Buick Enclave misfire problems

Filed Aug 31, 2026 · Electrical, Engine · MI

I purchased this used 2016 Buick Enclave in July 2026. Shortly after purchase, the vehicle began repeatedly jerking and hesitating while driving. During occurrences, Traction Control/StabiliTrak warnings appeared and the vehicle experienced loss of power and difficulty accelerating normally. I reported the jerking/drivability problem to the selling dealer. On July 27, 2026, the selling dealer attempted a repair after I reported the jerking/drivability problem. Within approximately five minutes of leaving the dealership, the vehicle began jerking again. I then took the vehicle to an auto-parts store, where an OBD-II scan produced multiple diagnostic trouble codes, including P0300 engine misfire and several MAP-sensor-related codes. I have photographs documenting the scan results. The vehicle became disabled shortly thereafter and required towing. It was subsequently evaluated by an independent repair facility, where the MAP sensor was replaced. The vehicle later again experienced the jerking/loss-of-power condition and StabiliTrak/Traction Control warnings. On August 10, the vehicle became disabled again. These incidents have occurred while driving in traffic. When the condition occurs, I cannot reliably accelerate or maintain normal vehicle operation, creating a safety concern because I may be unable to move safely with surrounding traffic. The specific cause is UNKNOWN. The vehicle has been evaluated by the selling dealer and an independent repair facility and is being taken to an authorized Buick dealership for further diagnosis. The vehicle is available for inspection.

Filed Mar 28, 2026 · Engine · IL

While sitting at a traffic light my engine runs rough, then it dies

Filed Dec 31, 2024 · Electrical, Fuel system · NC

My car has shut off multiple times , electrical shorts, intermittent no start, intermittent misfires all the time but randomly , injector codes even when replaced and injectors are good , yes come check out my vehicle no shops can find out what's the problem practically the whole front end has been replaced and problems still happening it is congruent with a recall but shows nothing from vin

Filed Oct 9, 2023 · Fuel system · FL

After filling up fuel, vehicle runs rough, hesitates, and stalls at idle speeds. This occurs after every fill up. The check engine light comes on and states an issue with the anti-lock brake system. I’ve had the vehicle checked by Buick 5 times and they have not been able to replicate the issue, so troubleshooting stopped. I know a recall came out this July for 2019 Buick Enclaves to replace the evaporative emissions purge valve due to not fully closing. This is the issue with my 2020 Buick Enclave and is a massive safety concern as the vehicle stalls while driving at slow speeds after fill up. Most recent event occurred on October 5th. I’ve posted a picture from last year that captured the same issue.

Filed Aug 11, 2023 · Acceleration, Engine · KS

I started my car at a CVS parking lot. When I made a turn, the car was out of control and I couldn't stop or turn the car. My car hit other three cars in the parking lot and finally stopped. The OBD-II code check later indicated a "Engine misfire detected". I once got a recall letter from GM for the following issue. Not sure if this accident is related to this issue. "Inoperative purge solenoid that could lead to excessive fuel vapors entering the combustion chamber from the fuel tank. This condition could result in no start, idle stall and possible drivability issues such as hesitation." The good thing is nobody got hurt in this accident.

Filed Aug 8, 2023 · Engine, Fuel system · MO

Vehicle lost power and stalled on interstate hwy 07/29/2023. GM dealer Heartland Chevy in Liberty MO. Repaired replacing fuel tank and sensor due to failed sensor in tank. 08/08/2023 Vehicle again for 2nd time rough idling and staling out several times on hwy. Currently at dealer who diagnosed with fuel sensor issue and still at dealer. Vehicle has approx. 20,000 miles 2023 Buick Enclave.

Filed Jul 24, 2022 · Airbags, Electrical · WI

Stabilitrack continues to cause problems with the car. I was traveling 60 mph and the stabilitrack and check engine light reduce engine power and car is unable to drive over 40 mph. This is a serious concern when on the highway. When this issue is tripped the car shakes and runs roughly. This car continues to have air bag relay or electrical issues even after fixing the seat belt harness which was recalled. This has been repaired by the dealership no less than 3 times and it feels as we are replacing parts which do not fix the issue. Having the car slow and limp home on a highway is dangerous and happens without warning. The dealership dismissed the airbag light and the second look says repair is needed for safety. So frustrating GM.

Filed Nov 12, 2020 · Engine, Steering · 27,200 miles · FL

Power steering stops functioning while driving and attempting to make a turn, resulting in a likely car accident. Driving in city making any king of turn either left or right. This has happened twice already. Rough idle when engine is cold.

Filed Feb 11, 2020 · Engine, Transmission · 20,000 miles · FL

Shortly after getting gas, the car will rev to 2-3rpm when lightly accelerating, and seem to "run rough". Then, after coming to a stop at a traffic light, the car will auto stop and then shift into neutral. I can not shift back into drive without pushing the start/stop button to restart the car. It does not happen every time I get gas, but all 3 times it has happened have been after getting gas. The first 2 times it happened, I was told there was a recall, which was the cause, but this last time, there was no recall, and they said there were no error codes, so they do not know what is wrong. The car stalling episodes occurred in august 2019, september 2019, and february 2020. It may or may not be related, but in october 2019, there were also 2 instances of an "evap leak" that were fixed.

Filed Nov 13, 2019 · Engine · 34,906 miles · OH

Tl* the contact owns a 2017 buick enclave. While the vehicle was stationary, the service engine warning indicator illuminated and the vehicle vibrated abnormally. The vehicle was turned off and restarted; however, the failure persisted. The vehicle was towed to mansfield buick gmc (1400 park ave w, mansfield, oh 44906, (419) 529-3211) where it was diagnosed that there were misfires on cylinder number one and number three. The vehicle was not repaired. The manufacturer was informed of the failure. The approximate failure mileage was 34,906. *cw consumer states that braking system pulsates when attempting to stop. Dealer determined this was caused because the front and rear pads were slightly warped. Vehicle was not repaired.