Turn Signals are Winding Down

My signals started flashing at awkward intervals, and making a wheezing noise in between the slow clicks. Now a couple months later they sometimes wait 5 seconds between, and then two or three in rapid-fire. No bulbs are burned out. Does this sound like a simple turn signal flasher replacement fix? If so, which one is it under the dash (I hear there is one for the turn signals and one for the emergency flashers). I haven't looked under the dash yet, so I don't know if they look the same or which one's which. Also, do I need a specific one, or will any type do from NAPA, Schucks, or Knechs? Thanks for any help. Hoping this will be a cheap fix.

Mine is doing the exact same thing please tell me how to fix it thanks.

They are both up underneath near the steering column.
You will have to take off the knee bolter... to get to them.

The easiest way to tell which one it is would be to run
the turn signal and feel which one is vibrating while it
clicks. They pop out of the clip that holds them, so
you can actually hold it in your hand while it is switching
to find out.

I recently replaced mine from an Autoparts store. They
are of a common type. I would recommend getting a non-
load sensing type. They work more evenly over voltage.
The only drawback is that you will not be able to use
the switching capability as an indication that a bulb
is out. This is because the non-load sensing type use
their own load as a heater for the bi-metallic switch.

Thanks GuMan, I fixed it no problem. Kinda surprised it was easy. I expected it to be another Jaguar like I had before. Happily, my dad had a couple units laying around.
The emergency flasher one is toward the middle up under the dash, and the turn signal one is more toward the door, kinda nestled behind some wires and tubes.

Thanks for the info. It helped me out.