When I reattached a flex gas line to my range, the gas shoots straight up out of the orifices, but doesn't disburse through the fixture intended to spread the flames out over the burner area. The electronic igniters spark, but they don't ignite the gas. When turned from "ignite" to "High", the flame (ignited manually) essentially blows itself out because it's shooting out so fast. Any ideas what I'm doing wrong and how I get the gas to spread through the fixture?