One problem related to o2 sensor has been reported for the 2000 GMC Yukon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 GMC Yukon based on all problems reported for the 2000 Yukon.
I was driving north on 85 at 70 miles an hour and my vehicle decided to drop down to 20. I have looked up information on issues this truck has had and 1 of them is registered under NHTSA id # 100032435 / pip-4695. Loss of power hesitates on acceleration. 4. 3, 4. 8, 5. 3, 5. 7 and 6. 0 engines coupled with the 4l60e or 4l65e may experience a condition of hesitates, misses or loss of power under acceleration. The vehicle may operate as if it is in reduced power mode. I have purchased an air mass flow sensor, throttle body sensor, all 4 O2 sensors, and a coolant sensor. My truck is still not running at full capacity. I need some information on this and some help fixing my vehicle.