Charcoalyukon04
Member
2004 yukon 5.3L 131,000 miles
A couple months ago I'd have to floor or pump the gas to start the truck. It would puff out a huge blue cloud that reeks like raw fuel. When the truck was warm, it would start fine, no smoke. While idling and warm, the exhaust smelled like rotten eggs. It's got a new plugs and wires as of this weekend.
Yesterday morning the issues started again. Only change is while running, the rotten eggs smell is gone. But it's still puffing blue gas smelling smoke on first start and having to be floored or pumped to start.
Ideas???
A couple months ago I'd have to floor or pump the gas to start the truck. It would puff out a huge blue cloud that reeks like raw fuel. When the truck was warm, it would start fine, no smoke. While idling and warm, the exhaust smelled like rotten eggs. It's got a new plugs and wires as of this weekend.
Yesterday morning the issues started again. Only change is while running, the rotten eggs smell is gone. But it's still puffing blue gas smelling smoke on first start and having to be floored or pumped to start.
Ideas???