Question about 2000 Chevrolet Express Cargo

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Brake light problem

I have a 2000 chevy express 1500.van
I turn the tail lights on all 4 lights go on, I step on the brakes the lower lights go off and the upper lights do not get any brighter
If the tail light are off and I step on the brake the lower lights come on but at the lower brightness. The 3rd light works in all situations

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  • Ray Keckeisen May 11, 2010

    has anyone ever changed one of the bulbs,they look alike but each bulb has a different resistance, check and make sure you have the rigth bulbs in the proper position

  • Dave  C
    Dave C May 11, 2010

    You have a bad ground at the tailights. You need to check the wiring to the tailight assemblies, there may be a ground that is screwed to nearby sheet metal that is loose or broken. A wiring diagram that that shows the wire color for the ground will also tell you where to look. If someone has installed a trailer hitch, looked for mauled wiring where they attached the plug for the trailer.



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My van did the same thing it was the ground at the socket it had a good ground all the way to the socket but lost it right at the socket.

Posted on May 18, 2009


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I have a 2000 chevy express 1500. I turn the tail lights on all 4 lights go on, I step on the brakes the lower lights go off and the upper lights do not get any brighter If the tail light are off and I...

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