[SOLVED] P3427 Code: Fix Low Voltage In Cylinder 4 Solenoid Valve

The P3427 fault code in automobiles indicates a problem with the Valve Lifter Oil Manifold Assembly. The most common symptom is the Engine Light turning on.

The cause of this issue could be low oil pressure, restricted oil passage, faulty valve lifter oil manifold assembly, or a poor electrical connection.

It is important to address this issue promptly as it can lead to engine damage. The repair difficulty is moderate, and the estimated repair time is around 1.0 hour.

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 due to the p3427 fault code.

Here are the symptoms to look out for:

  • The P3427 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.

P3427 fault code in automobiles can be caused by various factors, including low oil pressure and faulty valve lifter oil manifold assembly.

  • The automobile fault code P3427 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.
  • Lastly, a faulty Engine Control Module (ECM) can also be a reason for the P3427 fault code.

To fix the p3427 fault code, check the possible causes and inspect the wiring harness and connectors for any damage or corrosion.

  • To fix the automobile fault code p3427, 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 P3427 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 diagnosis and fixing the P3427 fault code will depend on the hourly rate charged by the repair shop and the estimated repair time required to fix the issue.

The P3427 code refers to the cylinder deactivation system in the engine. The Engine Control Module (ECM) commands the cylinder deactivation system ON to deactivate engine cylinders 1, 7, 6, and 4, switching to a V4 mode.

Cylinder deactivation is accomplished by not allowing the intake and exhaust valves to open on the selected cylinders by using special valve lifters.

The P3427 code indicates that there is a low voltage in the control circuit for the cylinder 4 deactivation solenoid valve. Switching between V8 and V4 modes is accomplished in less than 250 milliseconds, making the transitions seamless and transparent to the vehicle operator.

What are the possible causes of the P3427 automobile fault code?

If you’re experiencing the P3427 fault code, your engine light may be on. This could be due to low oil pressure, a restricted oil passage, a faulty valve lifter oil manifold assembly, or a poor electrical connection in the valve lifter oil manifold assembly circuit. To fix the issue, check the possible causes listed above, visually inspect the wiring harness and connectors, and look for damaged components or corroded connector pins.

How can I fix the P3427 automobile fault code?

If you’re experiencing the P3427 fault code, which is indicated by the engine light or service engine soon warning light turning on, there are a few possible causes to consider. These include 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 (ECM). To fix the issue, start by checking the possible causes listed above and visually inspecting the related wiring harness and connectors for any damage or corrosion.

What should I visually inspect to troubleshoot the P3427 automobile fault code?

If you’re troubleshooting the P3427 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.

p3427 error fault code explained

If you see the Engine Light ON or Service Engine Soon Warning Light, check for low oil pressure, restricted oil passage, faulty Valve Lifter Oil Manifold Assembly, or a faulty Engine Control Module (ECM). Visually inspect the wiring harness and connectors for damage or corrosion.

Check for broken, bent, pushed out, or corroded connector’s pins.

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