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Blinker light gone Fast

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Boss, Dec 29, 2000.

  1. Boss

    Boss 1/2 ton status Author

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    Fellas,

    I met up with "fr8train" the other night and I was driving home, he was behind me. He noticed that my blinker (turn signal) was blinking really fast. He told me and then I noticed it was too. I do remember in the past it was never that fast. It was like normal speed, like 1 blink per second or two. Now its like 2 or 3 blinks a second. I'm really baffled b/c I don't know how or why this happened. Any ideas?? He tells me that this may be harmful, but I'm not sure. Thanks.
    Boss

    [​IMG]
     
  2. K5-Kowboy

    K5-Kowboy Registered Member

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    Hey Boss -

    Is your front blinker on the same side working?

    [​IMG]<font color=blue> K-5 Kowboy </font color=blue>[​IMG]

    Go Through It or Go Over It....Going around is NOT an option.
     
  3. Boss

    Boss 1/2 ton status Author

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    Yeah, they're all going fast. I tried both right and left and looked at the rear and fronts. Plus, when inside the cab, the blinkers on the dash are moving at the same speed as the blinkers outside the truck. I'm stumped [​IMG]
    Boss
    <A target="_blank" HREF=http://www.boss.coloradok5.com>http://www.boss.coloradok5.com</A>

    [​IMG]
     
  4. K5-Kowboy

    K5-Kowboy Registered Member

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    That is strange if they are all working. I've had one go out and it changed the blink rate of the other one on the same side before. From an electrical standpoint...about the only thing that is common to all of them is the flasher....might try changing it for a buck and a half. As far as damage, I can't think of any damage it would do, exept possibly decrease the life of the bulb and/or flasher.

    [​IMG]<font color=blue> K-5 Kowboy </font color=blue>[​IMG]

    Go Through It or Go Over It....Going around is NOT an option.
     
  5. HarryH3

    HarryH3 1 ton status Author

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    Are the side markers blinking? They're part of the blinker circuit on some years.

    <font color=black>HarryH3 - '75 K5</font color=black>
    <A target="_blank" HREF=http://ThunderTruck.ColoradoK5.com>http://ThunderTruck.ColoradoK5.com</A>
     
  6. K5-Kowboy

    K5-Kowboy Registered Member

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    Good point Harry...didn't think about that - but it is a distinct possibility!

    [​IMG]<font color=blue> K-5 Kowboy </font color=blue>[​IMG]

    Go Through It or Go Over It....Going around is NOT an option.
     
  7. Boss

    Boss 1/2 ton status Author

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    Yeah, they're all blinking. I'm going to double check all of this when I'm on lunch break (about 1 hour from now) to verify all of this. I'm starting to think, maybe this started to happen when I swapped in the Grant steering wheel about 3 to 4 weeks ago. I had to wire the horn in. That is the only thing I did, wiring wise, to the steering column. The horn works great. But, I'm thinking that maybe since then, was the beginning of the fast blinkers?? That's the only thing I can think of that will cause this. But I don't think the horn has anything to do with the blinkers. Who knows. Anyways.....I'll let yall know what I see after lunch. Thanks
    Boss
    <A target="_blank" HREF=http://www.boss.coloradok5.com>http://www.boss.coloradok5.com</A>

    [​IMG]
     
  8. backlash

    backlash 1/2 ton status

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    Hey Boss,

    Seems to me that you just need to replace the switch (points) ... can't remember what it is called on the fuse panel. The little silver thingy. They can either cause the blinkers to run fast or slow when they go bad. If the wiring check you did doesn't show anything, you can try the blinker switch ... only a few bucks at any parts store.

    PS Ready for the snow?
     
  9. UseYourBlinker

    UseYourBlinker 1 ton status

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    I'm having the same problem. At idle they blink fast, but when on the gas they blink normal. It's been doing it for about 4 months now....No idea?

    If it ain't a Chevy, don't raise it up!
     
  10. K5-Kowboy

    K5-Kowboy Registered Member

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    The little silver thingy is the flasher. Hey boss, here's an idea! Turn on your hazard lights and see if they blink at the same rate as your turn signals or if they are "normal speed". The older model blazers had 2 flashers..one for turn signals and one for hazards. If they work "normal" with the hazards on, you can pretty much bet it's the flasher for the turn signals. Don't know why I didn't think about that sooner..but there ya go.

    [​IMG]<font color=blue> K-5 Kowboy </font color=blue>[​IMG]

    Go Through It or Go Over It....Going around is NOT an option.
     
  11. Boss

    Boss 1/2 ton status Author

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    Thanks Kowboy, I'll try that after work. Yeah, I figured it may be the flasher, didn't know they go bad though. Anyways, during my lunch, turn the blinkers and yeah, all of them work and all of them move at the same speed. After work, I'll try out the Hazards. Thankyou everyone. Oh, and Happy New Year!!!![​IMG]
    Boss
    <A target="_blank" HREF=http://www.boss.coloradok5.com>http://www.boss.coloradok5.com</A>

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  12. Woodman89

    Woodman89 Registered Member

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    This has happened to me before. I pulled the taillights out of the back and redid the grounds from the lights to the body and this solved the problem. The sheet metal around where it was grounded was all rusted. Bad ground! Bad ground! [​IMG]
     
  13. gokartergo

    gokartergo 3/4 ton status Staff Member Moderator

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    On some blazers there are two flashers. One for the blinkers and one for the flashers. Turn your blinkers on and feel whick one is blinking. Then you could swope the two. Once you swap them. The blinkers should be fine and the flashers should be fast.

    Gokartergo

    [​IMG]
     
  14. fr8train

    fr8train 1/2 ton status

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    Kowboy, I had a K2500 with the same problem and when we hooked it to the trailer it really made the fuses and flasher hot. I just asked my dad why and he said that it was a bad ground in the rear part of the bed. It basically caused a smoked wire and blew a couple of fuses. Not fun.
     

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