1998 Chevrolet Blazer Engine Oil Cooler Hose/Pipe Replacement

Download 1998 Chevrolet Blazer – 4WD | Blazer, Bravada, Jimmy, S10 Pickup,  Sonoma (VIN S/T) Service Manual | Engine | Engine Mechanical – 4.3L | Repair Instructions. Engine Oil Cooler Hose/Pipe Replacement (4WD) Removal Procedure 1. Remove the steering linkage shield. Refer to Steering Linkage Shield Replacement in Steering Linkage. Important: Have a drain pan ready for the engine oil to drain into. 2. Remove the bolt attaching the engine oil cooler lines to the remote (frame mounted) oil filter adapter. 3. Remove and discard the seals. 4. Remove the engine oil cooler line retaining rings from the engine oil cooler line quick connectors at the radiator engine oil cooler inlet and outlet. Follow the next two steps for the proper retaining ring removal procedure. 5. Using a bent-tip screwdriver or equivalent, pull on one of the open ends of the retaining ring in order to rotate the retaining ring. 6. Rotate the retaining ring around the quick connector until the retaining ring is out of position and can be completely removed. Discard the retaining rings. 7. Remove the engine oil cooler lines from the quick connectors at the radiator engine oil cooler inlet and outlet. Pull the lines straight out from the connectors. 8. Remove the remote engine oil filter lines support clamp bolt. Important: Have a drain pan ready for the engine oil to drain into. 9. Remove the bolt attaching the remote engine oil filter lines to the remote (frame mounted) engine oil filter adapter. 10. Hold the remote engine oil filter lines below the remote engine oil filter lines (engine mounted) adapter to drain the engine oil. 11. Remove and discard the seals. 12. Remove the bolt attaching the remote engine oil filter lines to the remote engine oil filter lines (engine mounted) adapter. 13. Remove and discard the seals. 14. Clean all of the components in a suitable solvent, and dry them with compressed air. 15. Inspect the fittings, the connectors, the cooler lines, the cooler, the filter lines, and the remote filter adapter for damage, distortion, or restriction. Replace parts as necessary. 16. Flush the engine oil cooler, the engine oil cooler lines, the remote engine oil filter adapter, and the remote engine oil filter lines with the same type of engine oil normally circulating through the engine.