LU-21 LUBRICATION - OIL COOLER (2JZ-GTE) LU04S-01 INSPECTION 1. INSPECT RELIEF VALVE Push the valve with a wooden stick to check if it is stuck. If stuck, replace the relief valve. 2. INSPECT OIL COOLER Check the oil cooler for damage or clogging. If necessary, replace the oil cooler. Push P11183 1997 SUPRA (RM502U) Author : Date : 1468