U.S. investigates 400,000 Ford F-150 trucks for engine problems
05-26-2013, 04:20 PM
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U.S. investigates 400,000 Ford F-150 trucks for engine problems http://www.detroitnews.com/article/2...ngine-problems
Washington -- The National Highway Traffic Safety Administration said Sunday it is opening a preliminary investigation into 400,000 2011-2013 F-150 trucks for acceleration problems
In a notice posted on its website, NHTSA said it has received 95 reports of incidents of reduced engine power during hard accelerations in 2011-2013 Ford F-150 trucks equipped with 3.5L gasoline turbocharged direct injection engines. Some complaints allege unexpected sharp reductions in engine power during hard accelerations at highway speeds, such as attempted merging or passing maneuvers.
NHTSA said Ford has issued three technical service bulletins related to intermittent stumble/misfire on acceleration from highway cruise in humid or damp conditions in some 2011 and 2012 F-150 vehicles equipped with 3.5L GTDI engines. The most recent bulletin includes procedures for diagnosing a condition related to moisture accumulation in the Charge Air Cooler during extended highway cruising at constant throttle in humid or damp conditions; and repairing the condition by reprogramming the powertrain control module with the latest calibration and installing a new CAC and air deflector plate.
NHTSA said one-third of the reports received say the incidents occurred while driving in humid or rainy conditions. Many complaints allege safety concerns associated with overtaking vehicles. No crashes have been reported in connection with the issue.
Ford's most recent technical service bulletin was issued on March 18. It notified dealers that the F-150 has an adaptive transmission shift "which allows the vehicle's computer to learn the transmission's unique paramters and improve shift quality. When the adaptive strategry is reset, the computer will begin a relearning process. This re-learning process may result in firmer than normal upshifts and downshifts for several days."
A technical service bulletin advises dealers on how to fix a potential problem. A recall is required when an automaker determines a potential problem poses an "unreasonable risk to safety."
Ford spokeswoman Kelli Felker said the automaker is working with NHTSA. "We will be cooperating with NHTSA on this investigation, as we always do," she said.
In a notice posted on its website, NHTSA said it has received 95 reports of incidents of reduced engine power during hard accelerations in 2011-2013 Ford F-150 trucks equipped with 3.5L gasoline turbocharged direct injection engines. Some complaints allege unexpected sharp reductions in engine power during hard accelerations at highway speeds, such as attempted merging or passing maneuvers.
NHTSA said Ford has issued three technical service bulletins related to intermittent stumble/misfire on acceleration from highway cruise in humid or damp conditions in some 2011 and 2012 F-150 vehicles equipped with 3.5L GTDI engines. The most recent bulletin includes procedures for diagnosing a condition related to moisture accumulation in the Charge Air Cooler during extended highway cruising at constant throttle in humid or damp conditions; and repairing the condition by reprogramming the powertrain control module with the latest calibration and installing a new CAC and air deflector plate.
NHTSA said one-third of the reports received say the incidents occurred while driving in humid or rainy conditions. Many complaints allege safety concerns associated with overtaking vehicles. No crashes have been reported in connection with the issue.
Ford's most recent technical service bulletin was issued on March 18. It notified dealers that the F-150 has an adaptive transmission shift "which allows the vehicle's computer to learn the transmission's unique paramters and improve shift quality. When the adaptive strategry is reset, the computer will begin a relearning process. This re-learning process may result in firmer than normal upshifts and downshifts for several days."
A technical service bulletin advises dealers on how to fix a potential problem. A recall is required when an automaker determines a potential problem poses an "unreasonable risk to safety."
Ford spokeswoman Kelli Felker said the automaker is working with NHTSA. "We will be cooperating with NHTSA on this investigation, as we always do," she said.
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05-27-2013, 05:34 PM
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Bout time. Mine has been in the shop twice. First time only a software update. Second time new CAC, coil pack, and spark plug. The stumble and misfire is back again and so I'm gonna see how this plays out.
With my tune the ecoboost will straight eat the 5.0s lunch. It's closer without a tune but the Eco will still pull a 5.0.
With my tune the ecoboost will straight eat the 5.0s lunch. It's closer without a tune but the Eco will still pull a 5.0.
05-27-2013, 07:11 PM
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I figured it wouldn't be long before Ford got back being number one in the P.O.S department. The mod motor was there biggest failure so far, but maybe not for long. Although I have had m *** drug by a couple of new 5.0s. THEY RUN, plain and simple.
05-27-2013, 07:19 PM
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Kind of an interesting problem. Ford service is the god damn worst. Not defending them for not fixing it.
The issue stems from the intercooling system being so efficient. You can run full boost for 10 seconds. In 100* heat and not see intake temps go over ambient. So cruise control set in very humid weather is causing condensation bad enough to foul up plugs and make the motor hesitate when you finally give it gas.
33k on mine. Haven't had this issue luckily. I don't think I will with my driving habits. Try explaining this to people on the f150 forums. Most of them just hope one of them there computer chips fix all. Lmao
The issue stems from the intercooling system being so efficient. You can run full boost for 10 seconds. In 100* heat and not see intake temps go over ambient. So cruise control set in very humid weather is causing condensation bad enough to foul up plugs and make the motor hesitate when you finally give it gas.
33k on mine. Haven't had this issue luckily. I don't think I will with my driving habits. Try explaining this to people on the f150 forums. Most of them just hope one of them there computer chips fix all. Lmao
05-27-2013, 09:11 PM
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Please explain to me how I am supposed to be driving my truck. I don't believe the tune I run will fix the issues and I rarely use cruise control. I would describe my driving as aggressive which should keep the condensation from pooling up and causing the truck lose power and fall on its face.
05-27-2013, 09:27 PM
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You have this exact problem not using the cruise control or maintaining throttle position in humid conditions? Pretty sure all of them with this specific issue had it under those conditions.
05-28-2013, 09:18 AM
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I agree it is a humidity problem but this happens to a lot more people than those using the cruise control or trying to squeeze high mpg's. Another interesting thing to consider is the guys who have gone to the company Full Race and purchased their upgraded inter cooler. I'm one of the guys who read the threads in the F150 forums thinking it would never happen to me then bam twice in one trip I had extreme misfires and limp mode kicked in. It ran good after getting it back from the dealer but it felt sluggish and my mpg dropped considerably. Now I'm back to a harsh idle at start and throwing codes for a lean condition.
05-28-2013, 10:55 AM
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I agree it is a humidity problem but this happens to a lot more people than those using the cruise control or trying to squeeze high mpg's. Another interesting thing to consider is the guys who have gone to the company Full Race and purchased their upgraded inter cooler. I'm one of the guys who read the threads in the F150 forums thinking it would never happen to me then bam twice in one trip I had extreme misfires and limp mode kicked in. It ran good after getting it back from the dealer but it felt sluggish and my mpg dropped considerably. Now I'm back to a harsh idle at start and throwing codes for a lean condition.
05-28-2013, 06:39 PM
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Lol. A road trip to work. I'm sure I have other fouled plugs and a clogged cat. It will go back to the dealer soon enough. The first time it was in they had me in a rental car for two weeks because the new CAC was on backorder.
05-29-2013, 06:17 PM
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there is a fix for it. i read it on a ford forum this guy had this problem and ford basically told him it's because he truck was not made for towing cause he said he towed a small trailer for work. ill try and find the thread it's on a ford forum. after like 6 months of fighting with ford he finally got it fixed. if im not mistaken they replace the cac on them. ill find the thread.
EDIT: here is the link it's like a 100 page thread but you can watch some of his videos and then towards the end of the thread he states that once they replaced the cac he has no 0 issues for a few thousand miles i believe. hope this helps with anyone looking for a fix.
oh and this guy lives here somewhere in the houston area.
http://www.f150forum.com/f38/ford-f-...issues-157704/
EDIT: here is the link it's like a 100 page thread but you can watch some of his videos and then towards the end of the thread he states that once they replaced the cac he has no 0 issues for a few thousand miles i believe. hope this helps with anyone looking for a fix.
oh and this guy lives here somewhere in the houston area.
http://www.f150forum.com/f38/ford-f-...issues-157704/