Engine diagnostics and checks 1. Check the validity of the customer's complaint by using the system. 2. Perform a visual inspection for obvious signs of mechanical or electrical damage. Visual...
Engine oil leaks NOTE: Before installing new gaskets or oil seals, make sure the fault is clearly identified. If the oil leak cannot be clearly identified by inspection, perform a check...
Measuring compression pressure NOTE: The Powertrain Control Module (PCM) will receive an error message if the relay is removed or electrical components are disconnected. This error message must be...
Measuring oil pressure Oil pressure depends on various factors (engine crankshaft speed, oil temperature, oil viscosity, degree of contamination of the oil filter, etc.). NOTE: Measure the oil...
Checking the valve mechanism — static (engine off) Remove the valve cover. For additional information, refer to Section 303-01A / 303-01B / 303-01C / 303-01D / 303-01E. Check all valve train components for damage and...