Turn signal problem

I guess that this ones got everyone stumped too! SoBill suggests that I give the turn switch a good cleaning as the grease may have dried out and hardened over the years causing resistance that keep the flasher from functioning properly. We're working on it this weekend, I'll post our findings.

Just a thought, if your sure the wiring is right and the bulbs actually do work manually. The flasher works off of amperage, a lot of time the hazard and turn signal flashers have different amp ratings. Make sure you are using the right one for the circuit. Also, if any other 'accessory' might have been added to the circuit before the flasher?

I'm courious what you find....I will be digging into my light circuits soon.

Angelo

Thanks Angelo. A number of flasher units have been tried with that thought in mind. All work in my car when swapped out, so I would think that we've eliminated the flasher unit itself as the culprit. We found other wiring on the flasher circuit and eliminated them also. The process of elimination continues and hopefully will end this weekend with the cleaning of the switch stalk itself.

Yup, I'm betting the turn sig switch might be making poor connection. Since all four corners have the same results. Can you get to the leads and make a quick jump cable to test the circuit at the connector where it goes up into the steering column, bypassing the switch?

Angelo

That's what we plan to do this weekend. I have jumped it at the hazard switch while we were testing that last week and I got them to work. Through the process of elimination and the wisdom of SoBill Taylor, we are down to the switch itself. I wasn't aware that resistance from the switch would allow the signals to light up but not flash. I never stop learning here! I'll post my findings. Hopefully this is the problem.

PROBLEM SOLVED! I dropped the steering column and there was the cause staring me right in the face. The previous owner of the car had bridged a powered wire from the ignition switch to the pink/black power wire on the hazard switch. I have no idea why he did the as the pink and black wire already was a 12v source. I guess the added amps prevented the flasher from building up enough resistance to blink. This has been one of a number of "Mickey Mouse" electrical "fixes" done prior to my friend buying the car. We discovered the electric fuel pump wired into the marker lighting system for power. Each time you turned on the turn signals, the pump speed would change. We've had to go through the entire electrical system, found many bad modifications and probably saved the car from burning down due to electrical wiring. Thanks to all who offered solutions!