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.

Changed Spark Plugs and Passlock Kicked In

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Old Nov 24, 2021 | 12:55 PM
  #11  
Doc Olds's Avatar
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Joined: Jul 2007
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From: Boat Town USA MI
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First MOD to do to every H3/H3T is to replace the OEM Battery Terminals with a quality aftermarket set. The OEMs work fine until you change a battery or disconnect it a time or two and since all these trucks are past the GM supplied original, no pint in feeding known electrical Gremlins.
 
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