Afm Pre 2007?

[mix9]

Am I correct in saying that no Vortec engine had AFM pre 2007??

[welscher08]

Am I correct in saying that no Vortec engine had AFM pre 2007??

 

Yep...don't quote me but pretty sure...you are 100% true there. It wasn't available on the GMT-800 platform and started with the GMT-900.

[[email protected]]

I never heard of it before 07, myself. But, it might have started in 06.

[pm26]

Am I correct in saying that no Vortec engine had AFM pre 2007??

 

That would be correct for trucks only. GM started using AFM earlier on some cars. For example, a 2006 model Impala SS with a 5.3 V8 had the AFM system.

[MS3DALE]

Nope,The 5.3 (RPO code LH6) in the Trailblazer/Envoy/Ranier's had AFM starting in '05,It was called displacement on demand or "DOD"

Earlier year 5.3's (RPO code LM4) in '03-'04 did not have DOD,This is also the same 5.3 that was in the SSR's for '03-'04.

[[email protected]]

Alright, I rephrase to "might have started in 05".

[kawtoy_77]

Didn't the Northstar engines have that DOD or something similar?

[mix9]

Thanks for the clarification. So any Sierra 1500 prior to 07 will not have AFM?

 

Ya'll respond so quick, working and posting are we??

[MS3DALE]

Didn't the Northstar engines have that DOD or something similar?

 

Nope.

[MS3DALE]

So any Sierra 1500 prior to 07 will not have AFM?

 

Correct,No pickup truck prior to the '07 GMT900's had AFM/DOD,Just some of the mid-size SUV's.

[txab]

Should have called it DUD.

[MS3DALE]

Just to clarify, Silverados & Sierras did come with AFM in 2006. They were sold as GMT-900 2007 model year trucks.

 

Yeah,I said that already

[L76PWRD]

Thats something I really liked about my 2006 Silverado LT. The 5.3l engine had no AFM, that was great. Fulltime V8 is great.