Service Engine Light On Problems of GMC Suburban

The contact owns a 2003 GMC Suburban. The contact stated that he purchased his vehicle brand new and has currently spent over $5,000 in repairs. He has been to the dealer four different times concerning the steering wheel vibrating, shaking, and rocking while driving the vehicle. Each time he went to the dealer for the steering failure, they always found another failure to report. The dealer stated that the motor injection system was burned out and caused the steering failure. The contact was informed that the vehicle meets the manufacturer's specifications and that no other assistance could be provided. He stated that the steering wheel never worked and he has all of the repair receipts. Currently, the service engine soon light illuminates and the engine is making a loud noise, vibrating, and misfiring. He was informed that the repair would cost over $2,000. The speed was unknown. The current mileage was 39,870 and failure mileage was 30,000.

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2000 Suburban's malfunctioning computer warning lights were replaced per recall. The check engine light illuminated and the vehicle was taken to the dealer. Consumer was told that he computer need to be replaced. ***** the dealer informed the consumer that the necessary parts to perform the recall would not be available until November 2005. In November 2005 the vehicle was taken to the dealer and they claimed that they fixed the vehicle. . After recall repairs the service engine light illuminated. The vehicle was taken back to the dealer in early February 2006 and the technician indicated that the computer had to be replaced. The consumer agreed to the repair but after the vehicle was picked up from being repaired the engine light illuminated again.

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Vehicle engine will intermittently stall or cut out at highway speeds. This condition occurs approximately once or twice a month under varied driving conditions. The vehicle will restart immediately after stalling. Several times when this has occurred, the service engine light will come on, but it will turn off after 20-30 miles of driving. This has been occurring for over a year now, I have taken the vehicle to three gm dealerships, and they claim they cannot replicate the problem. They have replaced the fuel pump at my expense, and the catalytic converter under warranty. I have also taken the vehicle to two independent shops for the same problem and they have also not been able to replicate the problem or offer a solution, other than replacing the basic components (spark plugs , plug wires, fule filter etc), which I have had done. . This is an extremely dangerous problem, primarily because when the engine stalls, the power brakes and steering also fail. I live in a mountainous region of virginia and have had this happen while driving mountain switchbacks. This vehicle weighs almost six thousand pounds, and a loss of power brakes and steering while descending steep mountain grades with sharp curves creates an extremely dangerous and life threatening situation. Thank you for your assistance.

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