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Q: Turn signal comes on but wont blink on 1990 Chevrolet Cavalier

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My turn signals come on but dont blink, my emergency flashers however blink perfectly. They are on the same relay (which we have tried replacing 4 times just in case we had a bad one) and much of the same wiring which we have checked with a multimeter. We have also replaced the turn signal switch in the steering column three times ( one was bad) each time it would make the signals blink for about 5 minutes then stop again. We have checked/replaced all the bulbs and fuses. I have seen many other cavalier owners post a similar problem on other sites but they never get any answers.
(1) Answer
(2) Comments
there is a separate turn signal flasher for this unit. you have probably been replacing the 4 way flasher instead. look under the left side of dash for a small looking can with 2 wires.

Roy
Or also you can have a blowed bulb ussually when a bulb blows it locks the flasher so that the turn signal lights up but dosent flash.
Thankyou,,,sadly that didnt help but i would appreciate any other suggestions...everyone who has tried to fix it has decided it is posessed :(