For 1990-2009 cars only
- Perform the following inspection and maintenance operations at intervals determined by the vehicle's operating conditions.
- Check all the oil, the supply hose (1) and the oil lines and fittings for tightness and leakage. Tighten or replace as needed.
- Check the compressor discharge line for carbon restriction. Clean or replace as needed.
- Check the governor cut-in and cut-out pressures. Adjust as needed. Refer to Governor Adjustment .
- Remove the cylinder head. Clean the carbon from the inlet and discharge valves.
Check all the air, the coolant supply (1) and the coolant return (2) lines and fittings for tightness and leakage. Tighten or replace as needed.
