2010 5.4L outperforms 2011 ecoboost
Mike Levine towed 9,000 lbs in AZ on absolute for gas, 85 to 87. That was his mistake. He said he had no idea what it was supposed to take for fuel. Mike had no problems with overheating, but the outside temp was probably cooler as it was in April.
http://blogs.cars.com/files/mileage-chart.pdf
http://news.pickuptrucks.com/2011/04...rt-1.html#more
http://blogs.cars.com/files/mileage-chart.pdf
http://news.pickuptrucks.com/2011/04...rt-1.html#more
Last edited by Bluejay; Dec 27, 2011 at 11:38 AM. Reason: language
OK.... Great news (I think, anyway 
This afternoon I took my truck over the same pass (twice) where the overheat occurred and it worked perfectly both times. I drove the speed limit or 5 over. Here are the minor differences from last time:
1) I used 91 Octane vs 88 Octane (BIGGEST FACTOR and probably the reason it worked so well)
2) My load was about 300 lbs lighter... negligible in my opinion. (6700#'s vs 7000#'s with an 11,000 lb capacity)
3) OAT was about 5*-7* less.
4) While I didn't beat my truck up the day the overheat occurred, I was obviously more aware of my driving technique this time.
Again, the truck drove like a dream! I averaged over 9 mpg from Durango to Wolf Creek Pass... up and down twice... then back home at 60-65 MPH. The trans stayed well in the normal range as did the coolant temp. The coolant temp did rise about 1/8 gauge, but that was about it.
Referring to some comments above... I was told there was no code because it was only a momentary problem... less than 30 seconds in my case. Some codes don't clear on their own and some do if the problem is not persistent enough.
I think the gas/quality/air theory is very credible. Besides that one time problem (at the beginning of a 2500 mile trip, by the way) I have had absolutely no other issues.
Bottom line.... I HIGHLY recommend the F150 ECOBOOST. It's a blast to drive without a tow vehicle and a joy to drive with one.
I don't know for sure if fuel was my problem... but it's working great now.
Hope this helps.

This afternoon I took my truck over the same pass (twice) where the overheat occurred and it worked perfectly both times. I drove the speed limit or 5 over. Here are the minor differences from last time:
1) I used 91 Octane vs 88 Octane (BIGGEST FACTOR and probably the reason it worked so well)
2) My load was about 300 lbs lighter... negligible in my opinion. (6700#'s vs 7000#'s with an 11,000 lb capacity)
3) OAT was about 5*-7* less.
4) While I didn't beat my truck up the day the overheat occurred, I was obviously more aware of my driving technique this time.
Again, the truck drove like a dream! I averaged over 9 mpg from Durango to Wolf Creek Pass... up and down twice... then back home at 60-65 MPH. The trans stayed well in the normal range as did the coolant temp. The coolant temp did rise about 1/8 gauge, but that was about it.
Referring to some comments above... I was told there was no code because it was only a momentary problem... less than 30 seconds in my case. Some codes don't clear on their own and some do if the problem is not persistent enough.
I think the gas/quality/air theory is very credible. Besides that one time problem (at the beginning of a 2500 mile trip, by the way) I have had absolutely no other issues.
Bottom line.... I HIGHLY recommend the F150 ECOBOOST. It's a blast to drive without a tow vehicle and a joy to drive with one.
I don't know for sure if fuel was my problem... but it's working great now.
Hope this helps.
2010 5.4L outperfoms 2011 ecoboost...follow up
Hi everyone and sorry I didn't respond back in August after returning from our trip. I wanted to let everyone know that once I returned, I did take my truck back to the dealership to have them check for codes. There were no codes detected from when the truck overheated!! It's important to note that when I use the term "overheated", it didn't overheat in the old sense in that we were stranded with no water in the radiator, bad thermostat, busted hose, etc. It overheated in the sense that the engine temperature rose significantly and got close to red in the first run of that climb and then reached red in the second run after the rest stop and I got the message that the computer was reducing power to prevent overheating. I had to slow down to a crawl and the 2010 5.4L left me behind and went right up the climb...again, my brother-n-law said his temp gauge never moved. As I slowed down, the engine temperature quickly returned to normal, so we were never stranded...it scared me big time when it happened because I was thinking we were going to be stranded. Now I understand that in those extreme conditions, you need to pay close attention to the engine temp and reduce power when needed to cool the turbos. Toward the end of the trip, we faced another climb coming out of New Mexico entering Texas and as long as I slowed down significantly and down shifted to third, and even second (at roughly 3000 to 3500 rpms), I had no problems. I already have 27,000 miles on my truch (heavy driving with my job...no pulling) and I have not had any issues....it still runs like a dream. Good luck to all...
maybe i missed it but what he towing? was it comparable? A difference in 1000lbs can be big difference. Also not so sure I would tow a 9k travel trailer with a 1/2ton, those things can be sails and really make any truck for their money,
This whole bit about the truck not storing any codes bothers me... when there was an issue "even a message indicating an issue" bothers me more... Case in point, my coworker had a problem with his brand new 5.0 f150. On cold mornings the truck would stop responding to throttle input and idle rough... he had to coast to the side of the road. Stop the engine and restart "sometimes this could happen 3 times in 11 miles to work. He said the Wrench icon came on the display each time. He took the truck to Ford and everytime they told him there was no code stored.. seemed to doubt his story. He left them the truck for 4 days and they finally told him they had to replace the throttle body.... Still no code but the problem happened to the tech...Since that time no other problem... Funny part is have the EB and he wanted to stay away from "potential" problems
It can happen to anyone!
It can happen to anyone!
This whole bit about the truck not storing any codes bothers me... when there was an issue "even a message indicating an issue" bothers me more... Case in point, my coworker had a problem with his brand new 5.0 f150. On cold mornings the truck would stop responding to throttle input and idle rough... he had to coast to the side of the road. Stop the engine and restart "sometimes this could happen 3 times in 11 miles to work. He said the Wrench icon came on the display each time. He took the truck to Ford and everytime they told him there was no code stored.. seemed to doubt his story. He left them the truck for 4 days and they finally told him they had to replace the throttle body.... Still no code but the problem happened to the tech...Since that time no other problem... Funny part is have the EB and he wanted to stay away from "potential" problems
It can happen to anyone!
It can happen to anyone!
__________________
Jim
Jim
He said the Wrench icon came on the display each time. He took the truck to Ford and everytime they told him there was no code stored.. seemed to doubt his story. He left them the truck for 4 days and they finally told him they had to replace the throttle body.... Still no code but the problem happened to the tech...Since that time no other problem...
How did they know to replace the TB? I find it very hard to believe there were no stored codes in history. I wouldn't take my truck back to that dealership if I was him.
Get the OBDII Plug in and Torque app for Android phones and you have a code reader plus a bunch of other stuff...
https://market.android.com/details?i...=search_result
http://www.ebay.ca/itm/ELM327-OBD2-O...#ht_4016wt_974
https://market.android.com/details?i...=search_result
http://www.ebay.ca/itm/ELM327-OBD2-O...#ht_4016wt_974
Last edited by bosro; Jan 2, 2012 at 11:25 AM.
Get the OBDII Plug in and Torque app for Android phones and you have a code reader plus a bunch of other stuff...
https://market.android.com/details?i...=search_result
http://www.ebay.ca/itm/ELM327-OBD2-O...#ht_4016wt_974
https://market.android.com/details?i...=search_result
http://www.ebay.ca/itm/ELM327-OBD2-O...#ht_4016wt_974
Could Fuel be the issue?
Mike Levine towed 9,000 lbs in AZ on absolute for gas, 85 to 87. That was his mistake. He said he had no idea what it was supposed to take for fuel. Mike had no problems with overheating, but the outside temp was probably cooler as it was in April.
http://blogs.cars.com/files/mileage-chart.pdf
http://news.pickuptrucks.com/2011/04...rt-1.html#more
http://blogs.cars.com/files/mileage-chart.pdf
http://news.pickuptrucks.com/2011/04...rt-1.html#more
Vapor locking use to be a big issue in older vehicles and was more of a problem with ethanol.
Is it possible to take an engine running 1300 Degrees on a hot day with a little ethanol blend gasoline, a fuel system so high tech that it is suppose help cool the engine by the direct injection to the pistons, and a little pre ignition of the fuel and possibly create this type of problem?
I know around here the some of the gas stations state in small print "All of the fuel at this location contain ethanol". Even though they offer 87,89, and 91 grade.
It can happen and it does happen all of the time unfortunately.



