Back to search

2017 CHEVROLET COLORADO

2.8L I4 Duramax Diesel•4WD•AUTOMATIC•diesel•turbo
Be the first sponsor for this vehicle

For $99, we generate the full set of step-by-step repair procedures for this exact vehicle. Free for everyone, forever, with your name on every one.

Sponsor — $99
Dead battery / stuck in Park? Emergency neutral procedure for this Colorado →
5-Year Cost of Ownership
$17,431 maintenance + known platform issues
~$3,486/yr · 290¢/mile equivalent · $6,618 maintenance + $7,893 expected platform issues
Compare this engine
vs
2.7L I4 Turbo
vs
2.5L I4
vs
3.6L V6
Common Problems & Known Issues

The 2017 Colorado is a solid mid-size truck, but the 2.8L Duramax diesel has catastrophic piston/crankshaft failures, and all powertrains share transmission cooler line leak issues. The 3.6L V6 and 2.5L I4 are generally reliable if maintained.

2.8L Duramax Catastrophic Engine Failure (Piston/Crankshaft/Bearing Destruction)

Occasional · high severity
Typical onset: 60,000-120,000 mi
Symptoms: Sudden loud knocking or rattling from engine bay, Metal shavings in oil, Loss of power followed by complete engine seizure, Check engine light with misfire or low oil pressure codes
Fix: Complete engine replacement or full rebuild required. Failures trace to piston skirt cracking, spun bearings, or crankshaft damage—often catastrophic with no warning. GM extended warranty covers some cases to 120k miles under special coverage, but many owners are out of pocket. Rebuild involves pistons, rings, bearings, crankshaft inspection/replacement, and machine work. 30-50 labor hours for removal, rebuild, reinstall.
Estimated cost: $8,000-15,000

Transmission Oil Cooler Line Leak

Common · medium severity
Typical onset: 40,000-80,000 mi
Symptoms: Transmission fluid puddle under vehicle (red or brown fluid), Low transmission fluid warning, Burnt transmission smell, Harsh or delayed shifts if fluid level drops significantly
Fix: The rubber lines connecting the transmission to the radiator-mounted cooler deteriorate and crack at the crimp points or develop pinhole leaks. Replace both cooler lines (some techs replace the entire cooler assembly for long-term reliability). Quick catch prevents transmission damage; if driven low on fluid, internal clutch damage can occur requiring full rebuild. 2-3 labor hours for lines only.
Estimated cost: $400-800

8-Speed Automatic Transmission Shudder and Torque Converter Issues

Common · medium severity
Typical onset: 30,000-70,000 mi
Symptoms: Vibration or shudder during light acceleration (feels like driving over rumble strips), Occurs mostly between 25-50 mph under light throttle, Harsh or delayed 1-2 or 2-3 shifts, Transmission slipping feeling
Fix: GM issued TSBs calling for fluid flushes with updated Mobil 1 LV ATF HP fluid and software updates, which help in early cases. Persistent shudder requires torque converter replacement. Valve body updates or replacement sometimes needed. Software reflash: 0.5 hours. Fluid service: 1.5 hours. Torque converter replacement: 8-12 hours.
Estimated cost: $150-3,500

Diesel Fuel Filter Clogging and Water Contamination (2.8L Duramax)

Common · medium severity
Symptoms: Hard starting, especially in cold weather, Loss of power under load, Engine stalling or dying at idle, Check engine light with fuel pressure/rail codes
Fix: The diesel fuel filter housing can develop internal corrosion or allow water intrusion, contaminating the fuel system. GM recommends filter changes every 22,500 miles but real-world conditions (fuel quality, moisture) often demand 10-15k intervals. If water gets past the filter, injector and high-pressure fuel pump damage follows. Filter/water separator replacement: 0.8-1.2 hours. If injectors or pump are damaged, add $3k-6k.
Estimated cost: $150-6,500

Rear Differential Pinion Seal Leak

Occasional · low severity
Typical onset: 50,000-90,000 mi
Symptoms: Gear oil drip or puddle under rear of truck, Low differential fluid warning (if equipped), Whining noise from rear axle if fluid level drops significantly
Fix: The pinion seal at the front of the rear differential dries out and leaks gear oil. Catch it early and it's a simple seal replacement. If ignored and run low on fluid, pinion bearings or ring/pinion gears can be damaged requiring full differential rebuild. Seal replacement: 2-3 hours.
Estimated cost: $250-500

Fuel Pump Failure (Recall NHTSA 21V-088)

Occasional · high severity
Symptoms: Engine stalling while driving, No-start condition, Engine cranks but won't fire, Loss of power and engine dying without warning
Fix: GM recalled certain 2017 Colorados for fuel pump module failure—pump can stop working suddenly, creating a dangerous stall situation in traffic. Recall covers replacement of the fuel pump module. If your VIN is in the recall, it's free at the dealer. Out-of-recall failures happen occasionally and require in-tank pump replacement. 2-3 labor hours.
Estimated cost: $0 (recall) or $600-1,200
Owner tips
  • Diesel buyers: inspect maintenance records carefully—frequent fuel filter changes (every 10-15k) and quality fuel are critical to avoid catastrophic failures.
  • Check transmission fluid condition at every oil change; catching cooler line leaks early prevents expensive internal damage.
  • V6 models are the reliability sweet spot—avoid early 2.8L Duramax engines unless you can verify piston update or confirmed good compression test.
  • Run a VIN check for open recalls, especially the fuel pump recall—it's a serious safety issue.
  • Budget for transmission fluid service with updated HP fluid around 40-50k miles to mitigate shudder issues.
Buy the 3.6L V6 without hesitation; avoid early 2.8L Duramax unless you're prepared for potential engine replacement costs—otherwise a capable, comfortable mid-size truck.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
523 jobs across 17 categories
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years.
Stuck on a repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI
Building an app?
Free API access to all this data — 10 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included. Built by the same team.
Try ShopBase →