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Hi I have a 2005 4x4 Gmc Canyon with 199,000km and the last couple of days I've been getting this thud thud thud sound from the drivers side floor only when its in 4x4 cant hear anything when the window is down ..... Is my front diff ready to explode or maybe a bearing?
You guys have to be stopped and in neutral before you can put it in 4 low.
Also, try not to ever 4x4 on the fly it wears some part down rather quickly..
Last, these trucks, most of them, have automatic locking differentials, which means you probably don't even need to use 4x4.. hi or low... And 4x4 low is low gear... meaning for towing something under 30 km/h...
These trucks also have transfer case issues and should of had been recalled.. Every single one of them has a clip inside that wears a hole in the csae which results in leaking fluid out and burning out the gears... Don't Think I will buy gm every again..