2011+ 55-60mph 5.0 Shuddering and EcoBoost Engine Miss/Loss of Power - Possible Fixes
06-02-2012, 09:55 PM
#1501
Senior Member
Buy one for me to.... please. I only thing i have noticed is going up hills at 55, a quick blip to get it to downshift to 5th and its good to go. I can't duplicate though, it happens when it happens
Last edited by f150man3.5; 06-03-2012 at 01:41 PM.
06-03-2012, 03:19 AM
#1502
Senior Member
definitely two different problems. i have a 5.0 and i have the shake... it's not a misfire. i have had the update and never an issue since.
i just had my tires rebalanced and front end checked.... still have the shake. it will shake in neutral at around 55mph and downshifting to 5th and 4th at around 55mph.
this tells me it's either suspension, steering rack, 4wd coponents still spinning while not supposed to, or brakes.
it also tells me it's NOT the rear drive shaft, NOT the tires, NOT the transmission, and NOT the rear end.
i really think it's the steering rack. it's been problematic and has a loose feeling at all speeds. i have had mine replaced twice.
i just had my tires rebalanced and front end checked.... still have the shake. it will shake in neutral at around 55mph and downshifting to 5th and 4th at around 55mph.
this tells me it's either suspension, steering rack, 4wd coponents still spinning while not supposed to, or brakes.
it also tells me it's NOT the rear drive shaft, NOT the tires, NOT the transmission, and NOT the rear end.
i really think it's the steering rack. it's been problematic and has a loose feeling at all speeds. i have had mine replaced twice.
After reading people describe this as a shake/vibration, I think there may be even more than two issues. When my truck does it, you can hear the turbos blow off, and the truck pulsates into/out of boost(or misfire?) enough that you can actually hear it AND feel the truck jerk back and forth. I'm not an expert, but maybe this condition is related to the intercooler condensation. As it builds boost and load is added going uphill it throws water into the engine? Causing a misfire which in turn screws with the turbos?
My issue is definately not just a vibration or shaking as some seem to describe it. Maybe they are all related? Just interesting to read the differing descriptions.
Mine has seemed to get better now with warmer weather, but I have felt it on a few occaisions, just yesterday in fact. I have had the fall on its face issue twice. I believe on my truck my issues are all related to condensation in the intercooler.
My issue is definately not just a vibration or shaking as some seem to describe it. Maybe they are all related? Just interesting to read the differing descriptions.
Mine has seemed to get better now with warmer weather, but I have felt it on a few occaisions, just yesterday in fact. I have had the fall on its face issue twice. I believe on my truck my issues are all related to condensation in the intercooler.
06-03-2012, 08:48 AM
#1503
Senior Member
Well, I guess I am a new member of the shudder club. I am not 100% certain it is this specific issue, but I will put it here.
Last night while driving on the highway at about 65-70, I had to slow due to a person in the left lane deciding they needed to cross 6 lanes of traffic and get off the highway immediately. I slowed to maybe 60. Since there was no one in front of me, I gunned it to speed back up...and went no where. The truck seemed to downshift once or twice, and the RPM went from under 2,000 to 3,000 or a little higher, and was most definitely shaking. I asked my wife if she noticed that, and she responded, "Yeah, it felt like the whole truck was shuddering."(Note: we have never talked about the issues I have read about here.)
I let up on the gas, and was able to continue driving and slowly accelerate, and got over to the right. After a couple of minutes, I tried to accelerate normally and everything seemed okay. Later that night, I could not replicate the issue.
Technical details:
2012 F150 FX4 Ecoboost
800 miles on the Odometer
Temp: 63 degrees
Weather: Moderate rain
Road: Highway, slight incline
Other than this incidence, the truck has been running great. I'll definitely monitor this to see if action is required.
Last night while driving on the highway at about 65-70, I had to slow due to a person in the left lane deciding they needed to cross 6 lanes of traffic and get off the highway immediately. I slowed to maybe 60. Since there was no one in front of me, I gunned it to speed back up...and went no where. The truck seemed to downshift once or twice, and the RPM went from under 2,000 to 3,000 or a little higher, and was most definitely shaking. I asked my wife if she noticed that, and she responded, "Yeah, it felt like the whole truck was shuddering."(Note: we have never talked about the issues I have read about here.)
I let up on the gas, and was able to continue driving and slowly accelerate, and got over to the right. After a couple of minutes, I tried to accelerate normally and everything seemed okay. Later that night, I could not replicate the issue.
Technical details:
2012 F150 FX4 Ecoboost
800 miles on the Odometer
Temp: 63 degrees
Weather: Moderate rain
Road: Highway, slight incline
Other than this incidence, the truck has been running great. I'll definitely monitor this to see if action is required.
06-03-2012, 04:53 PM
#1504
Senior Member
Join Date: Sep 2011
Location: Kansas
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Well, I guess I am a new member of the shudder club. I am not 100% certain it is this specific issue, but I will put it here.
Last night while driving on the highway at about 65-70, I had to slow due to a person in the left lane deciding they needed to cross 6 lanes of traffic and get off the highway immediately. I slowed to maybe 60. Since there was no one in front of me, I gunned it to speed back up...and went no where. The truck seemed to downshift once or twice, and the RPM went from under 2,000 to 3,000 or a little higher, and was most definitely shaking. I asked my wife if she noticed that, and she responded, "Yeah, it felt like the whole truck was shuddering."(Note: we have never talked about the issues I have read about here.)
I let up on the gas, and was able to continue driving and slowly accelerate, and got over to the right. After a couple of minutes, I tried to accelerate normally and everything seemed okay. Later that night, I could not replicate the issue.
Technical details:
2012 F150 FX4 Ecoboost
800 miles on the Odometer
Temp: 63 degrees
Weather: Moderate rain
Road: Highway, slight incline
Other than this incidence, the truck has been running great. I'll definitely monitor this to see if action is required.
Last night while driving on the highway at about 65-70, I had to slow due to a person in the left lane deciding they needed to cross 6 lanes of traffic and get off the highway immediately. I slowed to maybe 60. Since there was no one in front of me, I gunned it to speed back up...and went no where. The truck seemed to downshift once or twice, and the RPM went from under 2,000 to 3,000 or a little higher, and was most definitely shaking. I asked my wife if she noticed that, and she responded, "Yeah, it felt like the whole truck was shuddering."(Note: we have never talked about the issues I have read about here.)
I let up on the gas, and was able to continue driving and slowly accelerate, and got over to the right. After a couple of minutes, I tried to accelerate normally and everything seemed okay. Later that night, I could not replicate the issue.
Technical details:
2012 F150 FX4 Ecoboost
800 miles on the Odometer
Temp: 63 degrees
Weather: Moderate rain
Road: Highway, slight incline
Other than this incidence, the truck has been running great. I'll definitely monitor this to see if action is required.
Generally the "shudder" problem is you're just driving constant speed between 50-60mph and you encounter a long incline in the road or I've had it happen just into a stout headwind. It can be just a single jerk or a downward spiral of jerks if the turbos and waste gates start getting involved.
The other problem talked about here is the falling flat on its face when you need the throttle in high humidity. Generally it's after you've been cruising for awhile at low rpm like <65mph in rain or in just high humidity driving from warmer to colder air temp. So, you romp down on it and suck a bunch of water into the engine and it just completely bogs - no power, no downshift, nothing. Severity of the complete misfire appears to be a matter of how much water has collected from intercooler condensation. I guess your problem could have been a mild version of this maybe?
Last edited by canon_mutant; 06-03-2012 at 04:56 PM.
06-03-2012, 05:45 PM
#1505
Senior Member
Here are the codes from the check engine light flashing when it fell on its face and nearly got rear ended (po 300, 304, 305, 306). The last three are obviously misfires on cylinders 4, 5, and 6. The 300 code just said random multi cylinder misfire which means the other side was probably misfiring also. Funny thing is the second time this weekend when it fell flat on its face did not throw one code.
06-03-2012, 07:52 PM
#1506
Senior Member
Here are the codes from the check engine light flashing when it fell on its face and nearly got rear ended (po 300, 304, 305, 306). The last three are obviously misfires on cylinders 4, 5, and 6. The 300 code just said random multi cylinder misfire which means the other side was probably misfiring also. Funny thing is the second time this weekend when it fell flat on its face did not throw one code.
The slight skip on some hills is unrelated and something with the tranny and not sure if it should downshift.
06-04-2012, 09:52 AM
#1508
Senior Member
Took my truck to the dealer on Friday to get a side mirror replaced that spontaneously cracked as well as get the rear slider looked at which stopped working. Mirror is fixed, had to order rear slider motor.
While there I asked about any updates on the misfire/shudder/fall on its face issues. Talked with the service manager and some techs. Manager said he hasn't seen any new updates besides that engineering was looking into it. He seemed a little sour about it, said Ford Corp usually notifies everyone besides the dealers first when recalls/TSB's come out. Says several times customers have had to notify them of fixes and then Ford Corp sends out an email a day or two later. Techs said they haven't really seen anybody with this issue. They did say they see a lot of the faulty rear sliders.
Probably gonna try and hold off going back for the rear slider until the end of June when the supposed fix is going to come out. For those that mentioned they had heard it will be out in a couple weeks, please keep us posted.
The air was really dry on Friday here with very light wind and temps around 70 degrees. Drove like a Grandpa doing posted speeds(like 57 mph in a 55 zone), light acceleration, etc on the 42 mile drive back from the dealer. Truck was at 25.1 mpg when I pulled into my driveway. Humidity was way up over the weekend with temps in the 70's and I am sitting at just over 16 mpg right now. I don't believe this is a coincidence.
While there I asked about any updates on the misfire/shudder/fall on its face issues. Talked with the service manager and some techs. Manager said he hasn't seen any new updates besides that engineering was looking into it. He seemed a little sour about it, said Ford Corp usually notifies everyone besides the dealers first when recalls/TSB's come out. Says several times customers have had to notify them of fixes and then Ford Corp sends out an email a day or two later. Techs said they haven't really seen anybody with this issue. They did say they see a lot of the faulty rear sliders.
Probably gonna try and hold off going back for the rear slider until the end of June when the supposed fix is going to come out. For those that mentioned they had heard it will be out in a couple weeks, please keep us posted.
The air was really dry on Friday here with very light wind and temps around 70 degrees. Drove like a Grandpa doing posted speeds(like 57 mph in a 55 zone), light acceleration, etc on the 42 mile drive back from the dealer. Truck was at 25.1 mpg when I pulled into my driveway. Humidity was way up over the weekend with temps in the 70's and I am sitting at just over 16 mpg right now. I don't believe this is a coincidence.
06-04-2012, 04:57 PM
#1509
I wrote Ford a letter after my last incident where my truck failed during hard acceleration and fell flat on its face, almost causing an accident. It really scared the crap out of me. Ford responded "sorry we couldn't meet your expectations, we can not longer be of assistance". Really! in 50 years, I have never seen a poorer excuse for customer service. The expectation that your 46k truck won't surge, shudder and hesitate, is really not asking for much...but to ask for a truck that won't die completely when accelerating on to a busy highway (and not even throw as much as a check engine light). I think that should be the minimum expectation with any vehicle.
This is just so sad.
This is just so sad.
06-04-2012, 10:17 PM
#1510
Drove mine Sunday about 50 miles r/t on flat I-5 freeway, no wind, was cloudy but almost 70 and dry. Avg 20 mpg ... today drove 100 miles r/t same flat I-5 freeway except it was upper 50's and rain. Avg 16 mpg.