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1989 gmc suburban tail light problems

Discussion in 'GM Electrical Tech' started by Skalgar, Jan 5, 2011.

  1. Skalgar

    Skalgar New Member

    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.:great:
  2. KidHauler

    KidHauler Epic Member 5+ Years 500 Posts

    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,

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