Bulbs keep blowing
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This is a discussion on Bulbs keep blowing within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Is it common for bulbs to blow in these? I just went to get an oil change last week and ...

  1. #1
    Registered User Venom351R's Avatar
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    Bulbs keep blowing

    Is it common for bulbs to blow in these? I just went to get an oil change last week and a plate light, the center bulbs in the head light (both sides) and the parking lights (both sides) were blown. And now as of last night I have a brake light out. I had the car inspected in Dec and everything was fine then so all of this has happened since then. Its an 07 so its not really that old. My Mustang is a 94 and Ive never replaced one bulb in that, my ranger which I had before the STI was a 2001 and I was not chasing blown bulbs in that either. So any reason why its burning through bulbs lately or is it just one of those things?
    2007 WRX STI- Stock 13.8@102

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  3. #2
    Registered User Obeisance's Avatar
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    I think that a short in the wiring could cause excess current draw through the bulbs and toast them (although a fuse is really what is supposed to pop). If it were my car I'd do my best to examine as much of the lighting-wiring as possible, or maybe use a multimeter at the bulbs to check current flow/resistance at each of the bulbs to see if I could satisfy Kirchhoffs laws.

    In my car, an '05 wrx, I have not had to change any bulbs since I've owned it for 9 mos.
    David - '05 WRX

  4. #3
    Registered User 2.0Rs's Avatar
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    You're fine. Bulbs blow all the time. The ones you listed could have even been out during inspection. Sometimes those hidden ones are a pain to see or you see then and forget to write it down because you got distracted. You have an 07, replace them and move on. If they keep blowing after that then you could have an issue somewhere.

  5. #4
    Registered User Monk_Knight's Avatar
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    It's a 5 year old car, eventually bulbs are going to burn out and need to be replaced.

    As a side note, it's pretty common to have bulbs start to go about the same time. If they were all installed together, then they often will reach the end of their lifespan at around a similar point in time. The last time I had to change bulbs, I had a headlight, fog light, reverse light, and both brake lights go out within a month or so of each other.

  6. #5
    Captain James of the SS Impreza has gone down with the ship Drews's Avatar
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    They are pretty much on all the time. Not a huge deal.
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    Lando Calrissian DemonWRX's Avatar
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    Perfect time to upgrade some of those to LED
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    Registered User Venom351R's Avatar
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    Quote Originally Posted by DemonWRX View Post
    Perfect time to upgrade some of those to LED
    I was thinking that.


    Thanks for the reply's. I replaced the brake light and I got the parking light bulbs but Im having a hard time trying to figure out exactly which bulb is the one in the head light? Not the head light bulb its self but that one that is kind of in the middle. I'm not sure exactly what its called or the part # for it.
    2007 WRX STI- Stock 13.8@102

  9. #8
    Registered User Venom351R's Avatar
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    Bump. Anyone know the part # for the bulbs in the center head lights?
    2007 WRX STI- Stock 13.8@102

  10. #9
    Registered User 2.0Rs's Avatar
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    Quote Originally Posted by Venom351R View Post
    Bump. Anyone know the part # for the bulbs in the center head lights?
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  11. #10
    Lando Calrissian DemonWRX's Avatar
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    I always find Sylvania's site to be the most helpful in finding bulbs....here are all the bulbs for the 07 STi

    Low beam headlight.............HID-D2S
    High beam headlight............9005
    Parking light.......................168
    Front turn signal..................992 (7440A)
    Rear turn signal...................992 (7440A)
    Tail light..............................7443
    Stop light............................7443
    Fog/Driving light...................H3-55W
    License plate........................168
    Back up light........................7440
    Front sidemarker...................168
    Ash tray................................74
    Map light..............................DE3175
    Dome light............................DE3175
    Trunk/Cargo area...................2825
    Stink-Eye Mob #39
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