Buick Enclave owners have reported 67 other fuel system related problems since 1996. Table 1 shows the 6 most common other fuel system problems. The number one most common problem is related to the vehicle's other fuel system (56 problems). The second most common problem is related to the vehicle's other fuel system tank assembly (6 problems). For details of each of the problem category, use the links in the table.
The vehicle developed an exhaust leak caused by both weld points on the front exhaust pipe breaking. A dealership inspected the vehicle and confirmed that the exhaust welds had failed, creating a hole in the exhaust pipe and triggering a p0420 catalyst efficiency code. Read details...
Possible electrical short? fuel gauge dropped over an eighth of a tank when just filled it up and drove 2 miles home. Next time I started it up it displayed the aforementioned. Has done this a few times now. Read details...
The fuel gauge reads 1/4 full then a couple minutes later read empty. It fluctuates constantly giving the wrong reading. Several others have had the same issue with this same year, make and model vehicle. Read details...
I purchased a new Buick Enclave in 2013. At 116,000 miles, my car all of sudden decelerated while on the highway. I was able to get off the road but it would not accelerate past 35 mph. I managed to get it home by taking street side. Read details...
On multiple occurrences, the fuel gauge does not accurately reflect the amount of fuel in the tank. It shows far less. Sometimes by turning on and off the car, it will reset. Other times it will take a day to reflect the right amount. Read details...