Erratic sometimes rear 1157 bulb

Discussion in 'Electrical Systems' started by Chuck71RS, Feb 23, 2018.

  1. Chuck71RS

    Chuck71RS Veteran Member Lifetime Gold Member

    Nov 24, 2012
    Houston, Texas
    What is consistent is the rear tail light (tall filament), + sides and license

    What is erratic; brake, hazard, direction. Front hazard, direction and dash indicator work

    The 1157
    • new
    • sockets clean
    • Correctly inserted: Pushes down further and turns farther then the opposite insertion
    • turned the bulb in the sockets a few times
    • Swapped sides
    Grounding: All 8 bulbs (including the 2 sides) connect at different locations to the same ground wire. Since the 6 rear lights consistently turn on and off, the ground wire terminal is making good contact (but there could be wire problems between socket and connecting to the ground wire).
  2. harbone66

    harbone66 Veteran Member Lifetime Gold Member

    Feb 15, 2011
    Central Illinois
    Check that socket to ground wire first, bet you thats the problem
    Cardinal likes this.

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