Preliminary Inspection

NOTES:
- Prior to any teardown, repair or component replacement, the following steps should always be considered.

- Diagnostic Trouble Codes (DTC's) are cleared whenever the control module or the battery is disconnected. Therefore, all DTC's should be read prior to any vehicle power interruption or troubleshooting.

Any Of The Following Should Not Be Overlooked As The Possible Cause Of A Driveability Problem;

- Engine Vacuum - At least 13 In Hg in neutral?
- Engine Valve Timing - Set to specifications?
- Engine Compression - Within specifications?
- Engine Exhaust System - Free of any restrictions?
- Engine Positive Crankcase Ventilation System - Free of any restrictions?
- Engine Drive Sprockets - Cam and crankshaft correct installation/not damaged?
- Torque Converter Stall Speed - To specifications?
- Power Brake Booster - Holds vacuum?
- Fuel Contamination - High alcohol or water content?
- Fuel Injectors - Rough idle may be caused by injector control wire not connected to correct injector
- Technical Service Bulletins - Any that may apply to vehicle?
- Engine Secondary Ignition Check - Any abnormal scope patterns?