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.

H3 Redyced Engine Power

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Old Sep 29, 2021 | 05:21 PM
  #1  
Blinker1's Avatar
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Junior Member
Joined: Sep 2021
Posts: 2
From: Sumiton, Ala.
Default H3 Redyced Engine Power

Have the dreaded reduced engine power. Have installed new throttle body and cleaned mass air flow with no results. Any suggestions please?
 
Old Sep 29, 2021 | 05:56 PM
  #2  
hummerz's Avatar
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Joined: Jul 2012
Posts: 8,999
From: C-Town
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Can't help without codes!




 
Old Sep 30, 2021 | 09:17 AM
  #3  
Doc Olds's Avatar
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Joined: Jul 2007
Posts: 13,090
From: Boat Town USA MI
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Welcome to HF.

Post up the codes, that can come from many different problems, most of which ain't rocket science. Add to that year and MILES, any recent work done before the problem started.
 

Last edited by Doc Olds; Sep 30, 2021 at 09:22 AM.
Old Sep 30, 2021 | 09:21 AM
  #4  
Doc Olds's Avatar
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Joined: Jul 2007
Posts: 13,090
From: Boat Town USA MI
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Please do us all a favor, READ before Posting. AVOID the H3 FAQ Section just like it says in the 3rd from the top Sticky Thread "Do Not Post In This Section." Yours ain't even close to an FAQ.
 
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