Question about 1987 Chevrolet S-10 Pickup

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Brakelight on my 87 s-10 blazer doesn't work sometimes why?

Replaced bulb and still doesn't work part of the time.

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It is probably your turn sigl switch (located in the stearing column). I know of others who have had this problem. I had this on my 1998 Lumina and am currently having it on 87 S-10. Will wait for warmer weather to repair.

Posted on Feb 26, 2009

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Check ground ,make sure it is getting a good ground.

Posted on Feb 14, 2009

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No brake lights on my 02 blazer, i have running, turn, and hazard lights. replaced brake switch and nothing still. theres a auto start system on the truck that came on it when bought used. its hacked in...


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The headlights work but turn signals don't and hazards don't work either and brakelights still don't come on.


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First thing to check is fuses, i know one lamp works, but maybe the two main lamps have their own fuse, doesn't hurt to check.

Getting at the bulbs is easy, open your rear hatch (door) and you will see a few screws holding each rear lamp in place, once all screws are removed the lamp needs to be carefully pulled out, there will be some sort of clip or clips holding it in place, so don't just yank it off, slowly pull on it until loose.

It's a good safety precaution to disconnect your battery just in case. Then to remove the bulb, normally its a quarter or half turn and the bulb comes right out for you to look at. You can use a multimeter, and (with battery connected) turn lights on and see if there is power at the bulb. if there is replace the bulb. if not, then you have other issues; wiring, fuses ... could be many different things.

I hope this helps you. Sometimes you can see the filament in the bulb is broken, but a lot of the time the bulb can look fine but have a broken connection (aka an Open) elsewhere in the bulb. Get a battery and wires, connect them to the bulb, see if you can get light.

Goodluck

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