Buick Encore hesitation problems

Filed Oct 19, 2026 · Engine · 30,000 miles · OH

The contact owns a 2019 Buick Encore. The contact stated that while driving at various speeds, the vehicle hesitated upon depressing the accelerator pedal. Additionally, the vehicle hesitated to start after multiple attempts. The vehicle was taken to the independent mechanic where it was purchased, and the mechanic replaced the oxygen sensor. Despite the repair, the failure recurred intermittently. The contact stated that the check engine warning light illuminated, and the vehicle was taken to a second independent mechanic. Diagnostic trouble codes retrieved via an OBD-II scanner indicated catalytic converter issues; however, the mechanic determined the failure was related to the flex plate. The contact was referred to a dealer, where the contact was informed that the repair was not covered under warranty. The manufacturer was notified of the failure and assigned a case number. The contact was referred to the federal safety agency Hotline to file a complaint. The vehicle was not repaired. The failure mileage was approximately 30,000.

Filed May 8, 2026 · Airbags, Engine · AL

Car has airbag light on. The car keeps leaking which then caused damage to my spark plugs and coil pack. It then led to the O2 sensors being burned. It has been at the dealership multiple times within a 3-week time frame. The low fuel light comes on when it is on a full tank, then it begins to hesitate and the car lunges forward when at a complete stop. Tires act like they cannot keep traction when all 4 tires are brand new and front rotors and brakes have been replaced. Yes, all my concerns have been brought to many dealerships' attention. It is unsafe and unreliable. The dealership said they could not replicate the issue but once I get back into my car it starts up.

Filed Feb 2, 2026 · Fuel system · WI

Turbo exhibits exact same symptoms of 17-18 encore recall for the turbo. I frequently get the p0299 code the car becomes sluggish and hesitates to take off from a stop when this code comes on making this car dangerous to drive. This issue has almost caused multiple accidents because the car is so under powered that its hard to get the car across traffic without being hit. I have been having this issue for several years and no one has been able to tell me why the car does this.

Filed Dec 16, 2025 · Driver assistance, Fuel system · IL

85,000 miles bought new. Was having hesitation and power issues, experienced increased fatigue the longer I drove. Took it in for service at 85,000 miles and the turbo PVC valve was bad as well as the catalytic converter. I’ve never had a catalytic converter go bad on any vehicle in my 42 years of driving. Cost = $2,000 for just the catalytic converter and extended warranty covered. Advised at time of being repaired that blind spot monitoring on right side of passenger mirror was malfunctioning. The dealer insisted I make a separate appointment which is another $100 co-pay so they can fix it. I was told the insurance company may delay or deny the claim. I know that can’t be true but my boyfriend has cancer and need the vehicle back asap for his treatment transportation. Sounds like problem with Encore.

Filed Nov 11, 2025 · Engine · OH

Component failure: the engine timing chain. Yes, it is available for inspection. Safety risk: vehicle hesitated and lost power in traffic, causing my vehicle to automatically slow down where I was no longer driving at the speed limit. My safety and other drivers around me was compromised as this could have caused a major accident should I have been rear ended. I had it towed to lambert buick, cuyahoga falls, ohio. They diagnosed a timing chain malfunction which was confirmed by dealership diagnostic testing. I was advised not to drive vehicle due to engine damage potential. I had it towed back to my home and have not driven it since. Vehicle has not been inspected by the manufacturer, police, insurance or anyone else. There was no warning, messages or any symptoms prior to the engine timing chain issue. A warning light only came on when the car hesitated and lost power in traffic.

Filed Oct 3, 2025 · Fuel system · OR

I've been dealing with a frustrating car issue lately where my vehicle keeps stalling and hesitating during acceleration - whether I'm pulling away from a stop or trying to pick up speed on the road. After getting it checked out, my mechanic determined that the high pressure fuel pump control module is the culprit and needs replacement. The problem is, we're stuck waiting for the part because Buick has it on backorder indefinitely. What's particularly concerning is that GM recently issued a recall for this exact same fuel pump issue on certain models, but somehow my VIN number didn't make the cut. I strongly believe it should have been included, especially considering the safety implications here. When this fuel pump control module fails, it can completely cut off fuel flow to the engine, which creates a serious traffic safety hazard. Nobody wants their car suddenly losing power while merging onto a highway or navigating through an intersection. This isn't just an inconvenience - it's a legitimate safety concern that affects real people on real roads every day.

Filed Sep 15, 2025 · Engine · CO

The contact owns a 2015 Buick Encore. The contact stated that while depressing the accelerator, the vehicle hesitated before accelerating. The contact became aware of oil underneath the vehicle on the driveway, resulting in a complete loss of power. The vehicle leaked oil and lost the vehicle lost power twice. The check engine warning light was illuminated. The contact inspected the vehicle and determined that the mass air flow sensor had failed. The MAF sensor was replaced twice, the Oxygen sensors were replaced three times, and the turbocharger was replaced once. The failures persisted. The manufacturer was not informed of the failure. The failure mileage was unknown.

Filed Jun 23, 2025 · Driver assistance, Transmission · 147,000 miles · FL

The contact owns a 2018 Chevrolet Encore. The contact stated that while operating the vehicle, the transmission malfunctioned while in first gear, and the vehicle hesitated to accelerate from being stationary. Additionally, the message "Stabilizer" was displayed. The cause of the failure was not yetbeen determined. The manufacturer was notified of the failure, but no assistance was offered. The local dealer was not contacted. The failure mileage was 147,000.

Filed May 7, 2025 · Engine · 118,000 miles · VA

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 federal safety agency 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.

Filed Nov 15, 2024 · Engine, Transmission · MI

I purchased my 2016 Buick encore from the car dealer name [XXX] in Rochester Michigan. I purchased it in December 20 23 beginning in January when I would change gears the car sounded like the gears were clunking like they were gonna fall out or something. also, the engine hesitates and then excels really fast like I’m racing. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)