We just bought a 2011 and are only getting 40 mpg max. I wonder if the 110 Arizona summer heat has something to do with it. Pretty bummed. I have read 50 with careful driving is normal? I let bicycles outrun me? 12 volt battery? New plugs? It has 107,000.
View 19 RepliesHave owned this car for 8 days and the wife is driving her normal traps, only shows having used 1/2 tank and over 240 miles, something must be wrong with this thing, must take back to dealer,
View 6 RepliesI have a 2013 Hyundai Sonata GLS with 55,000 miles. I was told to replace the plugs and battery by my local automotive shop. I decided to do it myself to save a couple of dollars just this past week. I filled up the car today and noticed the MPG dropped significantly. Normally a full the tank shows I have 420 miles to go. Today it showed 370 a difference of 50 miles.
I have two ideas why this happened:
1) Replacing the battery has caused the computer to reset and as a result it is showing the wrong mileage. After a week or two of running the correct mileage will show. I drove the car about 150 miles after changing the battery and thought this would of been enough time for the computer to figure out the MPG if this was the problem.
2) I caused damage to the Iridium plugs when I gapped them and did not notice it. I used Autolite XP6203 model and gapped them at .044. Autolites do not come pre-gapped I was told. The car is not hesitating and runs smooth. I am thinking this is the problem but not 100% certain.
Is my idea about the computer valid and I should give it some time to recalculate MPG? I am thinking to give it a couple of tanks of gas and see if the car fixes itself
So in the middle of a road trip 9 days ago my check engine light came on. I was 2 hours into an 8 hour round trip day trip. I was close to a Toyota dealer so I went there for a diagnosis. They said my MAF bank 1 sensor 1 needed replacing but they didn't have the part so couldn't do the fix but I'd be okay to complete my trip. They collected their $100 and sent me on my way with no warning lights on.
30 minutes later the check engine returns and I'm unable to accelerate. I stop the car for a bit and then am able to continue my trip. I have one other incident where when I was traveling at a low speed, I lost all power. I was able to drive home 4 hours with the check engine light on but no further issues with the exception that I got less than 20 miles a gallon for the trip.
Took my car to a local Toyota dealer. They independently diagnosed that the same sensor needed replacing. They also told me that my spark plugs were shot. According to the service rep, they looked like they were from a car with over 100,000 miles.
Is this possible given the description above from the first time my check engine light came on?
Just bought a used 2010 prius II about 2 weeks ago with 10000 miles on it. As I've been driving I feel the consumption display is misleading. It averages around 52-53 mpg, but I'm only getting about 480 miles before I'm running on empty. The tank capacity is 12 gallons right? If so I should be getting at least low-mid 500's before I need to fill up again. Hopefully I'm calculating something wrong and its not the car itself.
View 16 RepliesI have rough idle problem after changing spark plugs, fuel filter and battery. There was no rough idle problem before this work was done. What could be wrong. Once the speed is above 20 mph it seem to run fine but at stops it vibrates and seem like it may stall!
View 6 RepliesWhen the shaded area is in the battery half of the ECO bar I would expect to have the mpg be 100. It sometimes shows only 25 mpg. Just purchased a 2010 and learning how to get the best mileage possible.
View 8 RepliesI got prius i-tech Australia (should be IV or V in US). I just noticed this morning that my fuel economy is better when I got 6-7 bars on battery level, and worsen if i only got 2-4 bars. Is it just my imagination or any explanation for it?
View 8 RepliesOn a hot sunny day, occasionally I have to be stopped for extended periods with the A/C running which means the engine will come on for a few minutes out of every 10 minutes or so. to charge the traction battery. Engine comes on at 2 bars and goes off at 3 bars.
As engine efficiency at idle is low, would it be better to put it in D with the brake firmly pressed and push the accelerator so that the engine speed is in the high efficiency range so as to produce more charge for the fuel burnt and maybe also I could charge it to a few more bars on the battery indicator?
How many miles can be driven after the computer tells you have zero miles left to empty? Or rather how many gallons do you think is left in the tank after the computer says you're empty?
View 19 RepliesI got the plugs for my '06. I hope to put them in in a day or 2. My question is: is it necessary to disconnect the 12v battery to do this? I've changed plugs in other cars without doing so.
View 6 Replies I bought my 2011 Prius III back at the end of December and so far have had 3 fuel ups. Not counting my first tank, my second tank I got 44.4 MPG calculated with mindful driving (driving slower and pulsing and gliding etc). The last tank however, I decided to drive a little more like how I drove my previous car (2001 Lexus ES300). This last fuel up resulted in 41.4 MPG calculated. I feel like I have to work quite a bit to keep it above 43 MPG. I am located in Southern California Orange County, however 90% of my driving is NOT in Socal Traffic. I also changed my oil to Mobile 1 Synthetic Enhanced Fuel Economy yesterday at 1200 miles.
I also have read a lot about break in at 3k-5k, which is keeping me hopeful. How much can I really expect, if any at all? I am not sure what to think on this because as with the people who have experienced good jumps after a break in, it seems there is an equal amount of people getting great MPG right off the bat.
- What fuel economy are you getting and how are you determining fuel economy? (trip computer or manual calculations) 42.9 average for the last 2 tanks - calculated
- What fuel economy are you expecting and why? 45-48, brand new car and adjusted driving techniques. I was hoping for 50+
- What are the approximate outside air temps? 55-80
- How long are your trips? Daily, about 3-5 driven. Weekends 80-160
My 2010 prius had been giving low mpg since the last three months. It has now 145K miles.when I bought it a year ago, it had 134K on it. I haven't changed the spark plugs, do they have any effect on low mpg? My mpg is about 39 now,but was 42_45 before.
What are the symptoms for the spark plugs to be changed?
Ive had my 2011 for 20 months. I have 7,300 miles. I know the manual states changing around 22k but do you think time is a factor as well? I wont hit 22k for two years. Truck will be 3.5 yrs old. Should I just change them at 10k and see how they look? Don't want to waste the money either if its unnecessary. I use it 50/50 towing/unloaded.
View 8 RepliesRight now I am seeing roughly 41 MPG and that is after changing the spark plugs with brand new NGK Iridium's, Air intake filter and did an oil change since it was due for one. I have driven the car roughly 2,500 miles since all of this stuff was done and it just seemed to continue to drop to the 41 MPG mark.
What I have noticed though is that when the motor turns off it shudders and the when it restarts while the car is in park the car will roll back and forth slightly. I have also noticed that the car seems to struggle to get up to the posted speed while climbing an incline and also while the car idles in park or at a complete stop there seems to be a bit of a miss fire. Could that be caused by a bad coil? Because I have tried everything short of taking it to the dealer which I really do not want to do again and be told there is nothing wrong with it when I know there is.
I have a 2011 in the shop for a fuel leak. Truck has 208,000 miles on it. Leaking fuel into the valley. I took the upper and lower intake off and cleaned all the fuel up so I could see and with the key on there is fuel coming out from the bottom of the CP4 area where it mounts to the front cover. Looks like there is an o-ring between the front cover and the CP4 but wouldn't that o-ring be for sealing oil and not fuel? I'm confused as to how this works. Truck runs great with no check engine light. It's not a fast leak but a drip drip drip from the bottom of the engine once it fills up the valley enough to run off the back of the engine.
View 14 RepliesI just installed a pair of extra reverse lights and noticed there are a few (3) unused plugs behind the auxiliary dash button panel.
View 1 RepliesI have 60k on a 2010 Prius III. my mileage is slowing dropping, i am thinking about installing new plugs.?
View 7 RepliesYesterday I measured the mpg going uphill.
It was 22.2 MPG going Uphill 4.7 Miles from elevation 50ft to elevation 1250 ft. It is more than 50% drop in the mileage.
Do other cars ( non-prius / non-hybrid ) too drop 50% mpg going uphill ?
The battery gauge on my 2007 seems to be dropping much faster than it used to. I can back out of my driveway with full green, and be down to purple in two miles of <45MPH driving. It also seems to recharge faster, as if the 'window' of usable charge has become much narrower.
I took it in for the 45K service, and asked the dealer to investigate. The tech wrote that everything is fine, and that this behavior is normal because "this is deep cycle battery".
Two questions: If the main battery fails completely, will the car still be driveable or will I be stranded at that point?
The little 12V battery is still the original that came with the car. Could it cause the above symptoms?
I'm new to this technology. I bought 2008 t spirit prius . The battery drains in couple of miles. I don't know what to check .
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