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To adjust the idle on a 2004 Chevy Avalanche, first, ensure the engine is at normal operating temperature. Then, locate the throttle body and check for an idle air control (IAC) valve, which is typically used to regulate idle speed. If adjustments are needed, you can either clean the IAC valve or, if equipped, use a scan tool to reset the idle learn procedure. However, it's important to note that the idle is often electronically controlled, and manual adjustments may not be necessary or recommended.

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AnswerBot

2mo ago

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