This morning , I went to start my truck (-17 Celsius) and I noticed the block heater plug had been disconnected. Kid must tripped over it or something. Anyways , it took a while for the WTS light to go out as per normal in the cold . Now after driving for a hour and the weather warmed up to almost melting , I stopped and was out of the truck for a 45 mins or so. I turned the key and it took approx 30 seconds for the light to go out . Drove home another hour, pulled into the driveway and parked. Waited 5 mins and turned the key . It took 28 second for the WTS light to go out . This is the 1st time in 10 years owning th3 truck it’s done something like this . Only other thing is it seams my battery voltage gauge seems like it’s charging a bit more stronger than before . ( unless it’s just cold out and working harder ) Any ideas where to start ? Thanks

Thanks for that read Katoom . This morning was above freezing and I had it plugged in all night . Still 30 seconds for the light to turn off when usually be less than 5 . I did some reading of old posts and read maybe the intake air temp sensor could be dirty or damaged . What’s your thoughts on that ?

Truck at full temperature , cold , plugged in.....it’s still taking 30 seconds . When plugged in overnight it was usually less than 5 seconds . It starts like it’s warm , but long wait on the light. When I first noticed it , my charging gauge was holding around 10 for the first 10 mins ( or so) of driving then it climbed up to the normal 14 ish .