2017 Buick Encore Engine Problems

The contact owns a 2017 Buick Encore. The contact stated that while driving at an undisclosed speed, the vehicle experienced a sudden loss of power and went into "LIMP Mode". Additionally, there was smoke coming from the rear of the vehicle. The dealer was notified of the issue but declined to service the vehicle because the vehicle had a salvage title. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 88,000.

The contact owns a 2017 Buick Encore. The contact stated that while driving at 40 MPH, the engine was running rough, and the vehicle experienced reduced power. The stabili-trak and the check engine warning lights were illuminated. The vehicle was taken to Auto Zone, where a diagnostic trouble code for a cylinder misfire was retrieved. The vehicle was taken to an independent mechanic, where the cylinder #1 ignition coil and spark plug were replaced, but the failure persisted. The mechanic determined that the engine might need to be replaced; however, the mechanic did not specialize in engine diagnostic tests. The manufacturer was notified of the failure and referred the contact to the dealer for a diagnostic test. The vehicle was taken to the dealer, where it was diagnosed, and it was determined that the engine needed to be replaced. The contact related the failure to GM Special Coverage Number: N232395330; however, the manufacturer informed the contact that the VIN was not included, and the contact was referred to the NHTSA Hotline for assistance. The vehicle was not repaired due to the cost. The failure mileage was approximately 44,000.

4/2025-Engine coolant water outlet needed to be replaced 5/2025- Turbo boost replaced (under recall) 6/2025- Engine fan needed to be replaced 12/2025- There was active leaking in the engine oil cooler and lines- needed to be replaced Engine ventilation , engine oil weep along valve cover seals- needed to be replaced

The contact owns a 2017 Buick Encore. The contact stated that while driving approximately 25 MPH, the contact smelled smoke and became aware that the smoke was coming from under the hood. The failure reoccurred while driving the following day. The vehicle was driven to an independent mechanic, where it was diagnosed, and it was determined that the turbocharger needed to be replaced. The vehicle was repaired. The contact received notification of Special Coverage: N232395330 (Turbocharger Replacement), and the manufacturer was contacted for reimbursement. A case was opened; however, the manufacturer later informed the contact that the reimbursement claim was denied because the vehicle was not repaired by a dealer. The failure mileage was approximately 48,000.

I have went to the dealership for the past two years with this problem and they keep saying they are not getting any codes: when the air conditioner is on it’s pulling the power from the motor and makes it hard to go up hill. Hard To accelerate when going on to the freeway as well. The problem is only getting worse and worse.

The contact owns a 2017 Buick Encore. The contact stated while driving at approximately 45 MPH, the accelerator pedal was depressed, and the vehicle hesitated with the check engine warning light illuminated. The contact stated that the vehicle lost motive power and then suddenly jerked forward. The contact had taken the vehicle to a local dealer where it was diagnosed and determined that the turbocharger was failing and needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure and referred the contact to the NHTSA Hotline to report the failure. The contact researched online and related the failure to Special Coverage Turbocharger Replacement: N232395330; however, the VIN was not included. The failure mileage was approximately 118,000.

The turbo charge is not providing adequate power. I was on the highway and the car began to chugging then accelerated on its own and all the lights on the dash came on then all went off like it was going to shut down. I put my hazards on and started to pull to the side of the highway. I gave it a moment for the car and for me because I was terrified, my kids were in the car and traffic was going steady around 70-75 miles per hour and I was scared as it began to shut down that I would be hit by traffic behind me before I could get over. It started driving again. It still drives but is hard to accelerate and even when stopped you can see the RPM rising. It’s as if the car never idles, it feels as though is constantly under load. I have had it looked at professionally at Midas but they will only say they think it is the turbo as there are no codes coming up. I have had it looked at by mechanics I know who have fixed other things that may cause similar issues and nothing has worked and they also believe it is the turbo. I’ve know other people with Buicks and they have had similar problems I’m confused as to why this 1.4 liter turbo has not been recalled.

The contact owns a 2017 Buick Encore. The contact stated that while driving at various speeds, the message "Engine Power Reduced" was displayed on the instrument panel. The check engine warning light was illuminated. The vehicle was taken to a local dealer however, the failure could not be duplicated. The contact stated that the failure persisted, and the vehicle was taken back to the same local dealer where it was diagnosed that the failure was related to Special Coverage: N232395330; however, the VIN was not included. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 88,881.

The contact owns a 2017 Buick Encore. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the check engine warning light illuminated, and the vehicle lost motive power. In addition, the contact stated while the vehicle was at a stop light, the vehicle was idling roughly. The vehicle was towed to an independent mechanic where it was diagnosed with a failed turbo charger. The contact was informed that the turbo charger needed to be replaced. The vehicle was repaired. The dealer was made aware of the failure but provided no assistance. The manufacturer was made aware of the failure but provided no assistance. The contact was advised that the repair was not covered under any special coverage or recalls. The failure mileage was approximately 80,000.

My vehicle just got diagnosed with a turbocharger issue, check engine light is on and cannot get inspected due to this fact. Due to repair costs, I will now be living with no vehicle for the foreseeable future. I understand this is a known issue for this type of vehicle and wanted to report it attached to my VIN

1. Valve cover gaskets been replaced in valve covers been replaced twice. 04/16/2024. 95113 miles 2. Air conditioning cooling leak and the fan motor would not shut off unless disconnecting the battery cable. 08/26/2024 at 100,254 miles 3. The turbocharger inline for the oil intake has been replaced . The car cannot completely carry a full carload without having no power to get up hills. I have no power once in a while if I'm alone driving just on a straight road or going uphills it seems like there's no gas getting to it I have good gas but it doesn't happen all the time. And I guess to where it will slow down from 55 to 35 pushing on the gas pedal with no power at all and then all the sudden it will go. Trying to explain this the best I can. 09/29/2024 at 101, 313 miles

The contact owns a 2017 Buick Encore. The contact stated that while driving at approximately 65 MPH, the vehicle suddenly stalled, with the check engine warning light illuminated. The vehicle was able to be restarted. The contact was able to drive a short distance to the residence. The vehicle was taken to the dealer where it was repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 176,000.

Turbo replaced under recall in March 2024 at local GMC dealership. June 2024 oil changed at independent service center and was informed that oil leak from turbo present. Vehicle brought back to dealership in June 2024 where vehicle was repaired for oil feed line being loose at the feed line. July 2024 car taken to independent mechanic and informed that a new turbo is needed. If turbo problem persists it will result in the vehicle shutting down while driving, violent shaking of the engine, and acceleration issues that could result in full engine failure if not resolved. The repairs done for the recall has not rectified the faulty turbo problem. The faulty turbos originally installed and being used for replacements are a safety hazard for any Buick Encore driver.

Turbo has cracked like multiple other encores covered under a recall N232395330 id like to know why my car is not covered but the others are??

My check engine light came on in February 2024, vehicle mileage at the time was approximately 70,000 miles. My certified GM independent mechanic's diagnostic check revealed a DTC-P0299 code: faulty turbo charger. He advised repairs be made at a GM dealer under Special Coverage N-232395330 released in February 2024 by GM. My GM dealer (where I purchaser the vehicle) has also received the P0299 code and advised replacing the turbo charger. But since my VIN number is not a part of the Special Coverage, the cost of repairs would be my responsibility. I am requesting my vehicle's VIN be added to the Special Coverage and GM provide me the appropriate customer letter to cover all costs related my repair work.

There is a known defect with the GM Ecotec engines, specifically the lack of retaining clip for the internal PCV valve, allowing it to become dislodged and drawn into the engine. Without the PCV valve, tremendous engine pressure is produced, leading to broken gaskets causing vacuum leaks, misfiring, severe vibration, and loss of power when accelerating (which can be a safety issue). Dorman produced a video outlining the issue and has re-engineered the part to prevent the issue from occurring: "Why GM 1.4L Ecotec engine intake manifold and valve covers repairs are often related" [XXX] This appears to be a fairly wide-spread issue with the GM Ecotec engines, and GM should perform a recall to replace these parts, and reimburse those who had to replace themselves. This also causes error codes requiring spark plugs to be replaced (they get fouled by oil) and the MAF Sensor. In troubleshooting, I also had to replace the distributor power bar and air intake hose. I have recipts for all parts, but file upload is not working on this site. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

See attached document for complaint

The contact owned a 2017 Buick Encore. The contact stated that the vehicle was at a standstill in a traffic light, she saw smoke exiting from the hood of the vehicle. The contact stated no warning light was illuminated. The contact stated a bystander informed the vehicle was on fire. The contact was able to exit the vehicle safely before the vehicle was engulfed in flames. The contact stated no one was injured nor sought medical attention. The fire department was able to extinguish the fire. A police report was filed. The insurance company deemed the vehicle was a total loss. The vehicle was towed to a towing lot. The vehicle was not diagnosed. A dealer was not contacted. The manufacturer had not been informed of the failure. The failure mileage was approximately 47,000.

Bought a 2017 Buick Encore November 2020 less than 6 months into owning the car check engine light came on. Purge solenoid as well as the Camshaft and 1 other component had a leak brought it to dealership and it was covered under warranty for repairs. Fast forward about a year and a half there is another leak will be bringing back to dealership and paying out of pocket for leaks because of a rough idle, poor fuel economy, and another check engine light problem. Have also read articles about this particular cars not fairing well in the temperatures changes during the seasonal changes. Yet there is no recalls and no mention of Buick or GMC being held responsible for this recurring problem.

The contact owns a 2017 Buick Encore. The contact stated while driving at various speeds, the engine overheated, and there was smoke coming from the front of the vehicle. The contact stated that the temperature gauge indicated that the engine was hot. There was no warning light illuminated. The vehicle was taken to a local dealer where the vehicle was diagnosed and the contact was informed that the water outlet housing, the blower motor, A/C condenser, water pump, thermostat, thermostat housing, turbo charger, and the fan were faulty and needed to be replaced. The vehicle was repaired; however, the failure persisted. The manufacturer was notified of the failure. The approximate failure mileage was 60,189.