The 2022 GMC Acadia represents the second-generation refresh with improved build quality over earlier models, but the 3.6L V6 carries forward piston ring and timing chain issues from prior years, while transmission oil cooler failures remain a platform weakness across both engines.
3.6L V6 Piston Ring Failure & Excessive Oil Consumption
Occasional · high severityTypical onset: 40,000-80,000 mi
Symptoms: Burning 1+ quart of oil every 1,000-2,000 miles, Blue smoke from exhaust on cold start or acceleration, Check engine light with P0300-series misfire codes, Fouled spark plugs requiring frequent replacement
Fix: Requires complete engine teardown, piston ring replacement on all cylinders, often includes cylinder honing. 18-24 labor hours. Some cases need full short block if cylinder scoring is present. GM extended warranty covered some earlier cases but 2022s are hit-or-miss on goodwill.
Estimated cost: $4,500-7,500
Transmission Oil Cooler Line Leaks
Common · medium severityTypical onset: 30,000-70,000 mi
Symptoms: Transmission fluid spots under vehicle near radiator area, Low transmission fluid level on dipstick check, Slipping or delayed shifts when fluid gets critically low, Pink or red fluid visible around radiator or cooler lines
Fix: Replace transmission oil cooler lines and fittings, flush contaminated coolant if cross-contamination occurred. 2-3 labor hours if caught early. If coolant enters transmission, full trans rebuild required adding 12+ hours.
Estimated cost: $400-900
3.6L V6 Timing Chain Stretch & Guides
Occasional · high severityTypical onset: 80,000-120,000 mi
Symptoms: Cold start rattle lasting 5-15 seconds from engine front, Check engine light with P0008, P0011, P0014 cam correlation codes, Rough idle or hesitation during acceleration, Metal shavings in oil during changes
Fix: Replace both timing chains, guides, tensioners, cam phasers, and front cover gaskets. 14-18 labor hours. Critical to address before chain jumps timing which causes valve-to-piston contact and catastrophic damage.
Estimated cost: $3,200-5,000
Rear Suspension Trailing Arm Bushing Failure
Occasional · medium severityTypical onset: 50,000-90,000 mi
Symptoms: Clunking noise from rear over bumps or when reversing, Steering wheel off-center after hitting bumps, Uneven rear tire wear on inside edges, Vehicle feels loose or unstable during lane changes
Fix: Replace rear trailing arm bushings, typically both sides recommended. Requires alignment after. 3-4 labor hours. NHTSA recall 22V-354 covered some units for suspension links but bushings often fail separately.
Estimated cost: $600-1,100
Transmission Mount Collapse (Front Mount)
Common · low severityTypical onset: 40,000-80,000 mi
Symptoms: Vibration felt through steering wheel at idle in Drive, Clunk when shifting from Park to Drive or Reverse to Drive, Excessive engine movement visible when revving in Park, Vibration worsens with A/C compressor engaged
Fix: Replace front transmission mount. 1.5-2 labor hours. Hydraulic-style mount fails internally, loses dampening. Simple fix but significantly improves drivability.
Estimated cost: $250-450
Fuel Pump Module Failure
Rare · high severityTypical onset: 60,000-100,000 mi
Symptoms: No-start condition with crank but no fire, Engine stalling at operating temperature randomly, Fuel pump whine louder than normal from rear seat area, Check engine light with P0087 low fuel pressure code
Fix: Replace complete fuel pump module assembly. 2-3 labor hours. Tank must be dropped. Recall 22V-636 addressed some fuel tank strap issues but pump itself fails separately on high-mileage units.
Estimated cost: $800-1,400
Skip the 3.6L V6 models entirely due to piston ring history; if buying used, the 2.5L I4 is the safer bet with fewer catastrophic failure points, but budget $1,500-2,000 for deferred maintenance items between 50,000-80,000 miles.
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.