Initial Inspection and Diagnostic Overview

Flow Of Diagnosis:

1. Check any Technical Service Bulletins that may apply to the vehicle being serviced. These bulletins may contain important information regarding warranty, recalls, revised service procedures, etc.

2. One of the most important checks that must be performed as part of any diagnostic procedure is a careful visual inspection. This can often locate problems without further testing. Be sure to inspect all vacuum lines for correct routing, pinches or cuts, swollen or loose connections, etc. Check hoses that may be hidden under the air intake, A/C compressor, alternator or accessory brackets. Carefully check all electrical wiring for damage, bare or burned connections, etc. Be sure all wires to ECM controlled devices or sensors are at least 100mm (4") away from ignition coil or spark plug wires.

3. The On-Board Diagnostics will display any trouble codes that may be stored in computer memory. If a check of the On-Board Diagnostics reveals system problems, perform the DIAGNOSTIC CIRCUIT CHECK. If problems with ECM control of the carburetor are indicated, perform the SYSTEM PERFORMANCE CHECK.

4. This section contains component and circuit tests that will aid in diagnosis and repair of problems or failures that store trouble codes in computer memory.

5. This list of symptoms and their possible causes is used to aid in diagnosing problems or failures which do not store trouble codes in the computer memory.

6. This section contains tests of individual ECM controlled components that will aid in troubleshooting problems indicated by symptom rather than fault codes.


DRIVEABILITY WORKSHEET

Driveability Worksheet (Part 1):

Driveability Worksheet (Part 2):

REPAIR HISTORY

Repair History (Part 1):

Repair History (Part 2):