That would be my guess also. It would certainly be the first thing that I checked, anyway. The turn signal flasher should be stuck into a little clip on the firewall side of the driver's side air vent up under the dash. It's very difficult to find if you don't know where it is.
I must confess that I'm not real sure what that even means. I understand that the emergency flashers are on a different circuit from the turn signals, hence the two different flashers, but, since they are electricaly powered, I don't see how they can operate consistantly, independent of voltage level. The emergency flashers get power pretty much straight from the hot side of the starter solenoid. The wire comes from the hot side of the starter solenoid to the fuse box and from there it splits off to power the emergency flashers and the cigarette lighter. If anything, they would be even more responsive to lower battery power and alternator output than the turn signals. Having the emergency flashers, which pull power straight from the hot side of the starter solenoid, operating normally tells me that his problem is with something specific to the turn signal circuit.
Those are all possibilties, also. It's just that the flashers are cheap and easily replaced. If that fixes it, cool, if not, you are already up in there looking at the wiring pertaining to the turn signals and can start looking for problems with the volt meter, checking continuity, resistance, etc.. I would start with the really easy stuff that would account for all of the symptoms first, though.
Both flashers are the same. They are your everyday, run of the mill, part number 552 flashers that every Mustang built by Ford in the sixties had in it.
Sure. The only problem is your local Checker may have turned into an O'Reilly's since you were last there.
If not, it will soon. The NM guys are moving to AZ for conversions as soon as they finish here.Veronica,Hi again.
This is not entirely correct. The lower the voltage the slower the flashers flash. I don't know what you mean when you say "independent of voltage", but there is a voltage dependent component to the flashers. And their speed probably isn't a big concern to anyone.
But it can be useful when troubleshooting.
Hi again.
No, they don't work like that at all on a 66 Mustang. :nogrinner That's how many newer cars work, but not a 66 Mustang. How that circuit works is power source to flasher #552 to switch to lights. You don't have to ask whether that's the turn signals or the emergency flasher circuit because that's how both systems go. They are identical in every respect, with one exception. The turn signals have a keyed power source and the emergency flashers have a constant power source. As I said, newer cars work in the way that you've described, but the original poster is asking about the turn signals in his 66 Mustang, not his 99 Suburban. I am not saying that there isn't some car for which this might be true - but its NOT a '66 Mustang with original hardware.
