Chart 20
WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2014 Lincoln Navigator, 2014 Lincoln MKZ, 2014 Lincoln MKX, 2014 Lincoln MKT, and 2014 Lincoln MKS. 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 NO DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT SYMPTOM CHART INDEX (for noise such as spark knock) or the applicable service information to continue diagnosis.
| SYSTEM/COMPONENT | REFERENCE (Section 5 Pinpoint Test unless noted) |
|---|---|
| Secondary Ignition System | CHECK for a snap noise that may be due to secondary ignition arcing. For Fiesta 1.6L TIVCT, GO to PINPOINT TEST JC: SECONDARY IGNITION (COIL PACK) . For all others, CHECK the condition of the spark plug boots. |
| Turbocharger System | REFER to the appropriate Fuel Charging and Controls - Turbocharger article to diagnose the turbocharger noise. |