sometimes at night when i turn on my head lights,
my interior dash lights become VERY VERY dim, hardly visible,and then sometimes it's normal

but my tailight and headlights and boost gauge, other thigns are fine
any cure for that???

what to look after??

 

My guess would be either a bad headlight cluster switch or a bad ground to the body.

Irv, Keith's dad

 

I agree, bad ground connection would be thr first thing I would look at.

I am assuming that the dash lights work fine with just the parking lights on?