Browsing Reddit and found...
"Customer seriously asked if we could just replace the relay"
https://www.reddit.com/r/Justrolled...mer_seriously_asked_if_we_could_just_replace/
GMT360/305/370 with a borked fuse box due to solid state relay meltdown. Usually caused by an aftermarket replacement. They can't stand up to the task that an OEM ACDelco relay can. Hence, boys and girls, why I recommend replacing the HDM/Rad Fan relays with ACDelco only. First time I've actually seen a picture of a complete failure but knew the cause right away.
"Customer seriously asked if we could just replace the relay"
https://www.reddit.com/r/Justrolled...mer_seriously_asked_if_we_could_just_replace/
GMT360/305/370 with a borked fuse box due to solid state relay meltdown. Usually caused by an aftermarket replacement. They can't stand up to the task that an OEM ACDelco relay can. Hence, boys and girls, why I recommend replacing the HDM/Rad Fan relays with ACDelco only. First time I've actually seen a picture of a complete failure but knew the cause right away.