Blinkers Failing but Relay Okay Options

[mjrrti]

Hey guys,

I have been following this with great interest because my car has the Tach indicator symptoms you describe. Mine is a 74 but it has the 4 pin flasher. The left side would sometimes flash for several flashes but would stop even though the signals on the car kept working. The right would flash only 1 or 2 times and do the same thing. Today I got bulbs for the front that are a few more watts-28.5 vs 26 for regular stock incandescent and that appeared to fix the left but did nothing for the right. I am sure my bulbs were very old so maybe not pulling the 26 that they should. I didn’t want to overdo it so I only did the fronts but looking now I don’t see bulbs with higher watts available for the 1156 rear anyway. I put 2357 Sylvania Silverstar in the front and they are a touch brighter. Then I opened up the Hella relay to look for damage but didn’t see anything obvious. Since I had it apart anyway I sprayed the crap out of it with WD40 to see if that might help. I’m not sure if it was the WD or the bulbs or a combo but the left appears to work now. Then I wired a temporary 1156 into the right as a test and with that extra wattage of a third bulb the right then worked as it should. I had already bought a URO flasher that is supposed to be a direct replacement for the Hella and with that the signals worked great but no indicators. So I held a small screwdriver from pin 49a to the c pin today and the indicators work that way but when you cancel the signal the relay continues to click with the pins no longer connected and no lights at all until you shut off the key. I can wire lights and stereos and most car accessories but this makes zero sense to me. I am thinking the correct relay would solve all the issues. I did find this on eBay and I am the worst of anybody at reading electric diagrams but it does look to me that the K pin is at least connected to something in the relay. I have not tried the EP36 yet. Any thoughts or help would be great. Sorry for the rambling post. Thanks

[Spoke]

Hey guys,

I have been following this with great interest because my car has the Tach indicator symptoms you describe. Mine is a 74 but it has the 4 pin flasher. The left side would sometimes flash for several flashes but would stop even though the signals on the car kept working. The right would flash only 1 or 2 times and do the same thing.

@mjrrti

What you are seeing with the tach indicator is a consequence of the secondary coil to drive K1 losing its efficiency over the years. So putting a higher power bulb seems to make K1 work better.

You might be better off swapping your flasher for a EP26 LED-compatible flasher with pin C2 modified for the single L/R tach indicator. EP26 works with LEDs as well as bulbs. I resell modified EP26 for the single L/R tach indicators.

[East coaster]

Can’t believe no one recommended checking the blinker fluid level (IMG:style_emoticons/default/smile.gif)