Dash lights not working? 59 Gmc

[SCHRUMGMC]

I have replaced fuses, Bulbs.. The Gauges lights work..the indicator lights don't work, the right one flashes when I push the Turn signal lever down... Im lost here. There is a Fuse diagram under the dash where things are Grounded, could paint mess up a Ground? Where are the Grounds for this? Bad indicator housing maybe?

Could it be a bad printed circuit?

Gauges all work (I think)

Even the Dome light doesn't work..replaced that Bulb

I know some of you will say, Wiring diagram well I can't read them

[lowrodderchev]

my blazer did that when I first got it and it was the turn signal switch had to hold it down on both left and right for it to work

[SCHRUMGMC]

So basically get a new Turn signal switch? I can hear it clicking though? On both sides

I grounded the Bar on the bed that holds the wood and the Frame, well almost got it done I then got distracted

[lowrodderchev]

maybe run a tester to the wire to see if your getting a current. I'm all about trial and error test every wire from the source and down if its clicking it could be a ground but are your brake lights working they run off a ground as well I believe

[SCHRUMGMC]

If its clicking, then the Switch is working I assume.

Dome light doesn't work

Where is all of this grounded?

[lowrodderchev]

dome light is grounded by housing as well as the tail lights again I would run a test light to make sure its getting power p.s. clicking aint always good my knee clicks and doc said that's very bad

[SCHRUMGMC]

Well I'll just buy a new Headlight switch then.I am not sure what to do

[SCHRUMGMC]

Well, I'll just replace both switches..

[Daze57]

you should try testing as mentioned above - it might be something v simple - if you have exhausted all you attempts at finding the problem them you might think about getting new parts , just my 02 cents worth

[SCHRUMGMC]

All the gauges work fine

Oil Reads 30
Temp Gauge, well its running over the line a hair? could it be because of the new Temp sending unit?

It runs but I can literally adjust the timing while its running..I need to get a rachet to it and tighten it down real good

[lowrodderchev]

cool happy for ya did you take it to a mechanic?

[SCHRUMGMC]

Nope....The Distributor is still loose..I need to get a ratchet to tighten it down

[OrrieG]

Originally Posted by lowrodderchev

dome light is grounded by housing as well as the tail lights again I would run a test light to make sure its getting power p.s. clicking aint always good my knee clicks and doc said that's very bad

Nope, the lamp and fitting on the dome are two prong so hot comes in and ground goes back out to the switch. Look at the attached diagram, dome ground is at the top, hot at the bottom. Purpose is so it can have variable level along with the instrument lights thru the coil resistor.

Also I do not have a factory turn signal wiring diagram, so no help there, but you should be able to test for inputs and output to see if it is the switch or wiring to the various lamps and indicators.

[SCHRUMGMC]

Is my oil pressure good?
I bought a new Speedometer cable

Its a SOB to get the old one out of the grommet ughhh

[OrrieG]

On most chevy engines the oil gauge works like a tach, high when cold, low at idle after getting heated up, moving to middle off idle. 30# is fine, its not a race engine designed for higher pressure. Best way to calibrate the temp gauge is to bring it up to full temp and measure the water temp in the radiator with the thermostat open. Rad will read a little cooler than the head sensor location.

[SCHRUMGMC]

Well I cleaned the grounds....checked fuses...hell the indicator lights still don't work


It couldn't be the Lens housing could it?

The Speedometer cable won't come undone where the Transmission is? Its pissing me off, I've sprayed WD-40 on it...Still nothing, I've tried pliers

[OrrieG]

Here is another current thread on turn signals not working
http://67-72chevytrucks.com/vboard/s...d.php?t=626977

and here is a diagram of the inside working on the stock switch, look at the thread above for my commentary.

[lowrodderchev]

yeah thanx SCHRUMGMC you gave me some of your wiring gremlins LOL

[SCHRUMGMC]

Tough **** LOW !!!!!! Lol

I have a guy sending me a Tranny cover here soon, so it'll be great to fill that hole in the floor