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Home >> Jeep >> 2008 >> Commander Base, 4.7 N, AWD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0339 To P0507 >> P0506-Idle Speed Performance Lower Than Expected >> Possible Causes

Possible Causes

Possible Causes 
AIR INDUCTION SYSTEM RESTRICTIONS
PCV SYSTEM RESTRICTIONS
THROTTLE BODY
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.

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