Engine Control System - 3.8L (L36 And L67) - Troubleshooting & Diagnosis
- Diagnostic Information & Procedures
- Symptoms - Engine Controls
- Intermittent Conditions
- Hard Start
- Surges/Chuggles
- Lack of Power, Sluggishness, or Sponginess
- Detonation/Spark Knock
- Hesitation, Sag, Stumble
- Cuts Out, Misses
- Poor Fuel Economy
- Poor Fuel Fill Quality
- Rough, Unstable, or Incorrect Idle and Stalling
- Dieseling, Run-On
- Backfire
- Malfunction Indicator Lamp (MIL) Inoperative
- Malfunction Indicator Lamp (MIL) Always On
- Engine Cranks but Does Not Run
- Ignition Relay Diagnosis
- Fuel Pump Electrical Circuit Diagnosis
- Fuel System Diagnosis
- Fuel Injector Coil Test
- Fuel Injector Balance Test with Special Tool
- Fuel Injector Balance Test with Tech 2
- Fuel Injector Circuit Diagnosis
- Fuel Tank Leak Test
- Alcohol/Contaminants-in-Fuel Diagnosis (Without Special Tool)
- Alcohol/Contaminants-in-Fuel Diagnosis (With Special Tool)
- Manifold Absolute Pressure (MAP) Sensor Diagnosis
- Boost Control System Diagnosis
- Idle Air Control (IAC) System Diagnosis
- Electronic Ignition (EI) System Diagnosis
- Crankshaft Position Sensor (CKP) System Diagnosis
- Inspection/Maintenance (I/M) System Check
- Inspection/Maintenance (I/M) Complete System Set Procedure
- Inspection/Maintenance (I/M) System DTC Table
- Inspection/Maintenance (I/M) Catalyst System Set Procedure
- Inspection/Maintenance (I/M) Exhaust Gas Recirculation (EGR) System Set Procedure
- Inspection/Maintenance (I/M) Evaporative Emission (EVAP) System Set Procedure
- Inspection/Maintenance (I/M) Heated Oxygen Sensor/Oxygen Sensor (HO2S/O2S) System Set Procedure
- Inspection/Maintenance (I/M) Heated Oxygen Sensor (HO2S) Heater System Set Procedure
- Service Bay Test