[SOLVED] P3426 Code: Fixing Cylinder 4 Deactivation Solenoid Valve Control

The P3426 fault code in automobiles indicates a problem with the valve lifter oil manifold assembly.

This can be caused by low oil pressure, restricted oil passage, faulty assembly, or poor electrical connection. The most common symptom is the engine light turning on. It is important to address this issue promptly as it can lead to engine damage.

The repair difficulty is moderate, with a repair time of 1.0.

To fix the issue, one should visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

If you notice the Engine Light ON (or Service Engine Soon Warning Light), it could be a sign of p3426 fault code.

Here are the symptoms to look out for:

  • The P3426 fault code in an automobile can cause several symptoms, including the engine light turning on or the service engine soon warning light appearing.
  • Other symptoms may include a decrease in engine power, rough idling, engine stalling, and poor acceleration.
  • Additionally, the vehicle may experience misfires, reduced fuel efficiency, and difficulty starting.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle.

The automobile fault code P3426 can be caused by various factors, including low oil pressure and faulty valve lifter oil manifold assembly.

  • The automobile fault code P3426 can be caused by low oil pressure.
  • It can also be caused by a restricted oil passage.
  • Another cause of this fault code is a faulty Valve Lifter Oil Manifold Assembly.
  • An open or shorted Valve Lifter Oil Manifold Assembly harness can also trigger this code.
  • A poor electrical connection in the Valve Lifter Oil Manifold Assembly circuit can also be a cause.
  • Finally, a faulty Engine Control Module (ECM) can also be responsible for the P3426 fault code.

To fix the p3426 automobile fault code, check the possible causes and inspect related components for damage or corrosion.

  • To fix the automobile fault code p3426, first, check the possible causes listed above.
  • Then, visually inspect the related wiring harness and connectors.
  • Look for any damaged components and check for broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The automobile fault code P3426 can be diagnosed and fixed within an estimated repair time of 1.0 hour. The cost of repair is influenced by the repair time, which is commonly charged between $75 and $150 per hour by most auto repair shops. Therefore, the total cost of fixing the P3426 fault code will depend on the hourly rate charged by the repair shop and the estimated repair time required to fix the issue.

The P3426 code refers to the cylinder deactivation system in the engine. The Engine Control Module (ECM) commands the system to deactivate cylinders 1, 7, 6, and 4 to switch to V4 mode for maximum fuel economy. The deactivation is achieved by not allowing the intake and exhaust valves to open on the selected cylinders using special valve lifters.

The deactivation solenoid valve control performance for cylinder 4 is being monitored by the ECM. Switching between V8 and V4 modes is seamless and takes less than 250 milliseconds.

What are the possible causes of the P3426 automobile fault code?

If you’re experiencing the P3426 fault code, you may notice that your engine light is on. This code can be caused by a variety of issues, including low oil pressure, a restricted oil passage, a faulty valve lifter oil manifold assembly, an open or shorted valve lifter oil manifold assembly harness, a poor electrical connection in the valve lifter oil manifold assembly circuit, or a faulty engine control module. To fix the issue, it’s important to visually inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

How can I fix the P3426 automobile fault code?

If you’re experiencing the P3426 fault code, which is indicated by the engine light or service engine soon warning light, there are a few possible causes to consider. These include low oil pressure, restricted oil passage, a faulty valve lifter oil manifold assembly, an open or shorted valve lifter oil manifold assembly harness, poor electrical connection in the valve lifter oil manifold assembly circuit, or a faulty engine control module (ECM). To fix the issue, inspect the related wiring harness and connectors for damage, broken, bent, pushed out, or corroded connector pins.

What should I visually inspect to troubleshoot the P3426 automobile fault code?

If you’re troubleshooting the P3426 automobile fault code, start by checking for an illuminated Engine Light or Service Engine Soon Warning Light. The possible causes include low oil pressure, restricted oil passage, a faulty Valve Lifter Oil Manifold Assembly, an open or shorted Valve Lifter Oil Manifold Assembly harness, a poor electrical connection in the Valve Lifter Oil Manifold Assembly circuit, or a faulty Engine Control Module (ECM). To fix the issue, visually inspect the related wiring harness and connectors, checking for damaged components and broken, bent, pushed out, or corroded connector pins.

p3426 error fault code explained

If your engine light is on, it could be due to low oil pressure, restricted oil passage, or a faulty valve lifter oil manifold assembly.

Check the possible causes listed above, visually inspect the wiring harness and connectors, and look for damaged components or corroded pins.

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