Engine Symptom Troubleshooting - (4 Of 5)

• Symptom Troubleshooting Chart - Engine DRIVEABILITY
  • Notes
  • Starting Concerns
  • Hard Start / Long Crank / Erratic Start / Erratic Crank
  • Cranks Normally But Will Not Start
  • Unique Idle Concern
  • Fast Idle
  • Low Idle / Stalls During Deceleration
  • Engine Poor DRIVEABILITY
  • Backfires
  • Lack / Loss Of Power
  • Knocking / Pinging
  • Poor Fuel Economy
  • Emissions Compliance
  • Mil / TCIL Never On And Mil / TCIL Always On
  • Automatic Transmission Shift Concerns
  • Instrumentation
  • Exhaust System Concerns
  • Fuel Odor In Engine Compartment
  • Engine Noise
  • A/C Does Not Work
  • A/C Always On And A/C Compressor Runs Continuously
  • A/C Does Not Cut-Off Under Wide Open Throttle Conditions
  • Exterior Lighting Systems
  • Exhaust Sulfur Smell
  • All Supported On - Board System Readiness Tests Not Completed
  • Fuel Pump Always Runs
• Engine Inspection
• Engine Component Test
  • Engine Oil Leaks - Fluorescent Oil Additive Method
  • Leakage Points - Underhood
  • Leakage Points - Under Engine, With Vehicle on Hoist
  • Leakage Points - With Transmission and Flywheel Removed
  • Compression Test
  • Compression Test - Results
  • Compression Pressure Limit Chart
  • Compression Test - Interpreting Compression Readings
  • Cylinder Leakage Detection
  • Oil Leak and Valve Stem Seal Test
  • Oil Consumption Test
  • Excessive Engine Oil Consumption
  • Intake Manifold Vacuum Test
  • Intake Manifold Vacuum Test - Interpreting Vacuum Gauge Readings
  • Oil Pressure Test
  • Valve Train Analysis - Engine Off
  • Valve Train Analysis - Engine Off, Valve Cover Removed
  • Valve Train Analysis - Engine Off, Valve Tappets
  • Valve Train Analysis - Engine Off, Camshaft - Overhead Camshaft Engines
  • Valve Train Analysis - Engine Off, Valve Springs
  • Valve Train Analysis - Engine Off, Valve Spring Retainer and Valve Spring Retainer Keys
  • Valve Train Analysis - Engine Off, Valves and Cylinder Head
  • Valve Train Analysis - Engine Running
  • Valve Train Analysis - Engine Running, Rocker Arm
  • Camshaft Lobe Lift
  • Camshaft Lobe Lift - Valve Tappet, 2.3L, 3.0L and 4.0L Engines
  • Timing Chain - 2.3L, 3.0L and 4.0L Engines
  • Timing Chain Deflection - 2.3L, 3.0L and 4.0L Engines
• Charging System Component Tests
  • Battery - Load Test
  • Battery - Drain Tests
  • Battery - Electronic Drains Which Shut Off When the Battery Cable is Disconnected
  • Generator On-Vehicle Tests
  • Generator On-Vehicle Tests - Load Test
  • Generator On-Vehicle Tests - No-Load Test
  • Battery Condition Test
• Symptom Troubleshooting Chart - Engine Mechanical
• Symptom Troubleshooting Chart - Drive Belt
• Symptom Troubleshooting Chart - Engine Cooling
  • Engine Cooling
  • Cooling System Component Test
    • Fan Clutch Test
    • Fan Clutch Test - Minimum Speed Requirement
    • Fan Clutch Test - Maximum Speed Requirement
  • Cooling System Pinpoint Test 1: Loss Of Coolant
  • Cooling System Pinpoint Test 2: Engine Overheats
  • Cooling System Pinpoint Test 3: Engine Does Not Reach Normal Operating Temperature
  • Cooling System Pinpoint Test 4: Block Heater Does Not Operate Properly
• Exhaust System Symptom Chart
  • Notes
  • Pinpoint Test 1: Restricted Exhaust System Test