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4l60e Programming Question

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Starbird New Member

Starbird

Posted
Posted

I have a '99 Blazer 2WD, and a '02 Blazer xTreme. My question is this; The '99 (83K miles) shifts very normally. The '02 (73K miles) shifts like it is in tow-haul mode, even though there is no option to switch as the full size trucks have. I bought the vehicle used with 60k on it, and it came with a factory tow package. The shifts are a bit firmer, and at a slightly higher RPM. There are no other issues with the tranny. The dealer flashed the ECM, and stated that the download from GM was based on the VIN number of the vehicle.

 

Is there a problem I am facing, or is the programming "sportier" for the xTreme to go along with the suspension mods?

 

thanks,

 

Jim

alwcurlz Enthusiast

alwcurlz

Posted
Posted
I have a '99 Blazer 2WD, and a '02 Blazer xTreme. My question is this; The '99 (83K miles) shifts very normally. The '02 (73K miles) shifts like it is in tow-haul mode, even though there is no option to switch as the full size trucks have. I bought the vehicle used with 60k on it, and it came with a factory tow package. The shifts are a bit firmer, and at a slightly higher RPM. There are no other issues with the tranny. The dealer flashed the ECM, and stated that the download from GM was based on the VIN number of the vehicle.

 

Is there a problem I am facing, or is the programming "sportier" for the xTreme to go along with the suspension mods?

 

thanks,

 

Jim

 

I would strongly suggest going and posting this question on the S10 forum website: http://www.s10forum.com/ Those guys really tweak stuff and know them up, down, inside and out! Good luck!

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