D Deadlywolf72 Newbie Joined Sep 8, 2019 Messages 1 Points 1 Location Upstate NY Sep 8, 2019 #1 Make GMC Model 3500 Year 1989 Miles ? Engine 454 I have a 89 GMC 3500 with a 454 TBI. Runs ok when cold and as soon as it warms up or running in warm weather floods out. You can smell the fuel. Any ideas what could be causing it?