How long have you owned the truck? If it is new to you my guess would be is that the previous owner had a turbo timer put on the truck. It will keep the truck running until your EGT get down to a preset range before it shuts the truck off.
its a buddies truck, he just got it shipped from down in the states. thank you for the help, it must be a turbo timer. can a turbo timer be put in without putting an aftermarket alarm on?, cause i know on my ex, my aftermarket alarm supports it.
I do believe they make some independant turbo timers although I could not tell you who makes them. I know alot of guys on here use the Edge CTS has a turbo timer option or an aftermarket security system for their turbo timer.
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