2009 Buick Enclave: misfire or rough idle

Filed Jul 23, 2019 · NC

11/28/2018 I authorized leith buick gmc truck inc to repair cylinder #2 and #4 engine coils and spark plugs. 3/3/2019 #2 cylinder began misfiring. 3/7/2019 replaced the engine coil and found that part did not match my invoice. 4/10/2019 took off #4 and found it did not match my invoice. They charged me for either faulty parts or work they did not do.

Filed Sep 10, 2017 · Acceleration, Engine · 135,000 miles · NC

Car shudders and has problems accelerating when gears shifts. Diagnosis=replace bank 1 camshaft actuator worn timing chains, replace all spark plugs and 3 ignition coils again. (performed pfi system dia test. Codes fired p0017 and p0300 stored. Correlation and misfire coes).

Filed Apr 12, 2017 · Engine, Transmission · 130,000 miles · MI

Tl* the contact owns a 2009 buick enclave. While driving 45 MPH, the vehicle hesitated, jerked, and failed to accelerate. The vehicle was taken to an independent mechanic who diagnosed that the #1 cylinder misfired and the plugs and pcv valves were replaced. The mechanic then took the vehicle for a test drive and diagnosed that the transmission failed and the vehicle could no longer be shifted into reserve, third gear, or sixth gear. It was diagnosed that the transmission wave plate failed and needed to be repaired or replaced. The vehicle was not repaired. The manufacturer stated that there were no open recalls. The approximate failure mileage was 130,000.

Filed Mar 31, 2015 · Engine, Fuel system · 100,000 miles · PA

While driving, I noticed my engine started sputtering and had problems accelerating. Soon afterwards, the "malfunction indicator light" (aka check engine light) came on and stayed on. I contacted the dealer and took it in for repair. It was diagnosed as "pistons misfiring". I had pistons/cylinders replaced at a cost of several hundred dollars. A couple of months later, the same thing happened and I had other pistons/cylinders replaced. This has happened about a half dozen times between march 2014 and today (march 2015). I have paid thousands of dollars for this same problem and I do not understand why a recall has not been issued. The dealer told me that there are several pistons/cylinders that can trigger this problem. Just by doing a simple search online, I see that many others have experienced this problem with the buick enclave. As of today, 31 march 2015, my engine began sputtering and the check engine light came on again. I have lost faith in buick behind this and I do not believe I will purchase another buick.

Filed Jul 29, 2014 · Acceleration, Steering · 67,878 miles · OK

In the past I had jerking or slipping of transmission at approximately 40 miles an hour, or the engine was having a coil miss fire. I had 3 new coils installed by dealer under warranty with similar problems before. Took to dealer and they could not determine if transmission was slipping or engine miss firing, but no code on miss firing engine. Slipping or hesitating of transmission is more likely but can not determine since does not act the same consistently. Steering noise started in the winter approximately november 2013, but off and on since; steering seems a little stiff but not failing yet like so many other complaints I have read about here. I was charged $342.81 for dirty throttle body and oil in the air dust tube which might cause misfire, they cleaned and replaced bank 2 value cover and cleared codes, performed idle lean reset. This did not fix problem on 05/19/2014. I returned on 06/10/14 and left car till 06/11/14 the dealer let me use a loaner over night. The dealer said stumble/misfire at times was not acting up enough to diagnose. I had the cars automatic transmission flush service on 02/26/14 and there was no problem at that time. In the course of owning this vehicle I had 3 coils replaced with problems starting 01/05/10 one coil, second coil on 08/11/10. Third coil shortly thereafter, this is after complaining since 12/02/2009 about engine shudder. The misfire/stumble is still happening about 40 MPH and sometimes around 20mph if you are slow going but not on a pull or accelerating. We love the car, but the problems are getting expensive and the worry of what else can go wrong is stressful. I did not mention the warranty repairs of water pump going out front motor mount failure, shift lever, airbags, seat belts, left out remote mirror failure, engine and transmission code updates. Dealer seem ok, so gm can not fix or will not due to cost.

Filed Mar 19, 2014 · Electrical · 79,000 miles · MD

I would not recommend this vehicle, it is pretty expensive for all the problems we've had. It has already been recalled twice for two different problems. In december it started misfiring, hesitating and becoming sluggish. After taking it to three different repair facilities they figured out the pistons were misfiring and three ignition coils(all on the same side) had to be replaced. While I realize the time frame of the warranty has passed, we were under the mileage for warranty coverage. I guess automobile makers penalize you for not putting a lot of miles on your car. Now, just three months later with only a few more thousand miles added - out of the blue I'm driving down the road and numerous warning lights come on. Park assist goes off, all wheel drive goes off, ABS warning light, and brake warning light all come on at the same time. When I called the dealer I was told to turn the car off and then back on and it should be fine - it wasn't. Then I was told it was ok to drive it! If so, then why all the warning lights? Too many things have gone wrong, for a price tag of over $50,000.00. We have always had the suggested maintenance performed, I feel this vehicle is not made well and is not worth the price tag, but more importantly - how safe is it???

Filed Mar 17, 2014 · Engine · 117,000 miles · PA

Purchased 2009 buick enclave new in april 2009. Taking it to the dealer for the third time in a week for the steady malfunction indicator light (aka check engine light). First visit (wednesday) revealed pistons misfiring. Approximate cost - $400. Second visit (friday) did not reveal anything. Dealer stated that when the mil was 'fixed' on tuesday, it probably triggered something to make the mil go off for no reason. Or, it could be a real problem that will only be revealed after the mil is reset. If the mil does come back on, it's probably the catalytic converter - which will cost almost $600 for the part and $400 plus for the labor. Mil came back on friday evening. Third visit is tomorrow and I shudder to think what will happen. After researching online, it appears many enclave owners have experienced problems with the mil. Very costly problems. Have had the same problems that others have experienced - timing change, batter replaced at an unusually short period of time after purchasing vehicle, power steering, memory seat motor blew, peeling paint from A/C and radio buttons and other buttons, etc. Really enjoyed the enclave but starting to regret this purchase as it is only 5 years old. Some of these problems should have been recalls and no cost to consumer.

Filed Dec 11, 2013 · Engine · 85,000 miles · NY

Engine coil misfires resulting in hesitation when accelerating.

Filed Mar 21, 2013 · Engine, Suspension · 55,000 miles · WV

Vehicle transmission either, slips, doesn't shift or shifts erratically. The engine misfires at times. Steering issues. Navigation system issues, strut failure, heated seat failure. *tr ## VIN failed ##