Diagnostic Test
WARNING: This page is about a different variant/trim than selected.
CHECKING ENGINE MECHANICAL
NOTE:
The following items should be checked as a possible cause of a Driveability or No-Start problem.
WARNING:
Do not attempt to remove or separate high pressure fuel lines. Failure to follow these instructions may result in possible serious or fatal injury.
- Engine Valve Timing - must be within specification.
- Engine Compression - must be within specifications.
- Camshaft Lobes - check for abnormal wear.
- Camshaft Position Sensor - check the camshaft position sensor tooth for debris and deterioration.
- Crankshaft Position Sensor - check the crankshaft tone wheel for debris and deterioration.
- Engine Exhaust System - must be free of any restriction.
- Engine Drive Chains and Sprockets - must be properly positioned.
- Vacuum System - must operate properly and be free of any vacuum leaks.
- Fuel - must have adequate supply and must be free of contamination (ie. debris, water and gasoline).
- Fuel Injectors - must not be plugged or restricted.
- Fuel Lift Pump - must operate properly (where applicable).
- Fuel Injection Pump - must be producing the correct output volume and pressure.
- Inspect the Fuel Lines, Fuel Filter and Fuel Pressure Relief Valve for signs of restriction and leaks.NOTE:
Check for any Technical Service Bulletins that may relate to the problem.
Are there any problems evident?
Yes
- Repair as necessary.
- Perform the PCM VERIFICATION TEST. Refer to appropriate Engine Diagnostic information .
No
- Test Complete.