wiring help

Hey,

Just putting my dash back together and have developed a couple problems. When I turn on my parking lights my left dash blinker lights up but not the parking light. If I turn on the turn signal it works fine. Any suggestions? Also none of the lights behind the speedo are working (new Bulbs).

Thanks

It's possible that you got the park and signal wire switched. Dash blinker should not be on at all. That's my guess is you have two wires in the dash coming from there to the left bulb, and the bullet connectors got switched. So which two wire colors go to your park lamp? Trace those back up under the dash.

BTW, the signal light may appear to work okay, but it's probably running to the park lamp filament in the bulb... probably less intense than the other bulb. What's it look like with your headlights and turn signal on?

I didn't change of the wiring so that is what has me baffled. I don't beleive I was having this problem before.

maybe a crack developed in the line going to the front left, and it's shorting through the signal circuit. Is the wire brittle? Maybe if so, some tape over any potential shorts could do it. Still, there's a reason why your signal indicator comes on in park...

Gonna ask a dumb question... is it possible you put the gauge illumination bulb in the turn signal indicator location, and except for that everything is okay? My oil light flashed when I first reassembled my gauge cluster, if you know what I mean.

nope, I have the right bulb in the right location. Like I said it flashes when I put the turn signal on.

The only thing I have done is that I did remove the old Trailer brake control from under the dash which left a pink and I think red wire behind which are currently just taped off.

You also said that the indicator comes on when you turn on the park lights.

Other possibility is to inspect the bulbs and sockets for the side that the indicator comes on in Park mode... for clean contacts, etc.

Trailer wiring... probably tied in with the brake circuit, which probably piggybacks on the turn signal circuit... meaning the brake light uses the turn signal wiring to activate the bright filament in the rear bulbs... double check that the trailer wiring is properly isolated. Other than that, I'm stumped. that's why everybody loves electrical gremlins, right? Good luck,

donivan65 wrote:Take the lens off the turn signal light and run a ground wire to the bulb base and see if it comes on,,,,,,,,,do it to the dash 1st,,,,,,,,

Hey Don, do you mean run a ground to the bulb base in the dash first? I did just paint my dash and instrument panel, do you think it may just not be grounding properly?

When I remove the lens cover from the parking light and ground it to the socket the light turns on.

I can not get any of the lights behind the speedo to light up. Tried pulling the sockets and grounding them. Did the same thing with the blinker lights and they light up. Is there a specific fuse for the speedo lights?

Also since the parking light lights up when grounded does this mean I need to adjust the light fixture to make it ground better?

Sounds like grounding issues, I had the same problem with my 69 after tear everything a part for painting. I had 3-4 issues with grounds before I got everything working again

You can sometimes have a back feed through another device if you have a bad ground. I've also had slightly corroded connections that allowed enough power though to show voltage, but not enough to light things up.

Just one of the reasons I love my test light

The parking light fixture is new, as of last year. there are two wires that attach to the fixture, is one a ground? Or is the fixture grounded by the bolts holding it to the body? Could the problem be that the socket in the dash for the blinker light is not grounding properly which is causing the parking light not to work?

When I grounded the parking light socket the parking light lit up and the dash light went out.

You did some work on the parking light areas didnt you? I bet its just not grounded at the fixture. might have to make sure the surface where the nuts are on the back is free of paint or whatever is there. One wire is the parking light the other the turn signal . As you know the dash is just held in by those 2 posts on the bottom and those clips on top, maybe it grounds thru the clips?? I'm not sure if there is a jumper ground in the harness to help that out.

Ah Ha! Filed the bolt holes that the Parking light fixture attaches to and viola!!! it works again!! I guess it just was not grounding at the fixture.

Tomorrow I wil start with the speedo lights.

Right !! Screws, got them mixed up with the guides, I need more memory pills again...

How can I check to see if the Temp/Oil and Generator warning lights work?

wacko, I'm glad you're making progress! Electrical work actually feels quite rewarding when stuff actually starts working, huh?! Cheers!

Ok got 2 of the three speedo lights working. I don't seem to have power at the third outlet.

I also only seem to have an outlet for 1 of the 2 warning lights. I have power to it but the outlet came apart. The brass knob on the end of the one wire came off. Can I purchase a new brass knob and crimp it to the wire or do I replace the whole outlet?

And finally I do have the three guages mounted just below the dash (amp, oil temp, oil pressure). All three light up, but none of them seem to be working. Any tips on where to start? Also, are these aftermarket? and if so could this be why I am missing one of the warning light outlets?

Thanks Again