Engine Controls - Tests W/O Codes - 4-CYL CARBURETED: Introduction: Notes

Use this section to diagnose driveability problems that exist when a hard fault code is not present. Symptom checks are intended to direct the technician to malfunctioning component(s) for further diagnosis. A "symptom" should lead to further testing of specific components or systems, or verification of adjustment specifications.

Symptom checks cannot be used properly unless the problem occurs while the vehicle is tested. To reduce diagnostic time, ensure steps in BASIC TESTING and TESTS W/CODES articles (if applicable) have been performed before attempting to diagnose a symptom. See LINKS TO RELATED ARTICLES below.