Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2000CAB & CHASSIS C2500, 6.5 F, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1041 (ENGINE CONTROLS - 6.6L (LLY) (TROUBLESHOOTING & DIAGNOSIS))
2000 Chevrolet Cab & Chassis C2500, 6.5 F, Automatic
Section 1041 (Engine Controls - 6.6L (LLY) (Troubleshooting & Diagnosis))
2000 Chevrolet Cab & Chassis C2500, 6.5 F, AutomaticSECTION Section 1041 (Engine Controls - 6.6L (LLY) (Troubleshooting & Diagnosis))
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Troubleshooting
- Symptoms - Engine Controls
- Intermittent Conditions
- Hard Start
- Surges/Chuggles
- Lack of Power, Sluggishness, or Sponginess
- Fuel Knock/Combustion Noise
- Hesitation, Sag, Stumble
- Cuts Out, Misses
- Poor Fuel Economy
- Rough, Unstable, or Incorrect Idle and Stalling
- Excessive Smoke (White)
- Excessive Smoke (Black)
- Excessive Smoke (Gray or Blue)
- Malfunction Indicator Lamp (MIL) Inoperative
- Malfunction Indicator Lamp (MIL) Always On
- Engine Cranks but Does Not Run
- Ignition Relay Diagnosis
- Fuel Pressure Regulator Diagnosis
- Fuel System Diagnosis
- Fuel Return System Diagnosis
- Fuel Leaks
- Fuel System Diagnosis - High Pressure Side
- Fuel Injector Balance Test with Tech 2 (with Automatic Transmission)
- Fuel Injector Balance Test with Tech 2 (with Manual Transmission)
- Fuel Tank Leak Test
- Contaminants-in-Fuel Diagnosis
- Inspection/Maintenance (I/M) System Check
- Inspection/Maintenance (I/M) System DTC Table
- Inspection/Maintenance (I/M) Complete System Set Procedure
- Inspection/Maintenance (I/M) Exhaust Gas Recirculation (EGR) System Set Procedure
- Inspection/Maintenance (I/M) Misfire Monitoring System Set Procedure
- Fuel Heater Inoperative
- Fuel Heater Always On
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.