This is an intermittent problem, but sometimes if I start the truck up, the WTS light will stay lit. It did it today on the way back from lunch, and I let it go to see how long it would stay on. Well after about 5 minutes I shut the truck off at a light and fired it back up, light went away. This happens about every 3 months or so, and has done this before and after I got my Predator. Could this be a sign my glow plug relay is going south, or some other component for that matter?

Terry

 

It probably has something to do with your glow plug relay or the glow plugs in general. That same thing happened to my X the morning after I bought it. Even then I turned it off and fired it back up again, the SES light stayed on. When I took it in, they said the glow plug relay had gone south. It ran fine, but, I didn't want to take any chances. If and when it happens again, I'd detune and take it in.