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02-10-2011, 03:08 PM
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Hummer Professional
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Join Date: Jan 2008
Location: Meadville, PA
Posts: 339
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Re: Alternator, tension pulley, belt replacement
Please clarify "right materials". Any special tools?
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02-10-2011, 03:22 PM
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Hummer Expert
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Join Date: Mar 2009
Location: Burnsville, MN
Posts: 657
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Re: Alternator, tension pulley, belt replacement
a socket wrench
a socket that will fit the bolt
should be about all you will need
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02-15-2011, 07:51 PM
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Hummer Expert
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Join Date: Jun 2008
Location: Virginia Beach, VA
Posts: 784
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Re: Alternator, tension pulley, belt replacement
Very very easy!!! Replaced mine with a 200amp and it too about 45 minutes at the most. Good luck!
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03-21-2011, 08:22 PM
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Hummer Professional
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Join Date: Jan 2008
Location: Meadville, PA
Posts: 339
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Re: Alternator, tension pulley, belt replacement
Finally getting around to this. Is there a difference between a tension pulley and an idler pulley? Dealer said tension pulley but I can't find them, just idler pulleys. Is GM parts direct the best place to go or should I just check local auto zone?
thanks
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03-21-2011, 08:55 PM
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Hummer Veteran
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Join Date: Jun 2009
Location: Germany
Posts: 215
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Re: Alternator, tension pulley, belt replacement
When looking at the front of the motor its on the upper most left pully. Put a socket on the long nut and turn it to loosen the tension.
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03-23-2011, 01:07 AM
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Hummer Veteran
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Join Date: Nov 2008
Posts: 143
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Re: Alternator, tension pulley, belt replacement
change the AC pulley while you at it it's smaller one below the one you working on.
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