Prius (2004-09) Fuel :: New Tires - Bad MPGs - Service Light Came On?
Oct 18, 2013
My wife and I were driving around town the other day. While merging onto the highway we hit a nail. I put the donut on and went to TiresPlus where I have gone since I started driving. I had been thinking about replacing the front tires due to wear and the nail wen in the side on the rear. Anyway I purchased 4 Firestone Affinity Touring tires and went on about my day. My wife drives 100 highway miles a day and then does some city driving. This week she has lost about 5mpg's according to the display average. Also the service light has come on. Can this all be tire related?
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Here in the northwest the weather has been dry and temps in the 40's to over 60 degrees. The mpg's have increased about 5-7 mpg over just a month ago.
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Winter temps are dropping my mpgs from 51-53 mpg to the 44-47 mpg range. Snow, rain, slush puts drag on the car, as well as temps in the 20-40s causing the ICE to run more during warmup and during the 15 mile trip I make daily. Also mpgs in town on 1-3 mile trips are dropping into 29-33 mpg range. I guess the Prius isn't made to thrive in cold temps. I don't know if there is much I can do about it. I did remember to raise the pressures in my tires which has dropped also.
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I bought my 2007 Prius in July 2010 with 70k on it. To date it has 78k.
During the summer months I was in Colorado and achieving anywhere between 400-450 miles to the tank.
In August I returned to the Mid-West, running well and achieving the same mileage, but as winter has come along, it is now getting about 300-350 miles to the tank, but has gotten as low as 240.
The brakes have seemed to become more sensitive, and the car seems to rattle more when I come to a stop.
Are these just symptoms, especially LOWER MILES PER TANK caused by the cold Mid-West winter?????
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First time Prius owner Aug 2012. First 2 tanks of gas very impressed at 50-51 mpg. Then going slowly (10mph) through a parking lot I heard a strange noise on passenger side underneath the car. The best description is that it sounded like a steel lawn rake being dragged under the car on the asphalt. It lasted for about 30 seconds, then quiet and I have not heard it since. No sign of issues. No dash warning lights.
My next tanks rendered 47.5, 48.5, 46.5, 45.75 mpg. Then in the last 2 tanks suddenly at 41.5 and 42.75 mpg. This seems like a very major drop in mpg. I have been reading the comments regarding outside temp etc. and I will make adjustments. It just seems extreme and the "noise" is now making me wonder if some electrical component failed and is adding to the poor mileage issue.
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I have a 2005 Prius with 130k miles on it. In Oct 2012 I took it to the Toyota dealer for 120k service. They performed the following:
120k service
Replace serpentine belt
Clean and adjust drums
Replace cabin/hepa micro filter
Replace brake system fluid
Since then my car's mpg has dropped from ~45 to ~35mpg. I specifically notice that the pickup is completely gone and that it seems to "drag" pretty badly when starting from halt (stop sign, a light etc). Once it gets up to ~40mph, it appears to be doing all right in terms of mpg. What could be causing the "drag" and mpg drop?
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I been wondering if I put light weight 17-inch rims on my car with low profile tires will that destroy my mpg?
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So, my 2005 Gen II Prius went for a scheduled service on Wednesday, 70k miles, Toyota main dealer. They called and said it needed new front brake pads and disks, I was surprised but gave the go ahead. There would occasionally have been a mild squealing sound from the brakes at very low speed so I accepted the pads might need replacing, I was surprised the disks needed replacing but it hard to argue about brakes, especially as I only have the car a year (I'm the second owner and it has a full Toyota service history). It had a "major" service, new spark plugs, new front brake pads and disks.
Since collecting it I've noticed that the engine seems to kick in more often and needs higher revs. The fuel consumption seems higher, normally mid 50's MPG (imperial gallon) now 35MPG. However it hasn't been driven many miles since its been serviced so its a low distance for calculating MPG. I've also noticed that the car seems to slow more quickly without applying the brakes, a regularly driven hill that I coast down at 48kph now only gives 35kph. Also, if I drive on a flat road for a mile or 2 and coast to a stop the front brake disks feel VERY hot, way too hot to touch, drivers side more so that passenger side.
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Last week, I took my 2006 Prius with 180k miles to Meineke for oil change. They pointed out that my front brakes need work and brake fluid needs to be replaced. I've been told about brakes by another mechanic. Two days later, my check engine light is on.
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How to turn off the light that says maintenance required? is there a thread on that?
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I dropped my car off two Thursdays ago for servicing. I planned to leave the car with them overnight because I needed the 150,000 mi servicing, the steering extension shaft recall, an oil change, and a new battery. The technicians performed a safety check as per the 150,000 mi servicing and reported nothing wrong with the airbag system.
I picked my car up at the end of the following day. When I started up my car, I noticed that the read air bag light was on in the car. Since the servicing center was closing and they had reported to me that my car was safe, I did not think there was a safety issue. I left with my car and parked it in my driveway for the weekend.
On Monday, while driving, I noticed that the lights in my steering wheel were not on and none of the buttons worked (cruise control, volume, temperature, ect.). I called the Toyota dealership that afternoon and left a message. They called me back on Tuesday and scheduled me to come in on Thursday.
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So coming home from work the engine started misfiring and the Service engine light started blinking five times in staying on for five seconds and then blinking another five times in series. The car started writing very rough and stalled out every time I came to a stop which was not normal function for vehicle. Made it to the Toyota dealership. After paing the Service fee they told me it was possibly spark plugs, ignition coil pack, and an O2 sensor not functioning. I just changed the spark plugs and ignition packs three months ago. So I took the car home put new spark plugs in and a new ignition pack I ordered from Amazon and put it in cylinder for (which they told me at the Toyota dealership) and installed a new O2 sensor myself. Disconnected the battery to clear any trouble codes and restarted the engine. The problem still exists. The trouble code they gave me at the dealership was.p0304, p0138, p0110. The car is still miss firing and Service light keeps blinking.
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Got the new tires the other day (Thursday) from a tire chain store. As I was driving off, I noticed the tire light warning turned on and then moments later, it turned off. I thought maybe it was just that. Today (Saturday) the tire light went on again. Brought the car back to tire store and the service manager checked the pressure, the tires were all low pressure, 29-30 psi instead of 35s. He re-inflated them all but the tire light will not turn off. So next step was he used a scanner tool which he attached close to all the tires.
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Im noticing my mpg dropping in the past couple of months. I usually get 19 or 20 in town, and up to 23 on the highway. Now im lucking if I get 16 or 17mpg.
I have a 2001 escape XLT. 6cyl 4x4.
I changed the spark plugs, coils and fuel filter about 3 years ago (almost 40k miles ago).
The car starts fine, seems to idle fine, seems to accelerate ok. The only thing that is off is the MPG.
I dont just want to throw money at parts. Which one should I replace?
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My 98 chevy luminas service engine light came on after I got gas. I put vaseline around the threads to seal it and the light went out for 2 days and then came on again. I bought a new cap and the same thing happened, two days light out than back on. I took the car to Autozone and did a diagnostics test which came back with error message P0341, then took it a mechanic who ran his on diagnostics on it and he says the camshaft sensor needs changed. It is a semi expensive job for an older car and I want to be sure that that is the problem, plus the gas cap thing has me confused.
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I got my a fuel injector cleaning on my Saturn at the dealer. They sent me on my way with the car smelling like gas. After days of driving with the smell of gas, the service engine light on, and the car stalling I took back into the dealer. Now they are telling me that the fuel pump is broken and they want me to pay for it. This does not seem right. What happened. This seems to me something that the mechanic messed up...
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I have a 2012 prius c with 72k miles. When i bought the car, it took a while for the fuel economy to increase. i drive 100 miles a day at 85mph and topped out at 52mpg. pretty damn good, if you ask me. im all interstate with very little city driving.
2 years later, its time to get new tires and ever since i changed them, my fuel economy has decreased to 45mpg.
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So I bought a used 2010 Gen 3 with ~26,000 miles on it in July 2013. I started out getting 48-52mpg depending on where I was driving. I live in Raleigh, NC and I did notice a drop in drop in MPG over the winter ranging between 44-48mpg but the mpg never rose again as the months warmed and I averaged 44-46mpg for most of the summer. After changing my tires a few weeks ago I've dropped to about 40mpg regardless of where or how I drive. I bought Pirelli P4 Four Seasons 195 65R15 91T and have them inflated to the levels recommended by Toyota. 35/32 or something like that. Is it the tires or is there some other possible issue?
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I recently had my 2013 Lexus RX 350 15,000 mile service which included tire rotation and balance. The service was performed at the dealership where I bought the car. Less than two weeks later, both tires on the left side went COMPLETELY flat. The front tire so flat that it was actually coming off the rim when I stopped the car because it was driving funny. The distance was out of my garage and down the driveway. The serviceman initially said it was a slit on the outer edge of the tire. Now they are saying it was a pinhole in both tires. Is it possible something could have gone wrong during the servicing to cause the tires on my brand new car to go flat?
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In the 30,000 miles I have driven my Gen III, it has gone through three different sets of tires. Driving conditions during this entire time have been identical, and temperatures have been fairly constant. Therefore, I think my fuel economy data can be a good example of the impact that tire selection can have on your fuel economy.
I currently have 2400 miles on the Michelin Energy Saver A/S. These are the MPG stats, manually calculated.
Highest: 53.4
Average: 48.2
Lowest: 45.0
Standard Deviation: 2.4
In the 14,000 miles I had the Michelin Primacy MXV4, these were the mpg stats:
Highest: 50.1
Average: 42.7
Lowest: 37.0
Standard Deviation: 2.6
(I may be missing 2-3 tanks, so this is probably 90% of the fill-ups during the time in which I had the Primacy MXV4.)
Lastly, in the 14,000 miles that I had the OE Yokohama Avid S33d Tires, these were the MPG stats.
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This Easter I put summer tires on my "new" (owned about 4 weeks) prius -07, and cleaned and greased brakes.
With winter tires (almost new Nokia hakka xx, stud less) I got 4.5 l/100km (52mpg) easy and 4.2 (56mpg) at best, now I get 5.5 (42mpg) and 5.3 if I struggle, if I relax and put cruise control on I get 5.8 (40mpg). I travel 100km to work every day.
Summer tires is Michelin primacy (about 2 seasons?) pumped to 3.0/2.8 bar (over inflated).
Brakes don't seem hot after drive and they was really clean and easy to move after my service so my guess is that they work fine...
Mileage went down over the weekend so I see a clear link.
It was more fun trying to hypermile at 56mpg aiming for 60 then it is at 42 aiming for 45...
12v battery charged, just in case. Still same temperature out 1-8 C. Oil and all filters changed first week (will change trans axle oil in summer). Travel to work got 4% shorter so tire size must be a small reason to the +20% problem.
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