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Mine is doing something weird from time to time is like the accel pedal is disconnected from the engine. I need to press it further for the car to react/downshift then accelerate somehow as demanded but not as normal. After a while it works crispy and react great... The without any warning it starts feeling sluggish again... I'm I describing something similar to yours?

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That's nothing like what I'm experiencing. Throttle position sensor perhaps?
 
I know this is a long shot, but did you notice any change in shifting? I have a rough shift between 1 and 2, and 2 and 3. I have a theory that the throttle isn't dipping quick enough, resulting in a rough shift. Any thoughts?

Good morning, and welcome to the forum.

I don't think it's throttle issue, automatic transmissions have been shifting under load since their inception. That's always been the point of the planetary gear set combined with a fluid-filled torque converter. Is more than likely software related with shift timing, sometimes people get these issues resolved with this software updates in the dealer. The more speeds a transmission gets the harder it is to calibrate smoothly, but of course you'd think the 6F35 would've been figured out before this generation Escape was even released. Apparently not...
 
Turns out it was the Boost control solenoid (CJ5Z-9K378-B). Replaced it, and runs great now. Thanks!
first of all, thanks! It sounds like I'm having the exact same problem.
Secondly, has anyone tried changing out the fuel filter? Could this be an issue of not getting enough fuel through a filter?
The reason why I suggest it is because it's only happening when you're accelerating, or under a load. Which would suggest not getting enough fuel.
 
it is because it's only happening when you're accelerating, or under a load.
Welcome to the forum. Don't forget that's also when the turbo would be generating boost and the previously mentioned solenoid is operating. Given the multiple previous posts, I'd go with the solenoid- providing all your vehicle services are all up to date (ie. the fuel filter has been changed when required.)
 
first of all, thanks! It sounds like I'm having the exact same problem.
Secondly, has anyone tried changing out the fuel filter? Could this be an issue of not getting enough fuel through a filter?
The reason why I suggest it is because it's only happening when you're accelerating, or under a load. Which would suggest not getting enough fuel.
fuel filter issues are almost never mentioned on this forum, which would lead me to consider almost any other cause. however they are usually cheap to replace and can offer peace of mind and to cross one possible cause off the list.
 
update this did not solve the problem of erratic acceleration when the engine is cold. I replaced the turbo boost solenoid and it went much easier than I thought. You only need to remove the passenger front wheel to get access. I bought the part from OEM Auto Parts Catalog | GetOEMParts.com
And I followed this YouTube video for a Ford F-150 and found that the remove and replaces very similar.
 
Hi everyone, I'm new here and I'm having the exact same issue as the creator of this post described, I have a 2015 2.0 ecoboost escape and it has two solenoids, one on top under the engine cover (BL3E-9K378-BA) and one very close to the turbo (5900 117 0535) I'll attach some pictures of both, I think I need to change the one that's close to the turbo but this seems to be different to the other one, at least on the part number, has anyone changed that one? where did you buy it? is it possible to install the (BL3E-9K378-BA) to replace the one close to the turbo eve though is not the same part number? Thank you all for your opinion.
 

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Hi everyone, I'm new here and I'm having the exact same issue as the creator of this post described, I have a 2015 2.0 ecoboost escape and it has two solenoids, one on top under the engine cover (BL3E-9K378-BA) and one very close to the turbo (5900 117 0535) I'll attach some pictures of both, I think I need to change the one that's close to the turbo but this seems to be different to the other one, at least on the part number, has anyone changed that one? where did you buy it? is it possible to install the (BL3E-9K378-BA) to replace the one close to the turbo eve though is not the same part number? Thank you all for your opinion.
CJ5Z-9K378-A is the only one I changed and it fixed the surging.
 
Based on reviewing other people's info I brought my Ford escape to the dealer for a transmission system fluid service. It worked perfectly and there's no more acceleration problems when the engine is cold and when the engine is warm. I consider the problem resolved. My local repair shop couldn't do it because they didn't have the equipment for it so I took it to the dealer. They did the following perform automatic system flush service hook up and add cleaner flush and run through entire transmission evacuate contaminated fluid and debris from torque converter cooler transmission pump transmission lines and housing replaced with mercon v transmission fluid. Total cost $220.

update this did not solve the problem of erratic acceleration when the engine is cold. I replaced the turbo boost solenoid and it went much easier than I thought. You only need to remove the passenger front wheel to get access. I bought the part from OEM Auto Parts Catalog | GetOEMParts.com
And I followed this YouTube video for a Ford F-150 and found that the remove and replaces very similar.
 
Based on reviewing other people's info I brought my Ford escape to the dealer for a transmission system fluid service. It worked perfectly and there's no more acceleration problems when the engine is cold and when the engine is warm. I consider the problem resolved. My local repair shop couldn't do it because they didn't have the equipment for it so I took it to the dealer. They did the following perform automatic system flush service hook up and add cleaner flush and run through entire transmission evacuate contaminated fluid and debris from torque converter cooler transmission pump transmission lines and housing replaced with mercon v transmission fluid. Total cost $220.
How is your Escape driving now? Still working good? Shifting improved?
 
How is your Escape driving now? Still working good? Shifting improved?
It's been a week and I've taken it for a few 45 minute drives on local roads and an hour and a half drive on the interstate at 70 miles an hour. Car shifts perfectly in cold conditions and at highway speeds. It seems everything is back to normal after the transmission fluid service.
 
It's been a week and I've taken it for a few 45 minute drives on local roads and an hour and a half drive on the interstate at 70 miles an hour. Car shifts perfectly in cold conditions and at highway speeds. It seems everything is back to normal after the transmission fluid service.
Good to hear. I think I am going to have the same service and see if it improves mine. I have been drain/refilling with painstaking caution to get the level correct and it's still wonky-hot and cold.
 
Just wanted to pop in and say thanks for the help. Tried a transmission flush first (it was due anyway) and that did nothing. Immediately after swapping this solenoid all my issues were resolved. A pretty easy installation as well. Thanks!
 
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