losing power (buddy needs urgent help) *RESOLVED*

[NEK5]

My buddy's having some weird electrical problems with his 90 blazer. He checked all his ground straps and they're good. The problem is he's losing power at the junction on the firewall. He said when you turn the key he loses power there, but if he shuts it of it comes back about 30 seconds later. That's how he describes it to me

Any ideas?

I'll get more info if i can

 

[NEK5]

they put a test light on that block, and when they turn the key on it goes out, then when they turn the key off it lights back up within 30 seconds

they get constant power (ie head lights, etc) but no ignition or accessory

 

[NEK5]

resolved! he's not sure what it was, but they tightened up all the wires at the starter and it fixed it

 

[Jason4x4]

loose nut on solenoid, means loose connection, junction block gets power from solenoid.