Turn signal

88 chevy 4+4 turn signal lights up but wont flash,replaced flasher still wont flash.

It is any different with the tail lights on or off?

dont know ill check kwik

did not make a difference

the 4 ways flash but turn signal wont are there two different flashers

Check and clean the bulb socket grounds and recheck the bulbs.

Does this truck have the double filament bulbs in one? Like the brake/parking and signal inside one lens or are some separate?

Yes, there are two different flashers, but I suggest doing what Roadrunner suggested, first.

found the second flasher wiggled it ,started working,half a packing peanut wedged under it works fine now. thanks for your suggestions, were all helpful. vince