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Home >> Jeep >> 2021 >> Grand Cherokee L Laredo, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (5.7L - DTCS P0456 To P0629) >> DTC Troubleshooting >> P0506-Idle Speed Performance Lower Than Expected >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
AIR INDUCTION SYSTEM RESTRICTIONS
PCV SYSTEM RESTRICTIONS
THROTTLE BODY ASSEMBLY
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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