My 2008 Chevy Tahoe has this recurring issue where, in stop and go traffic, it shakes as if it wants to stall out. The stabilitrak service light will come on doesnâ€™t go off until I significantly increase speed/accelerate. I can sometimes smell fuel inside the vehicle during these times. I do not have this issue when on the interstate, traveling at a high rate of speed for long distances. Anyone experienced this?