Cooling System - Water Pump/Seal Leaks
88chevy23GMC NUMBER: 88-T-137
GROUP: 6B - Engine Cooling
DATE: August, 1988
CORPORATE
NUMBER: 836206R
SUBJECT: WATER PUMP/SEAL LEAKS
MODELS: 1987-88 S/T MODELS WITH 2.8L ENGINE (VIN CODE R)
Some 1987-88 S/T trucks equipped with a 2.8L engine (VIN Code R) may exhibit a coolant leak from the water pump weep hole while the engine is running. If customer comments relative to coolant leaks are received and the water pump is diagnosed as the problem, then install a new water pump assembly which incorporates a new design seal. The new
design pump has the same overall appearance as the old part.
WATER PUMP AND GASKET ASSEMBLY
MODEL SERVICE PART NUMBER
S/T Truck 10120943
For vehicles repaired under warranty, use:
Labor Op: J3480
Labor Time: 1.0 hr.