2.7L EcoBoost Stumbling Under Moderate Load- New Truck
06-26-2018, 12:18 PM
#1
2.7L EcoBoost Stumbling Under Moderate Load- New Truck
Hello all! I am having a problem with my new truck and I want to give a timeline and ask if anyone else is having a similar problem. Here's the timeline:
6/14/18: purchased 2018 F-150 Supercrew 4wd (XL w/ STX package). Noticed a very slight stumble during the test drive but couldn't replicate
6/18/18: took the truck to work for the first time (170 mi round trip) noticed the stumble was more intense and isolated the conditions of the stumble (1800-2100 rpm when under moderate throttle input. Specifically, with the cruise set at 74mph, cruising on the highway, the truck feels like it is misfiring every time the truck has to climb a slight hill. I spend a lot of time driving on rural highways in hilly areas, so I felt this a lot). I took the truck in to the dealer that sold it to me. They felt it and agreed that it was a problem.
6/19/19: dealer said they believe it was the ring and pinion gears skipping teeth. Inspected the same and replaced diff. carrier bearings and pinion bearings.
6/20/19: picked up truck and felt the same behavior again
6/21/19: service manager called to say that he knew that the truck wasn't fixed, but waiting on feedback from Ford
6/26/18: service manager called to say Ford wants to check driveshaft balance and a few other things and compare to other trucks on lot. At this point they're telling me that this is normal behavior for these trucks.
Is anybody else experiencing a stumble under light acceleration or with cruise set on their 2018 F-150? I think the problem will get worse in the next few thousand miles and i'm already seeing a lemon-law claim in my future.
(sorry for the wall of text, but thanks for any responses)
6/14/18: purchased 2018 F-150 Supercrew 4wd (XL w/ STX package). Noticed a very slight stumble during the test drive but couldn't replicate
6/18/18: took the truck to work for the first time (170 mi round trip) noticed the stumble was more intense and isolated the conditions of the stumble (1800-2100 rpm when under moderate throttle input. Specifically, with the cruise set at 74mph, cruising on the highway, the truck feels like it is misfiring every time the truck has to climb a slight hill. I spend a lot of time driving on rural highways in hilly areas, so I felt this a lot). I took the truck in to the dealer that sold it to me. They felt it and agreed that it was a problem.
6/19/19: dealer said they believe it was the ring and pinion gears skipping teeth. Inspected the same and replaced diff. carrier bearings and pinion bearings.
6/20/19: picked up truck and felt the same behavior again
6/21/19: service manager called to say that he knew that the truck wasn't fixed, but waiting on feedback from Ford
6/26/18: service manager called to say Ford wants to check driveshaft balance and a few other things and compare to other trucks on lot. At this point they're telling me that this is normal behavior for these trucks.
Is anybody else experiencing a stumble under light acceleration or with cruise set on their 2018 F-150? I think the problem will get worse in the next few thousand miles and i'm already seeing a lemon-law claim in my future.
(sorry for the wall of text, but thanks for any responses)
Last edited by StuartTX; 06-26-2018 at 12:19 PM. Reason: spelling
06-29-2018, 12:22 PM
#2
Wow, this post fell on its face. Did I post this in the wrong subforum? There must be thousands of 2.7L 2018 models (and 2017 models) that have been sold. I would really appreciate hearing from other users with this engine, regarding whether their truck accelerates smoothly or stumbles up every hill. Any participation is greatly appreciated!
If I am in the wrong subforum, please give me a clue.
If I am in the wrong subforum, please give me a clue.
