enough).
But re: the air, they don't believe it sounds 'wrong'. I agree with that- it sounds 'right', as in when the blower kicks on, and I vaguely recall that it was something I heard back when my radiator actually rusted out / failed.
My issue is that it seems to be happening MUCH more frequently than normal.
So while I don't recall hearing it at all over the past couple years or only on very rare occasions under load, or when the radiator failed, it seems to be almost routine now, where at a given stop light (even in just a few miles of driving in town at low speeds), I'll hear the extra noise.
View 5 Replies
I've only had the car a month, and it's happened maybe three times now. I turn the key, and it takes twice as long as usual to start, about 5 full seconds of the engine cranking before it ignites. I think each time was after I had driven the car an hour or two before (when I'm heading home after an outing). Most of the time, the car starts fine. What's going on?
View 11 Replies
My 05 was running rough and misfiring quite frequently. After much deliberation, I took it in for a diagnostic hookup. The dealer said my driver side cat was clogged. Lucky for me, I was just under the warranty period(79673 miles). I have had it replaced and I can feel a noticeable difference in the way it runs. Could a clogged cat have made it run that poorly or am is it just in my head that it is running alot better?
View 7 Replies
I brought my 2012 Prius in on St. Patrick's Day for routine scheduled maintenance and was informed about the recall--I hadn't even known yet. I was told it would just take an additional 45 minutes for the software update--no big deal. Except that it was.
They said the computer that was hooked up to my car crashed during the update, and my car computer would no longer recognize the hybrid system. They had no explanation for the crash and said their computer had a full battery, etc. so it didn't make sense, but they would call Toyota to find out way to do and in the meanwhile I would have a rental.
It is April 7 and I still have the rental. They said the part needed, a new computer, is on backorder. They hope it will be in by the end of April but there are no guarantees.
View 19 Replies
I took my 200000 mile Prius to a garage that is highly recommended and the mechanic stated that I need a new evaporator and expansion valve. He tested the car for a day. There was no time to do the fix so I arranged for a dealership that I trust to do the job. When they were ready to do the work, they detected no leak in the evaporator, but said that the compressor, expansion valve, and AC line needed replacement. (They showed me the leak in the compressor with special glasses.) After I called the first mechanic with the new info, he said that he could detect a leak nowhere, but, in the evaporator, and, at the expansion valve area. I am now stymied as to what I should do.
View 7 Replies
