Intermittent Problem Diagnosis

Intermittent problems may cause noticeable driveability problems or Malfunction Indicator Light (MIL) illumination. Before diagnosing intermittents, perform the BASIC TESTING - 4-CYL test steps and those in the TESTS W/CODES - 2.6L articles (if applicable). Intermittent fault testing requires duplication of circuit or component failure in order to identify the fault. These procedures may cause the computer to record a fault code which may help in diagnosis.

If the vehicle's problem does not produce fault codes, it will be necessary to monitor voltage or resistance values using a DVOM while attempting to produce conditions which will create an intermittent fault. A change in status on the DVOM will indicate a fault has been located.