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Cylinder Deactivation

M4X

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Hey guys, so I've been driving around for a few days with my custom exhaust and my ears have grown attuned to the cylinder deactivation.

I find myself driving around in sport mode more because it disables cylinder Deactivation (and also because the coyote sounds so good when it's not short shifting).

I was wondering if anyone knew of any rumblings of a permanent solution to disabling it?

I know in the current climate with gas prices going where they are now some of us may be holding onto our MPGs with sacrosanct; but I bought this truck to hear that v8 purr, all 8 cylinders of it.
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H-Town

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Odd....I don't even notice it deactivating. Drove 600 miles to Dallas and back this weekend and never could tell.
 
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M4X

M4X

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It's pretty apparent on mine. I drove a Hemi around with a few years that had it so I have a keen ear to pick it up.

I could use a parabolic mic and capture it on video if anyone wants to hear what it sounds like with a muffler delete. I also gave a downpipe before the axle that probably amplifies it a little bit.
 

Bryan Simon

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I cannot feel or hear it drop to 4 cylinders, but I have a super 8 long ass truck.
I can feel it kick back to all 8 tho. Feels like it downshifts a half gear.
Can see it happen on the mileage meter.
That meter moves right on up to 25-30 mpg when I’m just tooling at around 40-50.
Any acceleration at all, and it starts hitting on all 8.
Less of an annoyance than I expected and a lot less of an annoyance than the auto start/stop thing that I have to shut off.
 
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M4X

M4X

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I cannot feel or hear it drop to 4 cylinders, but I have a super 8 long ass truck.
I can feel it kick back to all 8 tho. Feels like it downshifts a half gear.
Can see it happen on the mileage meter.
That meter moves right on up to 25-30 mpg when I’m just tooling at around 40-50.
Any acceleration at all, and it starts hitting on all 8.
Less of an annoyance than I expected and a lot less of an annoyance than the auto start/stop thing that I have to shut off.
Yeah that's what I expect most people's experience will be like. It enters deactivation pretty smoothly, but it makes a little bit of a noise/feel when it kicks out.

I really hope an aftermarket solution/mod comes out for it for pickier folks like myself.
 

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Hey guys, so I've been driving around for a few days with my custom exhaust and my ears have grown attuned to the cylinder deactivation.

I find myself driving around in sport mode more because it disables cylinder Deactivation (and also because the coyote sounds so good when it's not short shifting).

I was wondering if anyone knew of any rumblings of a permanent solution to disabling it?

I know in the current climate with gas prices going where they are now some of us may be holding onto our MPGs with sacrosanct; but I bought this truck to hear that v8 purr, all 8 cylinders of it.
That’s cool that it disables in sport mode, though. That’s the first I’ve heard of that. I was hoping it would.
 

Rkh51

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Yeah that's what I expect most people's experience will be like. It enters deactivation pretty smoothly, but it makes a little bit of a noise/feel when it kicks out.

I really hope an aftermarket solution/mod comes out for it for pickier folks like myself.
I hear if you unplug the battery Monitoring
System it will shut off the Deactivation system
 
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M4X

M4X

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I hear if you unplug the battery Monitoring
System it will shut off the Deactivation system
YouTube.
Nope. I actually have been in communication with the guy who originally started that rumor on youtube.

Disconnecting battery monitoring disables auto stop start, but it does NOT disable cylinder deactivation.

Ford F-150 Cylinder Deactivation Screenshot_20210417-172643
 
 




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