Back to search

2011 BUICK REGAL

2.0L Turbo I4•FWD•AUTOMATIC•gas•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 Regal →
5-Year Cost of Ownership
$28,005 maintenance + known platform issues
~$5,601/yr · 470¢/mile equivalent · $6,146 maintenance + $5,009 expected platform issues
Compare this engine
vs
3.6L V6
vs
2.4L I4 Hybrid
Common Problems & Known Issues

The 2011 Buick Regal with the 2.0L turbo is essentially a rebadged Opel Insignia — European roots mean tight packaging and some expensive repair access issues. The turbo four is smooth when healthy, but timing chain and PCV system failures can cascade into catastrophic engine damage.

Timing Chain Stretch and Failure

Common · high severity
Typical onset: 80,000-120,000 mi
Symptoms: Cold-start rattle that lasts 3-10 seconds before quieting down, Check engine light with cam/crank correlation codes (P0011, P0014, P0016, P0017), Loss of power, rough idle, or engine stalling in severe cases, Metal shavings in oil if chain has been slapping guides
Fix: Requires front engine disassembly including intake manifold, valve cover, and timing cover removal. Replace chain, tensioner, guides, and both VVT solenoids. Critical: if chain jumped time, valves likely contacted pistons—requires head removal and valve inspection. Book time 12-16 hours for chain service alone; add 8-12 hours if head work needed.
Estimated cost: $2,800-4,500 for chain service; $6,000-9,000 if internal engine damage occurred

PCV System Failure Leading to Piston Ring Damage

Common · high severity
Typical onset: 70,000-110,000 mi
Symptoms: Excessive oil consumption (1 quart per 1,000 miles or worse), White/blue smoke from exhaust on startup or acceleration, Valve cover or intake manifold oil leaks from pressure buildup, Rough idle and misfires as carbon builds up on valves
Fix: The PCV valve is integrated into the valve cover ($300-400 part). If caught early, replacing valve cover assembly with updated PCV design may save the engine (4-5 hours labor). If ignored, crankcase pressure forces oil past rings, carbons up cylinders, and requires piston ring replacement or full short block. Rings alone: 20-24 hours. Short block replacement: 24-30 hours including fluids, timing chain, and gaskets.
Estimated cost: $800-1,200 for valve cover PCV fix; $5,500-8,500 for piston rings; $8,000-12,000 for short block

Transmission Oil Cooler Line Failure

Occasional · high severity
Typical onset: 60,000-100,000 mi
Symptoms: Transmission fluid leak pooling under engine bay, usually driver side, Burnt transmission fluid smell after driving, Slipping gears or delayed engagement if fluid level drops, Pink or red fluid visible on ground or engine undertray
Fix: Metal cooler lines corrode or crack where they connect at the radiator or transmission. Requires replacement of hard lines and sometimes the cooler itself if internal contamination occurred. Must drop undertray, sometimes subframe for access. Flush transmission and check for metal debris. Book time 3-5 hours depending on which line failed.
Estimated cost: $600-1,200

Turbocharger Wastegate Rattle and Failure

Occasional · medium severity
Typical onset: 90,000-130,000 mi
Symptoms: Metallic rattle from engine bay on cold starts or light throttle, Loss of boost pressure, sluggish acceleration above 3,000 RPM, Check engine light with underboost codes (P0299), Turbo whine or whistle that wasn't there before
Fix: Wastegate actuator arm wears and rattles inside the turbo housing. Some techs try adjusting the actuator rod, but it's temporary. Proper fix is turbo replacement, which requires removing heat shields, downpipe, oil feed/return lines, and coolant lines. Book time 6-8 hours. Aftermarket turbos available for $800-1,200; OEM is $1,800-2,400.
Estimated cost: $1,800-3,200

Front Engine Mount (Torque Strut) Failure

Common · low severity
Typical onset: 60,000-90,000 mi
Symptoms: Clunking on hard acceleration or deceleration, Vibration through steering wheel at idle, especially when A/C compressor kicks on, Visible engine movement when revving in park, Transmission shifter vibration in gear at stoplights
Fix: The upper torque strut mount (hydraulic) collapses and allows excessive engine motion. Fairly straightforward replacement from the top of the engine bay. Book time 1.5-2 hours. Use OEM or quality aftermarket—cheap mounts fail within 10,000 miles.
Estimated cost: $300-550

Direct Injection Carbon Buildup

Common · medium severity
Typical onset: 50,000-80,000 mi
Symptoms: Rough idle, especially when cold, Misfires under load (codes P0300-P0304), Hesitation or stumble during acceleration, Reduced fuel economy
Fix: Direct injection means no fuel washing intake valves, so carbon accumulates. Requires walnut blasting the intake valves with the intake manifold removed. Book time 4-5 hours. Some shops use chemical cleaners as a bandaid, but walnut blasting is the proper fix. Should be done preventively every 60,000-80,000 miles on these engines.
Estimated cost: $600-1,000
Owner tips
  • Change oil every 5,000 miles with quality synthetic—extended intervals kill the timing chain and PCV system on these engines
  • Replace the valve cover with updated PCV design around 60,000-70,000 miles as preventive maintenance if you plan to keep the car long-term
  • Walnut blast the intake valves every 60,000-80,000 miles to prevent carbon-related misfires
  • Check transmission fluid level and condition every 30,000 miles—these 6-speeds don't tolerate abuse or low fluid
  • Listen for timing chain rattle on cold starts; if you hear it, budget for the repair immediately before internal damage occurs
Only buy one if you can verify timing chain and PCV system have been addressed, or if you're prepared for a $3,000-8,000 engine repair bill; otherwise the European design and turbo four make it a solid highway cruiser when maintained properly.
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.
539 jobs across 17 categories
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota 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 — 20 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 →