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  1. #1

    Exclamation 1989 gmc suburban tail light problems

    The tail lights in my 1989 GMC suburban are being a problem. The brake lights work, the reverse and turn signal work, but the parking/running lights and the license plate light wont. I have replaced the bulbs. I checked the fuses (at least I am pretty sure I checked the right one). Any help and or suggestions would be greatly appreciated.

  2. #2


    Welcome to the site, Skalgar.

    Check for a broken or corroded wire. The parking and plate light are on the same circuit, and if both sides are out, the break is probably along the left frame rail, before the 'Y' that splits to the right side. If the wiring has a plug, check that too, for the nasty green goo.

    Good luck,

    1999 Chevy K2500 Suburban 350
    K&N, reworked cai, Thrush cat-backs
    Vinyl, cranks, floor shift, and rear air!

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