I have a 1984 chevy sportvan ---i have all lights except taillights and dashlights-i putin shop they replaced 2 fuses and bulb but when i got home and turned on headlights switch dashlights went out a
This problem sounds like there is a short, first locate the fuses and replace them if they are blown, most likely they will be.
You will need to do some checking, we know the short is in the tail light dash light area which is considered the park lights,
This may be due to a bad wire or switch, if you have a trailer hitch on this van i would start there,
Locate the connector for the trailer lights, on the rear of the van , follow the wiring and look for bad wiring or wiring rubbing through near metal area,
A good test would be to install new fuses and turn lights on as you have someone keep an eye on them to see when they go out, turn van on and lights also, see if fuse pops , if it does then locate the wiring for rear lights at rear of the van behind rear bumper area you will see a connector that connects the wiring for rear lights, remove the connector , this will stop all power to rear lights and will be a test to see if the short is in the rear tail lights, with connector removed install new fuses and turn lights on, if fuse does not blow then now we know short is in rear from that point back, check wiring and sockets very closely, make sure correct bulbs are installed.
this is where i would start, let me know the results of this test i we will go from there, good day
on Oct 06, 2012