Sonata NF (2006-10) :: 2007 GLS - Slow Acceleration And Poor Mileage
2007 Sonata GLS - I4; 55kmiles ... I plan to sea foam on my Sonata as it continues to have slow acceleration and poor mileage. Looking for a picture of the Brake Booster or Vacuum line? I want to make sure I am pouring it in the right place.
View 3 RepliesFord :: 2007 - Poor Gas Mileage?
I have a 07 Ford F150, 4.2 liter V-6, that the city gas mileage has fallen from 17 to 12.5, highway from 22 to 16.5, in that last year or so. Two garages have ran a test on the computer and can find nothing wrong.
View 5 RepliesTiguan :: 2012 - Poor Fuel Mileage?
My wife and I just purchased a 2012 SEL front-wheel drive. Our first tank (mixed use) was 19 MPG. We took the vehicle on a roadtrip this weekend that was 95% highway driving on mostly flat Texas roads using cruise control as much as possible. Our best tank was 23.3 which was achieved driving 70-75 MPH on I-20. Is this consistent with what others are seeing? My mileage figures are at the link below. Note, all values are calculated by me, not the MFD that reads about 1 MPG high.
[URL]
BMW - 325 :: Getting O2 Sensor / Code P2231 - Poor Gas Mileage
Having O2 sensor bank 1 heater circuit short on a 03 BMW 325i. Changed O2 sensor, reprogram DME - no solution!
Symptoms: check engine light - code p2231 Engine surge upgrade Poor gas mileage
Honda - Accord :: 2011 - Poor Gas Mileage?
I have a 2011 honda accord with 15,000 miles on it that Has only gotten 20mpg since it was new. It is supposed to get 23mpg city and 34mpg highway. I figured I was the tires but since fixing the leaking valve stems it is still only 20mpg. I asked the dealer about it several times during oil changes after I first bought it and they claimed to look into it and find nothing wrong. Is there anything I can do to fix this or would it be covered under new yorks lemon laws?
View 19 RepliesPrius (Gen 2) :: Poor Gas Mileage And Transmission Not Going To High Gear?
My 08 has been getting poor mileage for the past 3 weeks or so ..... I tried a "push the power button and trip reset shift to reverse to eliminate the backup beep" mod and it did not work. However I find now that I cannot get my MPG average above 42. When I tried the mod the odometer went immediately to all bars and then the bar indicators went out one by one until the regular odometer reading came on .... I'm wondering if doing that also set the car into another "mode" where the tranny will not shift to a higher gear???? So symptoms are constant engine running when cruising to a stop and after 20-30 seconds the motor will shut off .... and while driving on the highway the engine will pick up at least 1000 - 1500 rpms just by adjusting the accelerator a smudge .....
View 19 RepliesGTI 337/20th Anniversary :: Poor Gas Mileage - Got CEL For Coolant System
What these codes mean and what I need to do to fix this?
Codes:
P0141 o2 sensor heater circuit bank 1 sensor 2
P0138 o2 sensor circuit high voltage bank 1 sensor 2
P0036 H02S heater control circuit bank 1 sensor 2
Ford F-150 (2009-2014) :: 2012 - Got Poor Mileage - 11.4 Mpg?
I have a 2012 f150 stx 5.0 and I drive mostly city with a few highway miles. Why get this bad of gas mileage?
View 8 RepliesSilverado :: Burning Too Much Oil Between Changes - Level Low On Dipstick
I don't know what would be considered a normal amount of oil to be used between changes but my 08 w/5.3l seems to be going through too much. Since I've had the truck,about 7.5 months, I've changed to oil once converting it over to Amsoil. When I changed it I noticed the level was lower than what I expected on the dipstick, like 2 quarts low and the oil life meter is showing it's almost time for another change but I had to add a quart about 3 weeks ago because it was down.
View 14 RepliesPrius (Gen 3) :: Checking Oil Level Without Using Dipstick?
I know that when the engine oil level is low a screen will pop up saying to replace the oil.
Is there a way to check the oil level without having to use the dip stick?
On my old HCH it would display the oil life on a side toggle display.
Audi - A6 :: Unable To See The Oil Level On Dipstick
I am unable to get a reading from my oil dipstick and I am wondering if this is an indicator of an upcoming problem. I tested my car the day after I got it serviced at the dealer - It was a major service where all oil levels and tune up had been performed. The car is parked on a street that can be qualified as horizontal surface and the engine hasn't turned yet. I pull the dipstick and it's full of oil. I clean it and retest and I get the same results where the stick is fully covered with oil. I tried all the tricks I heard of - got a new dipstick, changed the oil a second time and put the recommended volume of oil only to get the same results. How I can get an accurate reading - or maybe this may be an indicator of the engine going out or something.
The car in question is a 2002 Audi A6 3.0 V6 engine all wheel drive and about 140K miles on it.
Alero :: 2000 2.4 - Skipping And Rough Idle - Poor Gas Mileage
I have a 2000 Alero w/ 2.4 103,000 miles auto. I have been trying to fix a problem for about 3 months. It all started one night when i got stuck in my backyard in about a foot if mud. I thought i could drive it out, but when the wheels would spin and traction control would limit the rpms. After getting out the car would skip every now and then going up an incline at highway speeds in 4th gear (drive) then it would skip while idling. I could get it to run smooth if i hit the pedal and made it shift to 3rd. I drive this car daily and the problem has got worse slowly. Now its hard to crank and when it does there is a small amount of white smoke with strong gas smell while the motor spudders for about 10 secs.
It will finally "clear" up and still misfire every few secs or just cut off. Gas mileage is terrible between 15-18mpg. The engine light and trac off light has only been on twice. Both times the code was for random misfire of multiple cylinders. I have put plugs, boots (wires), distributor, 2 fuel processor regulator, seafoam, all octanes of gas, pulled injectors (looked ok a little dirty but still could be one) and I have ordered ignition control module. Its getting hard to drive and even harder to sell. It has just started the white smoke and gas smell and i think its that's the pressure regulator, but the skipping and rough idle....
Honda - Accord :: 1998 - Vapor Leak And Poor Gas Mileage
I have a 1998 Honda Accord, automatic with 179,000 miles. The malfunction indicator light came on so I had the car smoked and found that it needed a purge valve. I replaced the purge valve and smoked the car again which indicated the car still has a vapor leak and the malfunction light stayed on. The only place visible smoke is coming from is from the fuel filler neck (place where fuel or gas is put into the car) when the gas cap is off. Where the leak may be? My car is also getting horrible gas mileage. I was going to replace the fuel filter but I heard it was in the gas tank, is this right and is it replaceable? Would replacing the gas cap work for either the vapor leak or gas mileage?
View 8 RepliesFord Ranger / B-Series :: 1983 - Poor Fuel Mileage?
I recently bought a 1983 Ford Ranger Diesel pickup truck (2.2L Mazda engine, manual transmission). The dealer said to expect a little above 30 mpg on fuel mileage but the two fill-ups I've done show an average fuel mileage of 22 mpg. About half of these are highway miles.
I thought diesels are supposed to have good mileage. Is this typical for my year and model truck? Is there any way to increase the mileage? I just replaced the air and fuel filters and also changed the oil and oil filters.
Passat (B6) :: Oil Level Low / Barely Get Reading On Dipstick
Car is burning through a higher than usual amount of oil? I just went to the dealer to do an oil change because the oil was so low I could barely get a reading on the dipstick, no leaks were found, and the car does not smoke.
View 6 RepliesPassat (B5) :: 2001 VW - Rough Idle / Loss Of Power And Poor Gas Mileage
I have a 2001 VW Passat Wagon 1.8t AUG. A couple of months ago, I took it into my shop for a check engine light. The did the following work on the vehicle:
Replaced MAF sensor
Replaced broken oil level sensor
Replaced outer CV boots
Resealed my transmission pan (it was leaking)
Replaced bad vacuum hoses
When I got the car back, it was idling really rough, and one time it even stalled. Just after starting it, when I hit the gas it wouldn't respond immediately and sputtered for a little while. Once I got going it was usually OK, unless I was going uphill...where it wouldn't perform as well and the engine noise kinda wavered. I also noticed that my gas mileage wasn't nearly as good as it used to be. (I never experienced any problems like this before they did this work) So I took it back to the shop and they replaced both the front and rear 02 sensors. I still had the same problem, so I took it back, and they replaced the fuel filter. Still has the same problem.
The light came on after a month, so I took it back and it was the random cylinder misfire code...and they said that didn't really know what to do about it. So I decided to take matters into my own hands. I cleaned the MAF sensor they installed (took it out and sprayed it with cleaner) nothing. I replaced the spark plugs and while doing so found that one of my ignition coils was bad, and I replaced that as well. Turns out the AutoLite plugs that a local parts store sold me are crap for this engine (actually caused misfires) so I went and got Denso double platinum plugs the next day and put those in. And finally I changed my air filter. Still having problems.
Golf IV / Jetta IV :: 2000 - Won't Start At Cold / Poor Fuel Mileage
I own a 2000 Jetta VR6 5 speed. Car has over 300,xxxkm on it, with documented maintenance including chains within the past 12k. Car has intake, 2.5" resonated exhaust, stock software.
I have recently noticed that the car has a cold start issue. Its winter here in Canada, so in the morning when i go to start the car and let it warm up for a couple minutes, the idle is choppy at first and then evens out at around 900-1k rpm. If i try to blip the throttle, or even hold it (half way or WOT) the car just wants to bog out, EXTREMELY rough idle. It will eventually, after about 2 mins of idling, go away and i can drive.
I have absolutely no issue with allowing the car to idle for a few mins to warm up, but i know for a fact that whether a car is cold or not, it should be able to rev freely.
I also have horrible fuel milage. I use 91 octane, and average about 250-300km per tank. 70% city 30% hwy driving.
The following parts have been replaced in the past 1200 to try and resolve the issue
OE Mass air flow sensor
OE spark plugs
BREMI wires
OE Bosch front O2 sensor
I have scanned the car several times, which led me to change the parts i did. Only had a CEL once and it was for the front O2 sensor which i just replaced. Any other codes were for random multiple and a cat efficiency fault. Again those were fault found off a GFF test done at VW, they were not enough to trigger a CEL, but i still changed the parts.
Ford 6.0L Power Stroke Diesel :: 2005 - Poor Fuel Mileage?
I just bought my first diesel truck back in November. It's a 2005 F-250 with the 6.0L and the 5 spd torq-shift automatic tranny. Last weekend I drove the truck to South Carolina, about a 600 mile round trip from where I live. On the trip the truck only got 13 mpg! I wasn't towing a trailer and the truck was empty except for me and my suitcase. It's not loaded up with mods or anything, it's completely stock power wise.
I'm extremely disappointing, especially since a friend of mine has a 2006 F-250 identical to mine and he gets up to 21 mpg on his. What can be done to improve my mileage? I'm not a lead-footed driver, and the trip was done with almost all interstate and highway driving, very little driving on back roads or stop and go. If this is the best the truck will get, I'm going to sell it and buy a F-150!
Ford Excursion :: Low Power - Poor Mileage - Transmission Delay Going Into Reverse
For the past two years I've noticed a decrease in fuel economy and recently noticed that the truck did not "feel" as if it had the same power especially when towing. Checking all the usual suspects with the engine turned up nothing and the transmission wasn't showing any signs of problems other than an occasional delay going into reverse. But it had been doing that for years and so I just ignored it.
Recently the torque converter started acting up and had some other occasional shifting delays and so decided to put the vehicle in the shop. The electronics all checked out and so a HD rebuild kit was ordered. The truck was finished this morning. Just barely pressing the accelerator makes the vehicle instantly start forward with noticeable zip. Plenty of power at all speeds, the engine now feels like new.
I suspect the main culprit was the torque converter. It wasn't enough to notice in excessive rpms nor heat (at least according to the instrument gauge) but the loss is noticeable in hindsight when compared to the repaired system. Over the next few weeks I'll get some mileage numbers and will know for sure whether I've found the sole cause of my power problems but I am sure that I've made a fairly large step in solving them.