The Chevy Duramax diesel engine was available in 2016.
Problems reported by owners:
- Low or no boost
- Vibrations
- Loss of power
- Bad fuel mpg
- Loud noises from turbo
- Inducer issues
- Emission issues
- Failed turbo
- Timing belt bad
- Clogged injectors
- Rough idle
- Delayed acceleration/dead pedal
Troubleshoot
- Engine won’t start or hard to start:
- Check the fuel supply and ensure that the fuel filter is not clogged or dirty.
- Inspect the glow plugs for proper operation.
- Verify the integrity of the battery and charging system.
- Check for any stored Diagnostic Trouble Codes (DTCs) using a code reader.
- Loss of power, poor acceleration, or hesitation:
- Replace or clean the air filter if it’s dirty or clogged.
- Check the fuel supply and ensure that the fuel filter is not clogged or dirty.
- Inspect the turbocharger system for leaks or damaged components.
- Examine the exhaust gas recirculation (EGR) valve for proper operation and clean it if necessary.
- Scan for any stored DTCs and address them accordingly.
- Excessive smoke from the exhaust:
- Black smoke: Check the air filter, fuel injectors, and turbocharger system for proper operation.
- Blue smoke: Inspect for worn piston rings, valve seals, or turbocharger oil seals.
- White smoke: Check for coolant leaks, a cracked head gasket, or a damaged EGR cooler.
- Overheating:
- Verify the coolant level and ensure there are no leaks.
- Inspect the radiator, hoses, and water pump for proper operation.
- Check the thermostat and ensure it’s functioning correctly.
- Examine the cooling fan and fan clutch for proper operation.
- Excessive engine noise or knocking:
- Inspect the engine oil level and condition.
- Check the timing chain, tensioner, and gears for wear or damage.
- Inspect the fuel injectors and fuel system for proper operation.
- Examine the engine’s internal components, such as the pistons, rods, and bearings, for damage.
- Poor fuel economy:
- Replace or clean the air filter if it’s dirty or clogged.
- Inspect the fuel injectors for proper operation and clean them if necessary.
- Check the tire pressure and ensure it’s within the recommended range.
- Examine the turbocharger system for leaks or damaged components.
- Check engine light is on:
- Use a code reader to retrieve stored DTCs and address the underlying issues.
- Perform a visual inspection of the engine and related components for any visible issues.
Specs:
Used in Chevy Colorado, Express, GMC Canyon, Savana
2.8L
4cyl turbo diesel
Grey Cast Iron block
aluminum head
bore 94mm, stroke 100mm
16.5:1 compression
181 HP
368 lb-ft
6 qt of 5w-30 oil
2016 Colorado diesel 2WD had EPA estimated 22 mpg city.
