Question about 2003 Hummer H2
Mine was an ever so slighty leak. Get a small mirror and flaslight and look underneath the wather pump snout for discoloration from coolan leaking from the weap hole. that is where mine was and I replaced the pump. Check your belt condition and tensioners while you have it apart. The upper temsioner is cheal and has to be removed anyway to do this.
Posted on Jul 31, 2009
Could be the overflow canister or a seal in the front of the engine. Have the system pressure tested to be sure of the origin.
Posted on Feb 27, 2009
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Posted on Jan 02, 2017
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