Reverse light dont work

[1978Blazerk5]

the reverse lights on my 78 blazer dont work.once in a while they will,or they will go on for about 5 seconds and shut off.but most of the time they dont even go on.How do I fix this?


Thanks

 

[1978Blazerk5]

Anyone?

 

[chevy wrangler]

probly loose ground cable, follow your wiring harness and check the grounds

 

[xpndbl3]

i think there's a way to adjust the neutral safety switch to line up with reverse on it to make the lights come on when the shifter is placed in reverse, but I never figured it out either and my lights come on right when i pull it out of reverse, then go off when i'm actually in reverse