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To install an ERG valve on a 2003 Pontiac Aztek, first, disconnect the negative battery cable to prevent electrical shorts. Remove the air intake duct for better access, then unbolt the old EGR valve from its mounting. Clean the mounting surface, install the new valve with a new gasket, and reattach the air intake duct. Finally, reconnect the battery and check for proper operation.

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2mo ago

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