The broiler would not lite at all and the oven would lite occasionally but would not maintain temperature.

I replaced the igniter in both the oven and the broiler. This was my first time ever working on a range.
I removed the oven door for easy access. To replace the oven igniter, I took the bottom floor out of the oven. The igniter is readily visible at the rear of the burner. I removed the two screws holding the igniter with a socket wrench. The screws were somewhat stubborn but yielded rather quickly. I gently pulled the two wires attached to the igniter from the back of the oven until the connector was exposed. I disconnected the old igniter and connected the new one. Then I simply reversed the the procedure, tucking the connector and wire back through the hole it came from and re - installed the two screws in the bracket. The insulation provided with the kit was used to plug the hole in the back of the oven.

To replace the broiler igniter, I essentially followed the same procedure. However, I chose not to remove the broiler baffle. This made it more difficult to both remove and re-install the two screws holding the ignitor. Otherwise, everything else went smoothly. If I had to do it again, I'd remove the baffle.