Tl* the contact owns a 2009 gmc yukon. while driving, the accelerator pedal was depressed, but the vehicle hesitated and failed to accelerate. the local dealer was not contacted. the vehicle was not diagnosed or repaired. the manufacturer was notified and did not assist. the failure mileage was 145,000.
Tl*the contact owns a 2009 gmc yukon. while the contact was driving approximately between 30-40 mph, the reduce engine power warning message displayed on the instrument panel. the stabilitrak warning light also illuminated. the engine completely stalled and restarted. the vehicle resumed with slight engine power at the speed of 10 mph. the failure occurred four times and it was taken to an authorized dealer for diagnostic testing. the technician stated poor quality of fuel was dispensed in the fuel tank. the computer software was updated; the mass air flow sensor and throttle body unit were cleaned. the failure recurred two weeks after the repair. the vehicle was taken back to the dealer where the throttle body was replaced. the failure mileage was approximately mileage was 21,910. updated 07/08/11 *bf updated 07/20/11