Jeep owners who have encountered the code P105C may be feeling the frustration of trying to diagnose and find the cause of the issue. This code indicates that the Intake Valve is stuck in the low lift position, and if left unresolved, it can lead to more problems for the engine. To help Jeep owners better understand the cause and possible solutions to this problem, this article will outline the Variable Valve Lift (VVL) Solenoids, the cylinder control they provide, and the potential causes and solutions to the P105C code. Using the keyword, Jeep owners can gain a better understanding of the P105C code, the potential causes, and the necessary solutions to the problem.
Causes and Solutions of Jeep Code P105C
| Cause | Solution |
|---|---|
| VVL SOLENOID STUCK OPEN ALLOWING OIL PRESSURE TO ONE OR MORE ROCKER ARM | Replace the VVL Solenoid |
| ROCKER ARM LOCK PIN BROKEN/MISSING | Reinstall the Rocker Arm Lock Pin |
| ROCKER ARM IMPROPERLY INSTALLED/INCORRECT CLEARANCE BETWEEN A ROCKER ARM AND THE HIGH LIFT (CENTER) CAMSHAFT LOBE | Check the clearance between the Rocker Arm and High Lift Camshaft Lobe |
| EXCESSIVE WEAR ON A HIGH LIFT (CENTER) CAMSHAFT LOBE | Replace the High Lift Camshaft Lobe |
| WORN ROCKER ARM | Replace the Rocker Arm |
Variable Valve Lift (VVL) Solenoids
The Variable Valve Lift (VVL) Solenoids are responsible for controlling the amount of oil pressure that is applied to the rocker arms. The rocker arms are what open and close the intake valves, and the VVL Solenoids ensure that they do so at the correct times. Without the VVL Solenoids properly controlling the oil pressure, the Intake Valves can become stuck in the low lift position, which is the cause of the P105C code.
Rocker Arm Lock Pin
The rocker arm lock pin is an important part of the engine’s valvetrain, and if it is broken or missing, it can lead to the P105C code. Without the lock pin, the rocker arms can become misaligned, resulting in the Intake Valves being stuck in the low lift position.
Rocker Arm and Camshaft Lobe
It is also possible for the P105C code to be caused by an improper installation or incorrect clearance between the rocker arm and the high lift camshaft lobe. If the gap between the two components is too large, it can cause the Intake Valves to become stuck in the low lift position.
Excessive Wear on a High Lift Camshaft Lobe
In some cases, the P105C code may be caused by excessive wear on the high lift camshaft lobe. If the lobe is excessively worn, it can cause the Intake Valves to become stuck in the low lift position.
Worn Rocker Arm
The P105C code can also be caused by a worn rocker arm. If the rocker arm is worn, it can cause the Intake Valves to become stuck in the low lift position.
Conclusion
The Jeep code P105C can be caused by a number of different issues, ranging from VVL Solenoid problems to worn rocker arms. To help Jeep owners better understand the cause and potential solutions to the P105C code, this article has outlined the Variable Valve Lift (VVL) Solenoids, the cylinder control they provide, and the potential causes and solutions to the P105C code. By understanding the causes and solutions to Jeep Code P105C, Jeep owners can better diagnose and address the issue before it leads to more serious engine problems.
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