And by weird I mean the flash rate varies from very fast, to normal , to slow or even not flashing at all. The symptoms are random; no particular sequence for them.
Point me in the right direction for the fix....
And by weird I mean the flash rate varies from very fast, to normal , to slow or even not flashing at all. The symptoms are random; no particular sequence for them.
Point me in the right direction for the fix....
Sounds like grounding or the actual flasher.
What vehicle? Old enough to have a simple flasher unit? Behavior changes as you put stress on the signal arm? All the bulbs are working, and the same brightness? Putting a bit of pressure on the hazard switch changes behavior?
It might help to know what the vehicle is.
It's always a bad ground, isn't it?
The vehicle is a '96 GMC Sonoma.
Should be an EP35 flasher, I bet.
I vote flasher.
That what it was in the XJ and it was doing the same thing. One minute it was flashing properly, the next it would flash once and stop. Or maybe flash twice while waiting for a turn light. Or maybe just do nothing.
What really sucks is the new flasher always flashes, but not at a steady rate. It speeds up and slows down. Drives my OCD crazy.
Is the flasher an aluminum cup, a blue plastic cup, or a grey transparent plastic cup? Does it sound like tink-le tink-le or like tick tick tick tick?
If its the first (aluminum cup or blue plastic) you have a thermal flasher that uses a bimetal strip and it is very suspect. If its the latter (grey transparent) you have an electronic flasher. Some trucks got the more expensive electronic flasher if it has the tow package, or if the factory assumed you would use it for towing. I doubt the flasher would be suspect in that case.
Does it do the same thing for left and right? If so, then it's not likely a ground since each side grounds at different points (although the rear signals may both ground in one spot... not sure). You can eliminate the ground issue by temporarily jumping a wire from the body ground to a good ground and see if it stops acting strange.
Does it change if you play with the turn signal stalk? GM turn signal switches aren't the greatest piece of engineering.
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