Yes the alternator can do this,BUT so can the old relay and old or corroded light bulbs. Mine did this (and still does on occasion). Has been doing this for years and when I did end up rebuilding the alt it really didn't make much differance.

Well, here's a quick-n-dirty check that worked for me. When I bought the truck, the turn signals would be slow, and would eventually freeze "on". If yours is doing this, when it freezes in the "on" state, whack the driver-side wall of the footwell with the side of your left foot. If the signals start flashing again (albeit slowly, or freeze "on" again shortly thereafter) it's your relay. I just got a generic one from the local Kragen that had the same lug pattern as the Mitsu one, and zip-tied it to something on the left side of the footwell and it's still flashing regularly 2 years later <img src="/forums/images/graemlins/kewl.gif" alt="" /> Hopefully your fix will be as easy.

Eric W.

I've got a similar problem with my signals, but probably weirder!

Anyway, since my rebuild was finished (and I think before the rebuild too), my lft blinker would usually remain on constant and would blink maybe 10% of the time. Usually when turning or on acceleration. Probably when I gave it the gas more power to the alternator, etc....

Anyway, emergency flashers (diff system but same bulbs) work great. That's right - all bulbs work.

I tried replacing the flasher with the specified generic replacement from NAPA, both right and left seemed to stay on constant then. Returned flasher and reinstalled the original.

Anyway, just recently this past weekend, the left signal flashes regularly now.

Do you think this is an intermittent power problem witht he alternator (low output, then improves periodically? but why not affect the right signal as well?) intermittent wire fault, or bad/dirty contact on the column switch? I don't think it's the latter. If it was a bad switch contact, it probably wouldn't come on at all.

Any thoughts with an intermittent steady turn signal that affects one side only?

MI-Mitsu

stock raider 2.6 alt is 40 amps.if you get a 88 or 89 starion alt for the intercooled turbo it is 75 amps and it bolts right in.i love my alt.i have one on my brothers 87 monty also.