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How do you install a block heater in a 2009 Chevy Trail Blazer?
Wiki User
∙ 14y ago
To normally install a block heater you must remove an expanstion/ freeze plug in tighten in the block heater. The 6 cylinder 4.2L engine unfortunately does not appear to have any such plugs. The V8 engine should have a screw in style block heater installed in the left front of the engine block just below the cylinder head.
Wiki User
∙ 14y ago
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