Steering Noise problems of the 2009 Buick Enclave

Tl-the contact owns a 2009 Buick Enclave. The contact stated that when the steering wheel was turned to the left or right, there was an abnormal noise coming from the steering column. The vehicle was taken to the dealer where it diagnosed that the rack and pinion failed and needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was 67,000. The VIN was unavailable. Ss.

The contact owns a 2009 Buick Enclave. While driving approximately 20 mph, there was an abnormal noise coming from the steering wheel. The failure recurred on numerous occasions. The vehicle was taken to a dealer where it was diagnosed that the steering pump needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 90,000.

The vehicle (2009 Buick Enclave) was being serviced at a gm dealer for investigation of a noise we have heard while driving the car. The mechanics determined that the noise was due to the steering mechanism which was beginning to fail and needed to be replaced to avoid potential loss of steering.

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.