Turn signals not flashing, intermittent problem
- Thread starter 08Malibu
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Its bulb related. Take the bulbs out one at a time and clean the contacts as well as the socket, lube with dielectrically grease and reinstall. Check harness grounds at the back as well as the front. Most of the problems are bad grounds. Alternator that takes time to charge? That could be related to the alternator cooling system not working properly 
It did it again the other day. I noticed this time it was only on the right side. I agree it’s most likely bulb related.
Took out the rear bulbs and they looked fine. When I put them back in, the signals didn’t work. I wound up replacing the bulbs, and the problem is fixed. Not sure if there was corrosion in the socket or what. I didn’t see anything. Problem is fixed now so I’m happy.
I replaced all the outside bulbs on mine even though they "looked" good. It is worth it vs chasing Gremlins. Looking Good doesn't equate to Working Good.
Might be a good reason to check your tail light’s too, on my ‘88 Caprice they worked but had an crazy amount of corrosion.
Agreed, those things are cheap anyway. Even when replacing them didn’t help in the case of my Pontiac Bonneville, I still wasn’t disappointed in my purchase, peanut bulbs works for other vehicles too 👍
I never posted the update to this. I replaced all the rear bulbs, and the lights all work as they should.
The design is problematic. But newer cars still using incandescent bulbs are even worse. My fix was to melt a small blob of solder onto the little buttons on the bottom of the bulb that make contact in the socket. That way even if the contact strips are weak, the blobs are bigger than needed and work much better.
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