Chart 6
WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2011 Mercury Milan, 2011 Mercury Mariner, 2011 Lincoln Navigator L, 2011 Lincoln Navigator, and 2011 Lincoln MKZ. However, it is still accessible from the selected car via links, so may be relevant.
- Unique Idle Concerns: Low/Slow Idle
- Stalls/Quits: Deceleration
SYMPTOM CHART - LOW/SLOW IDLE AND DECELERATION
| SYSTEM/COMPONENT | REFERENCE (Pinpoint Test unless noted) |
|---|---|
| Verify the fuel filler cap is correctly tightened or the capless fuel tank filler pipe is correctly sealed. | Visual. |
| Automatic Transmission (stalls/quits on deceleration) | REFER to the appropriate Automatic Transaxle/Transmission article to diagnose the torque convertor operation concerns. |
| Fuel Delivery System | GO to PINPOINT TEST HC . |
| Intake Air System | GO to PINPOINT TEST HU . |
| Charging System | REFER to the appropriate Charging System article and carry out the Inspection and Verification to continue diagnosis. |
| Universal Heated Oxygen Sensor (HO2S) (Edge, Escape, E-Series 4.6L, E-Series 5.4L, Expedition, Explorer, F-150, Fusion 2.5L, Fusion 3.0L, Flex, F-Series Super Duty, Mariner, Milan, MKS, MKT, MKX, Mustang, Navigator, and Taurus) | GO to PINPOINT TEST DZ . |
| Base Engine | REFER to the appropriate Engine System and carry out the Inspection and Verification to continue diagnosis. |
| Additional Testing | GO to PINPOINT TEST Z . |