Been sick all week so the truck hasn't run in about 4 days. Cold morning but not overly cold, -8'C/18'F.

Started the truck, no issues, except the Check Engine light came on.

Grabbed my cheap ODBII and plugged it in, and tried 5 apps and all say 0 error codes detected. I had this once with an Impala on a VERY cold morning, way colder than today. Thought maybe the same deal... cold day, triggered the light. Drove around the block and came home again. Engine when accelerating has an almost dry scrapping sound to it... but hard to tell if just normal or not. Truck has 390,000km on it and usually first thing in the morning it's a bit louder and makes noises when warming up and fluids get flowing. Half hour later it's running fine.

Any ideas? Kinda strange to get an error light with no error. Current, pending or stored.

Held the phone underneath and pressed the gas with my hand... noise coming from the front somewhere.
https://drive.google.com/open?id=10o...V6K3n4PC8eeo4G

 

Checked the oil?

 

Yup... checked the oil and gas cap soon as I saw the light.

 

That noise kinda sounds like torque coverter bolts rubbing on inspection cover. That wouldnt activate check engine light I dont believe tho

 

Maybe 2 separate issues... Though if what you said is true, is that an easy fix? I'm kinda at that point where the next big fix for this truck may be the last.