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Where is the coolant temperature sending unit on a 2004 trailblazer?
Wiki User
∙ 14y ago
Just above the coolant thermostat on the passenger side of the engine.
Wiki User
∙ 14y ago
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Inside or outside? I think you may have more issues than you may think. Visit our enthusiasts forum and get to the bottom of the problem with help from other Trailblazer owners! www.trailvoy.com
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