Prius (2004-09) :: High Mpg (km Per Liter) At Idle Speed


Jul 2, 2011

I am a new buyer' bought my prius 2008 about a week ago. the is something i cant understand, when a the engine runs at idle speed, the fuel consumption monitor shows 99.9 km/liter ! ! ! and it's also calculated at the average... is it something i should worry about ?

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Prius (2010-12) :: High Engine Idle Speed - 2500 RPMs

Had a first-time issue with my car today. Background, 2010 II bought in June, just short of 15K miles, never had any kind of mechanical issue.

While en route to work this morning, I was about halfway into my 15 minute drive to work, when I noticed my engine was idling very high, I would guess 2500 rpms. It started doing it while I was driving around 35 MPH, then continued doing it while I stopped at a traffic light, and continued when I continued driving to a speed around 50 MPH. The high idle while stopped was not transferred to the wheels, so it was not a safety issue as it would be in other cars.

When I got back up to 50, curious to try something, I hit the ECO mode button and the car returned to normal. I took ECO back off and the car was still fine. I had no further problems.

I would point out that this morning was about the coldest temp that the car has experienced. Outside temp ranged from 7 to 10 degrees.

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I've got an '04 Pkg IX with about 68k miles on it.

I've noticed that at speeds of greater than 60mph there is a distinct ticking noise (like the sound a bicycle makes when you turn the wheel "tick tick tick"). The noise is coming from the front end, sounds like near the passenger area.

The minute you drop down to speeds of around 50 or less it goes away.

I'm probably going to have to take it in to the dealer since I've already had an indy look at it.

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Prius (2004-09) :: 2005 - Radiator Fan Does Not Go Into High Speed

How the radiator fan goes into high speed? My 2006 Prius A/C works great as long as I am moving. But when stopped in traffic or at a light, the radiator fan does not go into high speed. So the A/C shuts off until I can get cool air back through the condenser.

I replaced the two fan relays, and when I do the fans run into high speed for a moment, then back to slow speed. Is there a temperature sending unit in the Prius I can replace?

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Prius (2004-09) :: Surging - Traction Control Engages At High Speed

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Prius (2004-09) :: 2006 - A/C Blower Speed Slows Down When Set To High After Running For A While?

I have a 2006 Prius and lately, the fan will stop blowing hard on long drives on hot days when the fan is set to High. This happened on a 3 hour trip on the interstate and again when I was driving some back road for about 2 hours. The first time, I noticed the cabin temp was getting hotter so I went to switch the fan speed higher and noticed it was already on high. It was not set to Auto.

When I got home, I let the car cool down for about 30 minutes and when I turned on the car, the AC was blowing full speed and was getting cold like normal. When the fan speed slowed down on its own on the interstate, it was probably blowing at a speed similar to what the fan would normally blow if set to the middle position or maybe even below that. Why the fan would slow down on its own when set on high.

I also just checked the temperature coming from the vent after running the AC on LO temp for about 10 minutes. It was reading 50 degrees with a digital meat thermometer and 46 degrees with an infrared thermometer. So, when the car is cool, the AC seems to be working fine. Just wondering about the fan speed and the fact that the car gets really warm when it slows down on its own.

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I have a hyundai accent 2005 sedan (automatic transmission). The vehicle is a NON-US model. My gas consumption is approximately 7.3km per litre which is very high.

The spark plugs have been replaced , tires are at 30psi , and air filter is new. The spark plug cables are also new. The obdII device does not detect any issues and the engine check light is also off.

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I've noticed the last few days that my Prius seems to be dropping MPGs horridly (even worse than the typical winter drop). The engine will idle hard and loud when stopped sometimes or when braking even. I noticed this morning, when I am braking to a stop, the MPGs are registering at 75 or below and it's running when idling and it seems to be running the gas engine more. It will sometimes shut off at a stop light, but hardly at all the last few days regardless of if it's been running 5 minutes or over an hour.

I thought maybe it was because it's cold-- we've dipped to single digits, but have been above 30 or so the last week or two and has only happened in the past two or three days. It happens at start up and at the end of my hour long commute to work. I've turned off the defrost and heat and it still does this.

She's a 2005 and has just over 105,000 miles. I just had her oil changed, a fuel injection cleaning and spark plugs replaced two days ago and had the inverter serviced and recommended transmission work done at 100,000 miles. Her water pump was replaced in the last year with the recall. I just replaced the air filter. There are no warning lights, so I"m not sure if anything would show up with the codes. I'm worried because it did not do this previously, and started to as soon as I got the car back from the injector cleanings and plug work...

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Camry 2000 CE 102,xxx miles. My car died in Jan 14, after have P0770 for while, only Reverse gear work. The mechanics said the tranny need to re-build. I had him bring the tranny to tranny shop to re-build ($1650), then the code still pop up. Brought it back, they said the ECU needs to be reset. I had the car next day then that code pop up again!

They replaced the Solenoid E. The code is still there. Brought the car back, they took the tranny to rebuild it again. Drive the car for a day, the darn code pop up again, now they blamed on the ECU. Ok my mechanic guy replaced it at my own cost for part ($150) but the code is still there. This time they blamed on the high idle rpm approx. 1600-1800. My mechanic tried to fix the high idle speed so the tranny stop blaming other causes. He cleaned IAC valve, replace O-rings (I don't remember the location of them) then he said whenever he inserted the new ones, they start to crack!

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Jeep - Grandcherokee :: High Idle Speed And Trying To Shift While At Highway Speeds

2004 Grand Cherokee. I was pulling a heavy trailer 1000 miles, and while coming down a mountain pass 50 miles from the end of the trip the check engine light came on. All other gauges (oil pressure, temperature, etc.) had not changed while climbing or descending and I was in low gear while descending to save the brakes. I drove the rest of the way to the destination without incident. I tried turning the Jeep off and restarting it several times to see if the check engine light would turn off and it stayed on. The next morning the light was off when I restarted it and has not come on again since. I hooked it up to a scan tool and received 2 codes: P0152 and P0132. 2 days later I noticed that it was revving high while idling and in Park. It would rev between 1500 and 2200 RPM while in Park, and at 900 RPM while in Drive. Also, while travelling at freeway speeds it seems like it's trying to downshift for no apparent reason. I hold the throttle still and have even tried cruise control and it intermittently increases engine speed, without changing ground speed. I assumed that I got the transmission too hot while climbing/descending and that the error codes listed above (related to O2 sensors) were associated with that, but now I'm wondering if something more has happened.

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Sonata NF (2006-10) :: High Idle Speed About 1200 RPM On Cold Start

Bought my 2006, V6, about 2 months ago. This morning was the first really cold once since I bought the care. When I started it today, the idle speed was about 1200 RPM. It took a few minutes to warm up and then the idle speed dropped to normal. Quick question. Is this normal?

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S-10 :: 1998 Blazer - P0507 Idle Speed High / Low And P0446 Evap System

I have a 1998 blazer 4x4... I had a issues with the car before and I had to turn the idle screw up until I fixed my problem. I now fixed my problem and I need to know what my idle rpm should be at.

After I fixed the original problem after about a day of driving I had a P0507 Idle speed High/Low. I turned the set screw down and lowered my rpm. After about 5min of driving the code went away on its own.

About 1 week later I am now getting the P0507 again and now it has a buddy. P0446 Evap System.

Questions what would my idle rpm be? Can the high rpm cause the EVAP code as well.

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