Victor H Slippery Rock , PA November 23, 2014 Appliance: Maytag 48" Gas Built-In Downdraft Cooktop JGD8348CDP16 Gas would not shut off on jenn aire cooktop Removed burners, grates, removed cook top,took screws out from raised trim and wells for burners. Removed electric connection for burner igniters and took gas connection off of valve that goes to burners. Took out screw that holds in gas valve in gas manifold. Replaced gas connections to burners on new valves, installed new valves and trim . Read More... 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 2+ hours Tools: Nut Drivers, Screwdrivers, Socket Set