Question about 1990 Chevrolet Suburban

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Canadian tire change my fuel tank, now my rear brakelight blacks out when brakes are applied, but only when my headlights are on. All other times, all lights work fine

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I sounds like the ground wire for the rear lights was broken or disconnected.
There is probably only one ground wire for all the rear lights, and I suspect it is in the back.
Try to trace the wires, as best you can. It's possible there is also a common ground connection for the gas tank gage and pump.

Posted on Mar 27, 2011

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