Lincoln Navigator P0748 Engine Error Code
When you check Lincoln Navigator car engine light came on code P0748 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Lincoln manufacturer may have a different definition for the P0748 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

On 1999 and later P0748 Lincoln Navigator 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.
![]() |
Lincoln Navigator P0748 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionLincoln Navigator car P0748 OBD-II Trouble Code The line pressure solenoid valve A regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM).Reason For Lincoln Navigator P0748 CodeThe reason of Lincoln Navigator P0748 OBD-II Engine Error Code is P0748 Pressure Control Solenoid A Electrical. |
There are currently two main types of cylinder deactivation used today, depending on the type of engine. P0748 Lincoln Navigator 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.
Lincoln Navigator P0748 Possible Solution :
In-line Ford engines, along with those of most other manufacturers, begin the numbering of cylinders at the front and proceed in numerical order toward the back. In the V-engine design, Ford follows a similar design with the number one cylinder at the front left of the engine. In the V-6 configuration, cylinder 4 is at the front right of the engine and in a V-8, cylinder number 5 is in that location. Other manufacturers sometimes use an alternating pattern in the V-engines.
What does fault code P0748 mean for Lincoln Navigator ?
|