Diagnostic Procedure Overview

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

Qualifying the symptom by the particular sensation present can help narrow down the cause. Always use the "symptom" to "system" to "component" to "cause" diagnosis technique. This diagnostic method divides the problem into related areas to correct the customer concern.

Verify the "symptom".
Determine which "system(s)" can cause the "symptom" using the diagnostic tools described in this service information.
After determining the possible "system(s)", refer to the appropriate article in this information to identify the worn or damaged "components".
After identifying the "components", identify the "cause" of the failure.