2010 5.4L f150. Bad mileage
#1
#2
#3
#4
Where do you live?
Winter gas?
Long idle times to thaw ice off windshield?
Stop and go city driving in cold slippery conditions?
I've added air to tires 3x in past 2 months since cold weather started, each time they are down 2-3lbs. In past 2 months our temps have gone from 10*c to minus 5-8*c so tires need frequent attention.
So many variables, hard to narrow it down to one single thing at this time of year if you live in cold climate.
Winter gas?
Long idle times to thaw ice off windshield?
Stop and go city driving in cold slippery conditions?
I've added air to tires 3x in past 2 months since cold weather started, each time they are down 2-3lbs. In past 2 months our temps have gone from 10*c to minus 5-8*c so tires need frequent attention.
So many variables, hard to narrow it down to one single thing at this time of year if you live in cold climate.
#7
Ok good to know that 27/100km is unheard of. I know it's accurate because I reset it when I took a trip down south an I hit as low as 14L/100km. As soon as I got back to town it's been. Gas guzzler. The cam phaser has been bad since I bought it and the dealerhip has to see it to fix it, could this be the problem. It's been warm out so it has almost no idle time.
Here's a vid of when the knocking happens. I think it's a phaser
The truck is still under warranty. What should I expect from the dealership about this fuel mileage problem?
4496EB21-78A0-4A2C-8291-074E5B8E359B-662-00000126ABA2E2EE.mp4
http://i303.photobucket.com/albums/n...26ABA2E2EE.mp4
Here's a vid of when the knocking happens. I think it's a phaser
The truck is still under warranty. What should I expect from the dealership about this fuel mileage problem?
4496EB21-78A0-4A2C-8291-074E5B8E359B-662-00000126ABA2E2EE.mp4
http://i303.photobucket.com/albums/n...26ABA2E2EE.mp4
Trending Topics
#8
#9
My leveled '10 and oversized 295/70/18 tires gets the standard 17 or 18 L/100km. I run a tuner with custom tunes, but the minimal fuel savings that I may be able to stake claim to are blown out the door by my heavy foot, and desire to beat everyone else off the light.
Before anyone argues, the tire sizes have been recalibrate to be true to actual highway speed. In theory, my lie-o-meter should be deadly accurate. If I can run 17 with heavy mud tires, on the same engine, same year.......... you got troubles. How does your exhaust smell?
Before anyone argues, the tire sizes have been recalibrate to be true to actual highway speed. In theory, my lie-o-meter should be deadly accurate. If I can run 17 with heavy mud tires, on the same engine, same year.......... you got troubles. How does your exhaust smell?
Last edited by canadianelbow; 01-05-2013 at 12:18 AM.
#10
#11
I had to go online http://www.aqua-calc.com/convert/fue...-100-kilometer to find a conversion chart, but over 42K miles, my truck "averaged" 15.2 L/100km. My normal driving is about 70% rural/suburban, 10% stop-and-go, and maybe 20% highway which, depending on the time of day can be stop-and-go as well. On my last highway trip, it averaged only slightly better.
#13
#14
Here's a UPDATE!
Since going into the dealers twice for this issue and bad knocking cam phasers they said they cannot duplicate the knocking sound and therefore they can't fix it. They said to bring it by when it starts happening. Saturday while at Walmart it started knocking badly so raced across town to the dealers, only to wait for 45 mins By the time try looked at it it stopped. So **** them
Today I brought it too another ford dealer in town and explained. I showed them the video of the knocking and no questions asked they booked me in to get the phasers replaced. Try disent even have to look at te truck
They said the bad mileage is caused by the phasers and it causes the engine to run rich, in some cases the fuel can be seen leaking out of the exhaust. Hope this helps anyone in the future with the same problem
Since going into the dealers twice for this issue and bad knocking cam phasers they said they cannot duplicate the knocking sound and therefore they can't fix it. They said to bring it by when it starts happening. Saturday while at Walmart it started knocking badly so raced across town to the dealers, only to wait for 45 mins By the time try looked at it it stopped. So **** them
Today I brought it too another ford dealer in town and explained. I showed them the video of the knocking and no questions asked they booked me in to get the phasers replaced. Try disent even have to look at te truck
They said the bad mileage is caused by the phasers and it causes the engine to run rich, in some cases the fuel can be seen leaking out of the exhaust. Hope this helps anyone in the future with the same problem
#15
WTF is a cam phaser anyway? Anyone got a picture of one, and where it is located on our 5.4's?
I've heard several complaints about these things, and by the sounds of it, it almost seems like a part that is destined to fail. Therefore, once our trucks are out of warranty, what is involved in changing them? Are they covered under the power train warranty, or just the original bumper to bumper? How many are there? How much $ are they? And is it a DIY job, or something that needs to be scanned and software updates done by a dealer scan tool?
I've heard several complaints about these things, and by the sounds of it, it almost seems like a part that is destined to fail. Therefore, once our trucks are out of warranty, what is involved in changing them? Are they covered under the power train warranty, or just the original bumper to bumper? How many are there? How much $ are they? And is it a DIY job, or something that needs to be scanned and software updates done by a dealer scan tool?