2004 Trailblazer, 6 cyl. Had garage R&R engine, about 400 miles on engine. Now have strong smell of gas inside car and in engine bay. They said not their problem. Can't see any leak. I wanted to get to fuel rail to check for leaks. Can the plastic housing around intake be removed or must I pull complete intake?. Thanks - - - Updated - - - Figured it out-- Not really hard to do. I just removed the intake turned fuel pump on and clearly saw 1 injector had a leak. Pulled fuel rail and replaced all O rings. An easy 1 hr job if you know what you are looking for.