Test NS-2: Checking Engine Mechanical Systems

NOTE: Possible causes are: spark plug cables incorrectly positioned, engine compression problem, wet spark plugs or valve timing out of specification.

Turn ignition off. Inspect spark plug cables for proper placement. If spark plug cables are okay, go to next step. If spark plug cables are not okay, reinstall spark plug cables as necessary. Perform TEST VER-1A: NO START VERIFICATION .

Check engine compression. See COMPRESSION SPECIFICATIONS table. If engine compression is okay, go to next step. If engine compression is not okay, repair engine as necessary. Perform TEST VER-1A: NO START VERIFICATION .

COMPRESSION SPECIFICATIONS

Engine

Specification⁽¹⁾

2.0L & 2.4L

170-225 PSI (12-16 kg/cm² )

2.5L

178 PSI (13 kg/cm² )

⁽¹⁾	Maximum variation between cylinders is 25 percent.

Attempt to start engine. If engine did not start or stay running, go to next step. If engine started and stayed running, go to step 5 .
Inspect the following items as possible problems:
- Engine valve timing must be within specifications.
- Engine compression must be within specifications.
- Engine exhaust system must be free of restrictions.
- Engine PCV system must flow freely.
- Engine drive sprockets must be properly positioned.
- Fuel must not be contaminated.
- Secondary ignition must have a normal ignition pattern.
- Check Technical Service Bulletins (TSBs) for any pertinent information.
If any problems were not present, go to next step. If any problems were present, repair as necessary. Perform TEST VER-1A: NO START VERIFICATION .
Turn ignition off. Remove all spark plugs and inspect tips for wet fuel. If spark plug tips are not wet, go to next step. If plug tips are wet, clean spark plugs. Perform TEST VER-1A: NO START VERIFICATION .
Check valve timing. If valve timing is okay, test is complete. If valve timing is not okay, repair as necessary. Perform TEST VER-1A: NO START VERIFICATION .