Electrical issue

[Saltshaker787]

hello eveyone my 90 suburban has lost power to windows(i did the lmc power window conversion) Also i have no blower fan and ac compressors wont come on...all this happened out of the blue ive checked every fuse i can think of....high speed relay also is dead...any help would be highly appreciated...thanks

 

[Saltshaker787]

Ac was blowing cold before all of this ...(two hr road trip)

 

[Snoots]

Start checking all of your grounds.

 

[WP29P4A]

The first thing I would check would be the fusible links, grounds would be a close second.