2005 Hyundai Sonata Q&A

2005 Hyundai Sonata Question: it looks like i'm lossing about 100 miles out of a full tank of gas

i just got a new belt, water pump and changed the spark plugs -
Answer 1
no codes or check engine light? maybe you have evap system problem or as simple as put a new gas cap -
Comment 1
no check engine light,,,, new gas cap???? i also just got a new fuel pump with the other parts -