2008 Buick Lucerne engine problems

Filed Jul 30, 2025 · Engine, Transmission · 138,500 miles · OH

The contact owns a 2008 Buick Lucerne. The contact stated that while driving at approximately 15 MPH, the vehicle lost motive power. The low oil pressure warning light was illuminated, and the message "Add Engine Oil" was displayed. The vehicle was towed to an independent mechanic, where it was diagnosed that the catalytic converter was clogged and needed to be replaced. The vehicle was repaired, however, the failure recurred immediately. The vehicle was then towed to an independent mechanic, where it was diagnosed that the TCM had failed and needed to be replaced. The vehicle was repaired; however, the failure recurred approximately a week later. The vehicle was then towed to the same independent mechanic, where it was determined that the coil pack needed to be replaced. The vehicle was repaired; however, the failure persisted. The vehicle was towed to the residence. The contact stated that upon starting the vehicle, the vehicle experienced a rough idle and was undrivable. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 138,500.

Filed Jul 8, 2024 · Electrical, Engine · 120,000 miles · OH

The contact owns a 2008 Buick Lucerne. The contact received notification of the federal safety agency Campaign Number: 14V355000 (Electrical System) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated while driving at an undisclosed the vehicle lost motive power with the low oil pressure warning light illuminated. The dealer was contacted; however, the vehicle was not repaired. The manufacturer was not made aware of the issue. The failure mileage was approximately 120,000. Parts distribution disconnect.

Filed Sep 18, 2023 · Electrical, Engine · MI

I went to start the vehicle and it failed to start. I found the fuel pump relay to be badly burned 🔥. On the 30 pin. The board was melted at the 30 pin spot for the fuel pump relay. I purchased a new relay from NAPA. I questioned whether they had a new replacement fuel pump. They told me it was not available only through the dealership. My concern was that where the relay was located at there was a possibility of a fire given how badly the relay and board was burned. I replaced the relay and purchased an extra incase this might happen again. To my surprise it happen just days later while I was driving on the expressway. I had to get off the road immediately. Engine died, no power steering. I checked the relay, it was smoking hot. I will have to have the problem resolved. There is no way a relay should ever get hot, let alone that hot. The fuel pump fuse was not effected. Why is the relay not protected from getting so hot. There is definitely a real risk of fire. No one sits in the back seat normally. But, my grandson's. This should not ever happen.

Filed Mar 11, 2022 · Engine · NJ

Engine coolant leak at engine timing belt cover per repair service. Not available for inspection , already had repaired (see attached invoice). Had to pull over on busy major roadway due to high temperature warning on temperature gauge. Problem confirmed by service center.

Filed Nov 9, 2021 · Engine · 72,479 miles · KS

The contact owns a 2008 Buick Lucerne. The contact stated while driving approximately 20 MPH, the vehicle stalled without warning. The contact was unable to restart the vehicle. The contact stated there was no warning light illuminated. The vehicle was towed to the residence. The vehicle was inspected by a local mechanic and diagnosed with needing the fuel pump relay to be replaced. The vehicle was repaired however, the failure persisted. The manufacturer was not informed of the failure. The failure mileage was 72,479.

Filed Aug 30, 2021 · Electrical, Engine · MD

1. Fuse box was replaced, yes. 4th repair shop replaced. I say only time will tell for sure. i don't drive every day 2. driving I-95 from VA to MD at speeds of 30+ to 75+ cars driving close behind could have ran into rear causing my car, their car, and multiple other cars to be in major accident with possible multiple deaths. 3. reproduced, no. independent service center, no 4. No. Other - the 4th repair shop inspected vehicle component. 5. No warning lamps. No messages or symptoms, car just stalled and would not start/move and w​hen I tried to start car again car would not start, but had all kinds of warnings lamps lit up. The first time the engine stalled was driving (moving) into entrance of toll booth in Richmond, VA, July 27, 2021 approx. 2:15 pm. additional info: Four (4) times car stalled while driving in traffic without warning, car would not start again had to be towed each time to a repair shop. Three (3) repair shops did not repair the problem. First repair shop charged me approx. $350.00 +- for repairs. PLUS I had to stay over night in hotel costing me approx. $120.00+- Total $470.00 +- Car still had same problem!! Second repair shop did not charge me for repairs, but not sure if any work was done, had to get a car rental to get back to Maryland. s second shop kept car ofr 6 days before working on problem. Car rental cost me $467.27. Total $467.27 Car still had same problem!!! Third repair shop kept car for 5 days, charged me approx. $125.+-, still the car had the same problem. Total $125.00+- Car still had same problem!!!! Fourth repair shop says he found fuse box to be the problem, repair cost me approx $554.00+- Total $554.00 My total expenses are approx. $1,491.20 only time will tell if problem has been fixed, not to mention the extreme emotional stress dealing with delays on repairs and extreme emotional stress driving not knowing when or how car would stall again.

Filed Sep 28, 2020 · Engine · 40,000 miles · IL

Tl* the contact owns a 2008 buick lucerne. The contact stated while driving, the accelerator pedal was depressed and the vehicle jerked with an abnormal thud before responding. Mike haggerty buick gmc, inc. (9301 s cicero ave, oak lawn, il 60453; (708) 762-9813) was contacted and the contact was informed that the passenger's side motor mount needed to be replaced. The vehicle was repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 40,000.*dt

Filed Sep 11, 2020 · Engine · 56,000 miles · OH

The engine it's shutting off while driving, and after it gets cold it will restart, but after driving again another few miles it will shut off again. There are no lights on, so no mechanic to tell me what the problem is. I even called the dealer, and I was told that they can't diagnose the car because is no check engine light on.. I tried few different auto shops with no answer, so my car is parked in the driveway because I'm scared to drive it, I don't know how or when the engine will stop.. Another mechanic told me to drop the car to his shop but it make 2 weeks of work to find out the problem and I will have to pay for 2 weeks, and than to pay to fix it. It usually stops while in motion when close to the a traffic light, when I make a turn and always when I slow down

Filed Nov 25, 2019 · Engine · 60,000 miles · MI

The front engine mount has broken and been replaced two times in under 100k miles. Loud clunk is present on take off, shaking and vibration when accelerating is present too. The first time was just outside of warranty at 60k miles.

Filed Jun 18, 2019 · Engine, Fuel system · 211,000 miles · TX · fire

Tl* the contact owns a 2008 buick lucerne. The contact stated while driving at an unknown speed, the vehicle stalled with no warning. The vehicle was unable to restart and towed to a truck stop. The contact stated that upon investigating the failure, discovered that the fuel pump relay was melted and burnt. The contact stated that prior to the discovery no smoke or fire was noticed under the rear seat where the fuel pump relay was located in the fuse box. The contact stated he purchased and replaced the part himself. The vehicle was able to start and the vehicle was driven to the contact's residence. The vehicle was not taken to an independent mechanic or dealer for diagnosis or repairs. The manufacturer was not made aware of the failure. The approximate failure mileage was 211,000.