U0991 DTC For Ford Expedition 2
Ford Expedition 2 Engine Specifications:
| Engine Type : | Multi-Cylinder Engine |
| Cylinder Type : | W-Type Engine |
| Engine Air Intake Process : | Supercharged Engine |
Your Ford Expedition 2 engine control system detects a problem, the computer stores the diagnostic trouble
code U0991 in its memory.
To figure out what is wrong with your vehicle you must first extract the U0991 DTC For Ford Expedition 2.
On 1999 and later U0991 Ford Expedition 2 engines, the instrument cluster has a built-in self-diagnostic mode that can be accessed by pressing and holding the instrument cluster SELECT/RESET button. Insert the ignition key and turn to the RUN position (but don't crank or start engine). Continue to press and hold the SELECT/RESET button (for 5 seconds) until the word TEST is displayed by the odometer. Release the SELECT/RESET button within three seconds after the word TEST is displayed to begin the self-diagnostic mode.
U0991 Ford Expedition 2 DTC Meaning
| U |
Network Code - Problem is climate control system, lighting, airbags, etc. |
| 0 |
SAE - Generic |
| 9 |
Transmission |
| 9 |
TP Sensor Learn Not Complete |
| 1 |
PCM Stack Overrun |
There are currently two main types of cylinder deactivation used today, depending on the type of engine. U0991 Ford Expedition 2 code for the pushrod design which uses solenoids to alter the oil pressure delivered to the lifters. In their collapsed state, the lifters are unable to elevate their companion pushrods under the valve rocker arms, resulting in valves that cannot be actuated and remain closed.
You can also check other Ford car models :
|
The listed Ford models will give information about U0991 DTC.
|
