Weird / Intermittent Electrical Issues? Check your under-hood fuse and relay center!

[SinisterZ71]

A friend's 2014 Silverado K1500 L83 (with 82k miles on it) would experience an intermittent no-start / no fuel pump run when opening the driver's door issue.  Would start if the fuel pump relay in the under-hood fuse and relay center was wiggled.  Replaced the under-hood fuse and relay center with a new GM part and that fixed the issue.  We wanted to know what was wrong with the original fuse and relay center, so we took it apart.  Attached are pictures of what we found.

 

 

 

I've got a 2018 Silverado K1500 with 50k miles and I'm thinking about taking my fuse and relay center apart to see how bad it is.  I'm wondering if I should coat both sides of the circuit board with some of that red battery terminal corrosion protectant spray...

 

Edited February 23, 2024 by SinisterZ71

[m3n00b]

That's really interesting.  Thanks for sharing!