AFM or not?

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September 27th, 2014, 12:06 PM

jrank

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AFM or not?

I have a 2007 silverado classic with 5.3. Engine vin code is Z. I am trying to determine if the truck has active fuel management or not. Thanks for any replays.

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September 27th, 2014, 3:12 PM

country_09

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When drivin does the truck go into 4 cylinder mode?

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September 27th, 2014, 8:13 PM

jrank

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There is no indication that it does.

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September 27th, 2014, 11:10 PM

country_09

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I didn't notice it said classic. So I'm guess you have the slanted headlights like 03-06. They didn't start doin the AFM till 07 with the newer body style trucks. You shouldn't have it if you're in a 07 classic

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