Erik N

Knowing the experience here, I bet someone knows the exact problem.

Sometimes the directionals work, sometimes they don't. Both sides exhibit about the same behavior, and it gets a little better as the whole car heats up. When the blinkers act normally the relay makes the proper tempo "ta-tink, ta-tink" noise. The times the blinkers don't work there is either a rapid "tink-tink-tink" sound or silence.
Grounds are cleaned, bulbs OK. Column stalk switch appears to work OK. Fuses looks good.

I'm thinking relay.

Go-carter

tink-tink-tink means the relay thinks a bulb is burnt. Or multiple. Perhaps there is bad connection with the pod? Not sure, but I think the function of the relay goes trough the blinker lamp inside the dash.(someone will probably correct me here)

Ducman82

or a bad multi-function switch....

ROG100

Just did this today on my 78 - was the bulbs. They all worked but one was different.
Put in new ones and perfect.
Use 7506 Osram or similar - we sell them for $1.50 each.

SQLGuy

I would guess bad contact between bulb and socket to be the most likely cause. I'd try running the turn signal with the bulbs out of the lenses, and see whether wiggling them causes/cures the problem.

Erik N

I ordered new bulbs from Roger. I'll change them out this weekend and post the results. Thanks guys!

Tom in Austin

Right behind you Erik, my turn signals work in both directions but right blinks faster than left ...

Ninespub

Could it be that you were out of blinker oil? Sorry, I just had to go there.......nobody else did. Tadda tink, tadda tink!

tlsmith1999

On my 78 cleaning the connections where the wires connect to the back of the lights fixed this for me. Had to remove the wheel liners to get to them. The connectors are female spades with a rubber coating. The coating was falling apart and the spades were corroded. I replaced it with shrink wrap.

ODSharkBytes

Could this be a low blinker fluid issue I keep reading about?

Ninespub

ODsharkBytes: You're a little late on the draw there pardner. Read post #8.

Erik N

OK problem is still not fixed. I replaced all bulbs w/ new from Roger, and checked the bulb base connections. All look good.

The relay still makes noise in either direction, which leads me to believe it is OK. Just sometimes the signals (mostly RH) won't fire, along w/ the dash indicator. When the side doesn't light, I can tell (by the dash warning lights increased dimming w/ car not running) that there is an increased draw on the circuit.

It still seems to work better the warmer the car gets. This Saturday will be a track day for me... I will get her nice and super-hot and see if that makes a great difference. The old Italian tune up attempt! Haha

Which groundpoint do you think is the most relevant here?

Mrmerlin

do the grounds above the Ce panel and the ones along the front and sides of the engine compartment

Leon Speed

Clean the fuse connections and replace the fuse.

9two8

For what it,s worth I had similar problems a few years back on mine , it turned out to be the printed circuit board on the back of the instruments had developed stress cracks, the particular circuit that supplied the indicators.

Ken
80 928 S
5 Speed

UK