2011 GMC Yukon XL Consumer Discussions

GMC Yukon Reduced Engine Power message

• 2007 GMC Yukon XL -Reduced Engine Power

  Written by: donewithgms on Apr 11, 2011 12:50:47 PM

  Hello, I have had this same problem. My stabilitrak and traction control lights went off followed by the dimished engine power. Took it to the dealer and they said that it needed a throttle body and throttle body connector, BUT that the part was on national backorder...could be weeks or a month. (that was 02/2011). Finally got it replaced on April 4th..cost $500. My Yukon XL has 124K miles on it, ... Read More