INFO. ON ENGINE COOLANT SUPPLEMENT PELLETS USAGE. Saturn Saturn 1993

For 1990-2009 cars

# INFO. ON ENGINE COOLANT SUPPLEMENT PELLETS USAGE

#### SUBJECT: Information on Engine Coolant Supplement Pellets Usage

#### MODELS AFFECTED: 1991-1994 Saturns

PURPOSE: Engine coolant supplement pellets have been released for use in servicing minor engine cooling system weepage conditions. Minor engine cooling system weepage may be corrected by adding two engine coolant supplement pellets to the coolant reservoir. (One poly bag contains two engine coolant supplement pellets.)

#### IMPORTANT: A slight amount of weeping and traces of residue at the water pump weep hole (1991-1992 vehicles) or drip collector (1993-1994 vehicles) is considered normal. The water pump should only be replaced if coolant is dripping from the water pump weep hole or drip collector while the engine is in operation or while the system is pressurized.

Following installation of the engine coolant supplement pellets, minor system weepage, such as hose joint leaks should cease in 30 to 60 minutes of engine operation. Water pump weep hole or drip collector leaks should be corrected within 12 hours of normal engine operation. If leakage is not corrected within these time periods, additional diagnosis and corrective action is required. Refer to the "Engine Mechanical Service Manual" for engine cooling system diagnosis.

#### IMPORTANT: When engine coolant is changed for any reason, two engine coolant supplement pellets should be added to the coolant reservoir.

PARTS REQUIREMENTS: 21007224 Engine Coolant Supplement Pellets

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.