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Pascale007

MPG Tanked!!! Any help Greatly Appreciated...

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Hey all, Just joined. About 2 months ago I purchased a CPO 2018 Edge Sport. Having several problems but I'll start today with this one because they're in separate categories, and I don't want to confuse things. It has just over 30k miles on it now and I decided to change the air filter at approximately 27k. It had been averaging 18.9 MPG at that time. I installed a K & N replacement filter and my MPG went as low as 8.9 MPG!!! (I threw away the original when I installed the K & N.) So, I replaced that with a Motorcraft filter and it creeper back up to as high as 15.2 MPG, but still goes several MPG below that. Had it in the Dealership and they can't find anything wrong...of course. Everything looks fine with the Installation. Can't seem to find anyone else Having this problem. Any advice would be Greatly Appreciated. Thanks in advance if anyone has any insight on this.

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may need to clean all the sensors along the intake.  oil can affect performance.  usually only a problem when the filter is recharged.  what filter model # did you install?

 

use MAF sensor cleaner to clean the sensors.

 

can try a KAM reset also if it has not been many miles since you installed the new MC filter.

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Thanks for the info. It had 28,700-ish when I changed it, so around 2k miles since. K&N part # 33-5000. Do you know how to perform a KAM reset on this vehicle? Thanks again. 👍

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Also, From what I'm reading online, that may open me up to voiding my warranty. Ford could try to say I put a tune on and then took it off and tried to hide it. But people say it's good to reset that, after replacing certain parts so that the vehicle can "re-learn" the new parts. And that seems to make sense. I'm confused, which is it? Don't want to jeopardize the warranty. 😕

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Depending on cost, I would have Ford replace the filter (give you the old one), and see how the vehicle performs.

Then, determine from there.  

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2 hours ago, Pascale007 said:

Thanks for the info. It had 28,700-ish when I changed it, so around 2k miles since. K&N part # 33-5000. Do you know how to perform a KAM reset on this vehicle? Thanks again. 👍

Disconnect the battery for 30 minutes and reconnect

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some gaffes in his videos regarding specific numbers for non F150 vehicles, but overall great info

 

 

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Thank you, I replaced the air charge temperature sensor, rather than cleaning it. Followed the rest processes listed above. No change. Then removed and cleaned. The MAP sensor and reset again...still no change. Actually seems worse, it had been climbing to about 14+, now it's below 10. This has me extremely stressed. I have other issues with this vehicle unrelated to this (3-4 issues!!!) That have all cropped up since I got it not even 2 months ago. I really like the vehicle, had a 2011 Edge Sport before this 2018. Have wanted this for quite a while, and it's been giving me nothing but grief unfortunately.  😑

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i would try reading codes again. how is the engine oil doing - level and condition? do you see any puffs of smoke out the exhaust ... idling/driving? any propane type smells in the cabin?

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You sure you aren't just getting more heavy footed? It's been known to happen.

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