Chart 20
WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2006 Mercury Mountaineer, 2006 Mercury Monterey, 2006 Mercury Montego, 2006 Mercury Milan, and 2006 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.
- Engine Noise (under hood)
NOTE:
Attempt to identify the source of the noise. If the noise is from a source other than those listed below, refer to STEP 2: NO DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT SYMPTOM CHART INDEX (for noise such as spark knock) or the applicable service information article.
| SYSTEM/COMPONENT | REFERENCE (PINPOINT TESTS -- GASOLINE MODELS unless noted) |
|---|---|
| Secondary Ignition System | For vehicles equipped with a coil pack ignition system, GO to Pinpoint Test JC . |
| Snap noise that may be due to secondary ignition arcing. | For all others, CHECK the condition of the spark plug boots. |