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Hummer H3 For the Hummer driver who wants the rugged look and off road capabilities of the Hummer, but in a smaller size and with a more fuel economy friendly engine.

Engine swap from 3.7L to 3.5L

   
Old May 1, 2025 | 03:48 PM
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xXsteeltatsXx's Avatar
Junior Member
Joined: Feb 2023
Posts: 3
From: Topeka
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Originally Posted by atvspeed4
yes we just plugged the 2006 pcm in and it worked fine. No programming of anything been running it like that for almost 8 years. No check engine light issues and passed inspection fine
wow ok I don’t have the 06 PCM but I guess I’ll just order one and plug it in and see how it goes. Thank you.👍
 
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