ENGINE OVERHEATING POSSIBLE THERMOSTAT STICKING. Buick Somerset 1987

For 1990-2009 cars

# ENGINE OVERHEATING POSSIBLE THERMOSTAT STICKING

#### MODELS AFFECTED: 1987 SOMERSETS/SKYLARKS WITH THE L68 2.5L L-4 ENGINE (VIN CODE U)

Some 1987 Somersets and Skylarks built between February 15, 1987, and May 18, 1987, with a 2.5L engine have thermostats which may stick. This could result in overheating or owner comment of an intermittent "TEMP" light.

If this condition is encountered, inspect the radiator and coolant hoses for adequate coolant flow as the engine reaches normal operating temperatures.

If coolant flow is reduced or condition is intermittent, replace the thermostat with part number 3059793 available from GMSPO.

WARRANTY INFORMATION Labor Operation Number: T5145 Labor Time: 0.3 hours Trouble Code: 92

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.