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Sierra Dan

Interesting Article Segment I Found Regarding Disabling of AFM

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3 minutes ago, Sierra Dan said:

My '14 5.3 will often lock into V4 mode in what I call the sweet spot of around 40-45mph on flat, smooth roads which we have an abundance in the surrounding KC area.

More so than on the highway. Any slight throttle input will kick me back into V8.

Also, any slight headwind immediately kicks V4 back to V8

 

I love it when I can decipher the meaning of someone's post...thank you Dan :thumbs:

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Just now, SS502 said:

I love it when I can decipher the meaning of someone's post...thank you Dan :thumbs:

Amen to that !   :lurk:

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I can imagine the look I would get back in the day at a family picnic. My family’s rides would be Shelby’s, Chevelle, GTO, Camaros, Buick Electra, Rancheros etc. Hey man check this out, my new Chevy can drop from 8 to 4 cylinders to save gas, maybe. They would say, I bet that’s sounds like sh$t. Hey man you want a Vega, buy a Vega.


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16 minutes ago, Sierra Dan said:

My '14 5.3 will often lock into V4 mode in what I call the sweet spot of around 40-45mph on flat, smooth roads which we have an abundance in the surrounding KC area.

More so than on the highway. Any slight throttle input will kick me back into V8.

Also, any slight headwind immediately kicks V4 back to V8

 

Here's a post with some real information. Thanks Dan! 

 

At 55 mph Pepper will stay in V4 at temperatures over 55-60 F up a 2-3% grade and into a head wind under about 6 mph and come out of it, if those conditions stay long enough, only for the minute the ECM says 'time out'. In the winter when it's 20 F and windy it hardly ever goes into V4 even down hill if the hill isn't too steep or long. Living in the northern half of Illinois direction sets my terrain for any distance up to 250 miles in any single direction. It is a load sensitive device and even tire pressures will affect it's operation if near the load limits of it's design. I love this feature. 

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14 minutes ago, KARNUT said:

I can imagine the look I would get back in the day at a family picnic. My family’s rides would be Shelby’s, Chevelle, GTO, Camaros, Buick Electra, Rancheros etc. Hey man check this out, my new Chevy can drop from 8 to 4 cylinders to save gas, maybe. They would say, I bet that’s sounds like sh$t. Hey man you want a Vega, buy a Vega.


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Don't forget the Monza! :lol:

 

 

See the source image
 

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9 minutes ago, Grumpy Bear said:

Here's a post with some real information. Thanks Dan! 

 

At 55 mph Pepper will stay in V4 at temperatures over 55-60 F up a 2-3% grade and into a head wind under about 6 mph and come out of it, if those conditions stay long enough, only for the minute the ECM says 'time out'. In the winter when it's 20 F and windy it hardly ever goes into V4 even down hill if the hill isn't too steep or long. Living in the northern half of Illinois direction sets my terrain for any distance up to 250 miles in any single direction. It is a load sensitive device and even tire pressures will affect it's operation if near the load limits of it's design. I love this feature. 

Thank you as well Marty! :thumbs:

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Don't forget the Monza! :lol:
 
 
th?id=OIP.PqQDAr9yzx8AyJJAG4RVYgHaEh&pid=Api
 

My wife bought a Oldsmobile version of that. First car she bought without me. Lucky she got the V6. Door handles broke inside and out. Shifter broke. Brakes and front tires alignment every 10K miles. A real piece. I did put duals on it though, I put duals on every thing back then.


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13 minutes ago, Sierra Dan said:

Don't forget the Monza! :lol:

 

 

See the source image
 

Oldsmobile Starfire...I think the Starfire GT had a 6 cylinder

Starfire.jpg

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Monza was GM's version of the Pinto LOL

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Don't forget the sporty Buick Skyhawk either!

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