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Gmc Yukon Xl 2500 U0138 Engine Error Code

When you check Gmc Yukon Xl 2500 car engine light came on code U0138 the reason should be . However Gmc manufacturer may have a different definition for the U0138 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U0138 Gmc Yukon Xl 2500 Code Clear

On 1999 and later U0138 Gmc Yukon Xl 2500 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.

U0138 Code Reason

Gmc Yukon Xl 2500 U0138 OBD-II Diagnostic Network (U) Trouble Code Description

so you have to check ODB-II Engine Error Code list.

Reason For Gmc Yukon Xl 2500 U0138 Code

The reason of Gmc Yukon Xl 2500 U0138 OBD-II Engine Error Code is .

There are currently two main types of cylinder deactivation used today, depending on the type of engine. U0138 Gmc Yukon Xl 2500 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.

Gmc Yukon Xl 2500 U0138 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.

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