Question about 1999 GMC Suburban
I have a 99 GMC Suburban c1500 5.7 and last June it had a problem on a long trip while pulling a trailer in which it would begin to loose power and would not accelerate. I took it too the shop and they said it was the Oxygen Sensors Bank one and two and that my Catylitic converters needed to be replaced and then replace the Oxygen Sensors, it seemed to fix the problem for a while, now less than a year later I have the same code and problem. Drives fine around town, just when taking long trips and sometimes pulling a trailer, any help would be appreciated, thanks
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Posted on Jan 02, 2017
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