I know it's a stupid question, but how do I find out? - I purchased my used 2010, 5.3L Silverado Extended Cab recently and of course the dealer had a ...

vicman · by **vicman** [OP] » Oct 27 2011, 5:02am

I purchased my used 2010, 5.3L Silverado Extended Cab recently and of course the dealer had a lot of misinformation listed about the truck. It FEELS like I have a 5 speed transmission, but the dealer listed it as a 4 speed. From my internet browsing it seems it should be a 6 speed?

I'm also totally unsure if the truck has Active Fuel Management?

I'm not sure where I can find this information as my owner's manual is so vague and broad to cover so many sub models and options.

Thanks for the help.

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DRK4X4 · by **DRK4X4** » Oct 27 2011, 4:46pm

Does it have the "M" indicator in the dash below the speedometer where you can shift it manually from the button on the shifter? If so, it should be the 6 speed. If it only has Park - Reverse - Drive - 3 - 2 - 1, it'll be the 4 speed.

DRK4X4 · by **DRK4X4** » Oct 27 2011, 4:49pm

Oh, and on the AFM, it should be in your DIC (Driver Info Center). There's a mode that tells you if it's running 4 or 8 cylinders.

Gorecki · by **Gorecki** » Oct 27 2011, 5:17pm

You could also look at the codes on the sticker in the glove box and look them up, Here.

06MonteSS · by **06MonteSS** » Oct 27 2011, 5:38pm

the engine cover should have Active Fuel Management right on it.... being a 2010 5.3L, you have active fuel management - aka DOD (displacement on demand)...

Z15 · by **Z15** » Oct 27 2011, 6:06pm

all 5.3L engines 2007 up have AFM.

vicman · by **vicman** [OP] » Oct 27 2011, 6:26pm

Thanks for the responses.

I guess I have AFM.

I have 6 speed transmission.

As to the comment on the DIC, I do not have the enhanced DIC yet, but I ordered the upgrade panel last night after reading about it on this site. The new silverado I test drove had it and it was wonderful.

I'm hoping to improve my gas milege by watching the DIC AFM display and impoving my driving habbits.

MadHatter · by **MadHatter** » Oct 27 2011, 7:16pm

theres a went site where u can put your Vin in and it will give you the build sheet.. i dont know the site.. ill look for it and post

Gorecki · by **Gorecki** » Oct 27 2011, 7:35pm

MadHatter wrote:theres a went site where u can put your Vin in and it will give you the build sheet.. i dont know the site.. ill look for it and post

compnine use to do that but they went bye-bye.

MadHatter · by **MadHatter** » Oct 28 2011, 12:22pm

Gorecki wrote:
MadHatter wrote:theres a went site where u can put your Vin in and it will give you the build sheet.. i dont know the site.. ill look for it and post

compnine use to do that but they went bye-bye.

yep that was it... im sure theres another one out there somewhere.

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I know it's a stupid question, but how do I find out? - I purchased my used 2010, 5.3L Silverado Extended Cab recently and of course the dealer had a ...

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