What is your question?
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What is your question?
Low rpm at idle
How long has your 2006 Volvo S40 had this problem?
A few days
1 Reply
Hi, this is Bo, an auto expert on RepairPal's Car Genius team! Low idle RPM on this generation S40 could be pointing toward a few different things worth exploring. A dirty or failing throttle body, a vacuum leak, or a faulty idle air control valve could all cause the engine to hunt for the right idle speed. A dirty mass airflow sensor is also worth considering since it affects how the engine manages air and fuel at low loads. If the low idle is accompanied by any roughness, stalling, or a check engine light those are additional clues that would really help narrow things down. A scan for codes would be a great starting point before replacing anything! If you need any further advice or want help finding a trusted RepairPal shop in your area, please feel free to call us at 877-913-1554