Kenmore oven stopped working correctly some time ago. Ignitor glows, but gas doesn't flow out quickly enough to ignite, I start to smell gas, but can't hear the flow like I should be able to. If I tap on the gas safety valve, it will flow fine, ignite, get up to temp then shut down, but as soon as the temp goes down, the ignitor comes back on to re-heat, and I need to tap the valve again. I did order a new gas safety valve already, but was curious if there is anything else it could be. Probably should have asked here before buying the valve, but seems to me that is the troublesome part.