Prius (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 RepliesFord 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 Transmission :: 2005 F350 - 3 To 4 Seconds Delay When Trying To Engage Drive Or Reverse
Still having issues with the transmission on my 05 F350. I posted before that it would take a few seconds to go into drive or reverse. The fixes were to change filters and do hot flush. I had the dealer do a hot flush, and then I put about 1000 miles on it. That didn't seem to fix anything, so I went back in and asked for more info. They did not change the filters. I thought they did, but found out they did not after the fact, so I decided to change the filters myself.
The interior filter was easy to change. The fluid was clean, and the magnet had shavings on it but nothing that seemed extraordinary. The exterior filter is impossible to get off. I reviewed posts on here before trying, so first was the impact wrench, then the pipe wrench, then the pipe wrench with a block wedged in to keep the thing from bending, still no luck. The cast nut broke off well before the pipe wrench came out of the drawer. How to get that thing off. I read on here somewhere that no fluid goes through that until 180 degrees, is that correct?
Scanguage says it rarely goes over 160, except for last evening when I was stuck in traffic. It went to 187, with ECT at 208. During this period, traveling under 40 most of the time, the transmission was shifting erratically, to the point I wanted to pull over and allow it to cool down. But traffic broke free, speed went up, and temps went down. Shifting returned to normal, except when trying to engage drive or reverse. The 3-4 second delay persists at any temp, and there doesn't seem to be any slippage. Just delayed and sometimes hard engagements. I'm at a loss for whats wrong.
Ford 7.3L Power Stroke (1999-2003) :: Intermittent Throttle Response And Poor Fuel Mileage
I have read many different threads regarding the TPS sensor on the pedal and EBPV deletes on the E99 7.3L Powerstrokes. I am trying to troubleshoot some issues with my E99 7.3L. Usually on cool mornings and after not being started for awhile the truck will seem to be stuck in an Idle. This is an intermittent problem that doesn't always happen.
I cleaned the connections to the Tps and the IVS sensor and put them back in. No luck. On another note I am also seeing a reduction in fuel mileage and power like the truck is being restricted. I don't know if these symptoms are related or possibly their own issues. I am troubleshooting and possibly thinking it is the EBPV system that isn't working correctly. Considering doing an EBPV delete with a NON-EBPV Pedestal and Flange.
Ford 7.3L Power Stroke (1999-2003) :: 2001 - Rough Idle - Poor Fuel Mileage?
My7.3 is idling rough till I pull the fuse for the fuel pump them it will smoothen out I ran a by pass switch to us my truck but the fuel mileage is bad why
View 13 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.
Saturn - Sl :: 2002 - Automatic Transmission - Shifting Delay When Put In Reverse Gear
I'm having problems with my automatic transmission in a 2002 Saturn SL. About 2 months ago I noticed a delay when I would put my saturn in reverse and it would sort of kick into gear after a few seconds (up to 10seconds sometimes). I wasn't worried much about this at first until another problem started happening. Between second and third gear it seems to be shifting slow/hard(?). I can feel where it wants to shift, but its slow to shift and actual revs high before shifting down. The problem doesn't always exist, and some days its more then others. We took it to get a transmission fluid/filter change and this didn't solve the problem. Took it back for a transmission diagnositc and GM told us we need to replace the transmission or do an overhaul. They didn't explain why really though- no clear answer. I've heard everything from the torque converter to a solenoid problem.
View 3 RepliesMitsubishi - Galant :: 1998 - Delay In Transmission Development - Won't Engage In Reverse
I have a 1998 Mitsubishi Galant, 4cyl., 165, 000 miles. Without previous symptoms, one day the transmission developed a delay of 5 to 30-seconds before it would engage in reverse. The fluid was clean and I have been using the Mitsubishi brand that they recommend. So I replaced the original transmission with a used one. But the reverse delay continued, even with a different transmission. So I removed the used transmission and rebuilt the original one. The problem STILL remained. Since then, the valve body has been replaced and the speed sensor has been replaced. I cannot figure out why there is a delay when putting it into reverse. I ran out of solutions. I did notice one day that when I first start the car, and the engine is at 1000 RPM's or more, the reverse wouldn't engage. Then, as the RPM's dropped to about 200 RPM's, the reverse would engage. I thought maybe this would be a clue.
View 10 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 RepliesFord Excursion :: Power Windows On A Delay After Turning The Key?
I start the truck, but windows don't work. After 30 seconds or so, the lights on the window buttons light up and there's an audible beep, then they work fine. I discovered this when I turned the key to put the windows up when it was getting dark out. At first I thought they were dead all together, but after playing with it, I just had to wait for the beep. After testing, it was the same whether I just turned the key, or actually started the truck. Is this some sort of feature?
View 7 RepliesFord 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 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.
Ford Super Duty (1999-2016) :: 2005 V10 - Poor Throttle Response And Mileage
My friend has a F250. He was getting terrible mileage and the mechanic he took it to replaced the intake gaskets. After that the mileage went to 12 and he was happy. Now its down to 6-8, just highway. It seems to me the throttle response is terrible compared to my dad's 01 V10. And it sounds terrible. Exhaust manifolds aren't leaking that I see.
I've got AE and have hooked it up, but I'm really not very familiar with these trucks. I don't get any codes that would relate to anything. Had one trans sensor code but that was about it. Key on engine running test didn't say anything.
Tiguan :: 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 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
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 Replies