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The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in the PI.
Use of a star washer under a ground wire connection. In the past, it has been known to use star washers under most ground connections. It was believed using a star washer would improve continuity to ground and prevent the ground fastener from becoming loose. With vehicles built today, star washers are not being used under any ground connection. It has been proven by GM engineering that with a star washer installed, it will increase the chance for corrosion and prevent the terminal from achieving proper torque.
It is recommend NOT to use a star washer on any ground connection to the body or chassis of the vehicle.
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Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
(96 - 05 All General Motors Passenger Cars) and (96 - 05 All General Motors Mid-Sized and Full-Size Pick Up) and (96 - 05 All General Motors Mid-Sized and Full Sized Utilities)
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GM bulletins are intended for use by professional technicians,
NOT a "do-it-yourselfer". They are written to inform these
technicians of conditions that may occur on some vehicles, or to
provide information that could assist in the proper service of a
vehicle. Properly trained technicians have the equipment,
tools, safety instructions, and know-how to do a job properly and
safely. If a condition is described, DO NOT assume that the
bulletin applies to your vehicle, or that your vehicle will have
that condition. See your GM dealer for information on whether
your vehicle may benefit from the information. |
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