2014 BUICK ENCORE Fuelpropulsion System Problems

The car only has 54700 I am orginal owner. Drivers seat does not work, Catalytic converter, GM Service Bulletin #43210. Ask if your VIN is affected or if they’ve seen similar failures in 2014 models. This car is a lemon.

On March 18 , 2025 I purchased a 2014 Buick Encore with an implied warranty, the vehicle had 128,644 miles on the odometer. At the time of purchase the check light was not on and the vehicle had no visible or audible mechanical issues. Not 14 days after purchase there was a strong odor of burning oil due to an oil leak dripping into the splash shield. A certified mechanic advised me that the problem was a very common issue with the 2014 Buick Encore and the oil cooler associated with the turbo charger needed to be replaced. This issue is so common that the NHTSA issued a GM part failure warning for the 2017 model and instructed GM to reimburse all vehicle owners to replace the part (N232395330). This issue clearly a problem that needs to be addressed with the 2014 model as well. My mechanic said that auto...

SERVICE ENGINE LIGHT (PO420 CODE) CAME ON AND VEHICLE BEGIN TO VIBRATE AT START UP ESPECIALLY. TEMP GAUGE SHOWED OVERHEATING WITH NO SIGNS OF OVERHEATING. THERMOSTAT HOUSING REPLACED. SERVICE ENGINE LIGHT CAME ON AGAIN AFTER REPAIR. MECHANIC SHOP REPLACED CONVERTER THAT WAS FAULTY (PO420 CODE) A WEEK LATER. SERVICE ENGINE LIGHT CAME ON (PO 420 CODE) (171 CODE) MECHANIC SHOP REPLACED CATALYTIC CONVERTER, R&R FRONT. , LEFT SHOP THAT DAY ENGINE LIGHT CAME ON AGAIN. REPLACE CATALYTIC SENSOR, NEXT DAY SERVICE ENGINE LIGHT CAME ON AGAIN. REPLACE OXYGEN REGULATOR PART AND VALVE COIL, (SAME CODES EVERYTIME), THE SERVICE ENGINE LIGHT CAME ON AGAIN 2 DAYS LATER. I HAVE SPENT OVER $1300.00 AND STILL HAVE THE ENGINE SERVICE LIGHT ON. I HAVE BEEN DRIVING VEHICLE DURING THIS TIME.I HAVE INVOICES FOR THE REPAIRS.

CAMSHAFT COVER FAILED PCV SYSTEM HAD COVER REPLACED AT 50,000 MILES UNDER POWER TRAIN WARRANTY ENGINE LIGHT COMES VEHICLE STALLS AT STOP LIGHT THIS HAPPENED AGAIN AT 80,000 MILES THIS TIME BECAUSE OF CAUSING TO MUCH VACUM HAD TO REPLACE INTAKE MANIFOLD GASKET SO IT IS MY THOUGHT MAYBE BUICK SHOULD PUT THIS CAMSHAFT COVER WITH PCV SYSTEM ON RECALL SAME PART FAILED AGAIN.

TURBO HAS UNDERBOOST, CAR RUNS FINE OTHER THAN LOSING POWER, ALL FLUIDS LOOK GOOD

CRACKED VALVE COVER FIRST OCCURRENCE WAS AUGUST OF 2017. THIS WAS REPLACED UNDER WARRANTY. SECOND OCCURRENCE HAPPENED JANUARY 6,2019. THIS OCCURRENCE CAUSED MULTIPLE FAILURES AND COST ME $727 TO HAVE REPAIRED. SYMPTOMS WERE NOTICEABLE OFF SHIFT POINTS DUE TO LACK OF POWER AND TOO MUCH AIR TO TURBO . ALSO A SURVIVING OF THE ENGINE WHEN GOING UP STEEP HILLS . THIS IS A KNOWN ISSUE AS BOTH TIMES THE DEALER KNEW WHAT THE PROBLEM WAS AND HAD PARTS ON HAND TO FIX . I TOOK VIDEO OF BOTH TIMES FOR MY RECORDS.

EXPERIENCING OIL BLOW BY IN CYLINDER BLOCK AND CATYLIC CONVERTER FAILURE

THE BUICK ENCORE HAS 15,000 MILES ON IT, THE LAST 2,000 MILES OR SO THE ENGINE HESITATES ANY SPEEDS. IT DOES NOT STALL BUT IT KEEPS HESITATING. THE CAR HAS BEEN TAKEN TO THE DEALERSHIP TWICE, THE PROBLEM HAS NOT BEEN FIXED