bobross
New Member
Hello!
I have a 2010 expedition EL.
About 2 years ago I was going up a steep hill and noticed a loss in power, then a flashing engine light and stuttering, so I pulled over, turned off ignition for a minute or two and restarted. No engine light and power seemed to be OK. I took it to an auto parts store to use their computer and it showed a misfire on one of the cylinders.
I continued to drive it but noticed it often would hesitate when accelerating sometimes and going up even small hills would often lose power like it's being choked of fuel/air. So I took it to my local shop and they said they couldn't replicate the issue. (of course there's no hills nearby and the stuttering was intermittent sometimes).
Searching youtube and google I found that the mass air flow sensor might be the culprit. So I took it out and cleaned it with MAF cleaner and BAM! it drove perfect again. Perfect idle, plenty of power, handled hills no problem. Then maybe 6 months later it started stuttering on hills again, slightly rough idle, etc. After cleaning the MAF sensor a few times I bought another MAF sensor (refurbished from NAPA), and still notice the problem. Now it struggles up almost all hills unless I slowly accelerate and don't give it too much. Steep hills I have to put it in 2nd gear, then 3rd, otherwise it will lose nearly all power going up.
I took it to another local auto shop and they couldn't replicate the problem (not driving it up any hills of course). And my two local ford dealerships are a huge pain in the *** to deal with, making you wait 2-3 weeks for an appointment and when I tried they couldn't even check it that day so I gave up. They'll probably not replicate it either as they won't drive it up a hill.
So what the heck could this be? I replaced the plugs 4 or 5 years ago for reference. Being that the first time I cleaned the MAF sensor it ran perfect suddenly for months, does that sound like it could be my problem and I just got a faulty replacement sensor maybe?
Any ideas?
(128k miles, meticulously maintained until 50k, then minimal maintenance since). Not sure what plugs I have in I just went with whatever the autoplace recommended. I know it doesn't throw any codes and everything runs fine until you give it acceleration on hills.
I have a 2010 expedition EL.
About 2 years ago I was going up a steep hill and noticed a loss in power, then a flashing engine light and stuttering, so I pulled over, turned off ignition for a minute or two and restarted. No engine light and power seemed to be OK. I took it to an auto parts store to use their computer and it showed a misfire on one of the cylinders.
I continued to drive it but noticed it often would hesitate when accelerating sometimes and going up even small hills would often lose power like it's being choked of fuel/air. So I took it to my local shop and they said they couldn't replicate the issue. (of course there's no hills nearby and the stuttering was intermittent sometimes).
Searching youtube and google I found that the mass air flow sensor might be the culprit. So I took it out and cleaned it with MAF cleaner and BAM! it drove perfect again. Perfect idle, plenty of power, handled hills no problem. Then maybe 6 months later it started stuttering on hills again, slightly rough idle, etc. After cleaning the MAF sensor a few times I bought another MAF sensor (refurbished from NAPA), and still notice the problem. Now it struggles up almost all hills unless I slowly accelerate and don't give it too much. Steep hills I have to put it in 2nd gear, then 3rd, otherwise it will lose nearly all power going up.
I took it to another local auto shop and they couldn't replicate the problem (not driving it up any hills of course). And my two local ford dealerships are a huge pain in the *** to deal with, making you wait 2-3 weeks for an appointment and when I tried they couldn't even check it that day so I gave up. They'll probably not replicate it either as they won't drive it up a hill.
So what the heck could this be? I replaced the plugs 4 or 5 years ago for reference. Being that the first time I cleaned the MAF sensor it ran perfect suddenly for months, does that sound like it could be my problem and I just got a faulty replacement sensor maybe?
Any ideas?
(128k miles, meticulously maintained until 50k, then minimal maintenance since). Not sure what plugs I have in I just went with whatever the autoplace recommended. I know it doesn't throw any codes and everything runs fine until you give it acceleration on hills.
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