GM Service Manual Online
For 1990-2009 cars only

DIESEL WATER PUMP LEAK GASKET INFORMATION

There are two raised sections on the front cover between the bolts underneath the water inlet holes. The raised sections are put there to put a higher load on the water pump gasket in that area. Should you experience a leak in that area when transferring the water pump to a Goodwrench engine, apply a RTV sealer to each side of the gasket. Do not grind off the raised section.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those 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 a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.