View Poll Results: 2008 hummer thud noice low speed accelerating
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2008 hummer h2 low speed accelerate THUD
Senior Member
Joined: Feb 2024
Posts: 528
From: Oregon
Pretty much all GM automatic transmissions can benefit from a little more line pressure. It's like they designed it with the minimum amount needed to give the smoothest shift possible. Not suitable for trailer towing or transmission longitivity. And definitely not with an H2, as heavy as it is.
Senior Member
Joined: Feb 2010
Posts: 1,066
From: Egg Harbor Township NJ
Interesting.....It you happen to be on the site at some point.... maybe you could take a Look? Thanks for the infor.
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