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1061 Views 21 Replies 9 Participants Last post by  RoGuE
I am a Colorado fan( even a member of ) and always have been. But there is one thing that I have never understood. Why did GM not put the 4.2 I6 in the colorado when it came out in 2004, as it is little more then the truck version of the Trailblazer SUV? The 4.2 would have greatly improved the capabilty and both vehichles use basicly the same transmission( or exactly the same, I'm not sure ) So why did GM cut it down a cylinder and go with what is now the 3.7 5 cylinder? It doesn't make much sense to me. Can anybody else help me out?
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The Atlas 4.2 I6 does not fit in the current Colorado/Canyon.
Period. done.
That's a good engine. Sucks my wallet dry, but it's a good engine.

yes it is a good power plant and yes it is sad to see it go.
It won many awards and is quite reliable from what I understand.
My boss has almost a hundred k on his and he tows a twenty plus foot trailer w/ his envoy quite often. Not one problem w/ the engine at all.
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