The reason that you may not find a listing, and this isn't gospel, but a mechanic i know has said that in some cases there aren't any glow plugs fitted to some diesel engines, don't know if he was refering to my sedona or diesels in general, but i had the coil light on mine flashing, but it actually turned out to be a short circuit in the area of my turbo intercooler intake. apparently, the air can be heated of need be. Like i said, don't take this as gospel, i'm not a hundred percent sure on info. But hope it helps.