Monday, April 19th, 2010 AT 11:44 AM
I have a 1999 Suburban w/ 138000. The last 2 weeks it has started to bog down as it is shifting as if the fuel filter is plugged. I changed th fuel filter a few days ago and the fuel pump was changed a year ago. I thought maybe some bad gas, si I have ran premium gas to burn out the old and it continues.
