P3428 Chrysler Code - Cylinder 4 Deactivation Control Circuit High
Quick Answer
The P3428 Chrysler code indicates an issue with the Cylinder 4 Deactivation Control Circuit being too high. Common causes include Faulty cylinder deactivation solenoid, Wiring issues or shorts in the control circuit, Malfunctioning engine control module (ECM). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P3428 Chrysler indicates Cylinder 4 Deactivation Control Circuit High.
- Common causes
- Common causes include Faulty cylinder deactivation solenoid, Wiring issues or shorts in the control circuit, Malfunctioning engine control module (ECM).
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P3428 Chrysler Description
The P3428 Chrysler code indicates an issue with the Cylinder 4 Deactivation Control Circuit being too high. In modern engines, cylinder deactivation is a technology used to improve fuel efficiency by shutting down specific cylinders when they are not needed, such as during cruising or low-load conditions. This code specifically relates to cylinder 4, indicating that there is a problem with the circuit responsible for activating and deactivating this cylinder.
Common Causes of P3428 Chrysler
- Faulty cylinder deactivation solenoid
- Wiring issues or shorts in the control circuit
- Malfunctioning engine control module (ECM)
- Low engine oil levels or poor oil quality
- Mechanical issues with cylinder 4, such as low compression or valve problems
Symptoms of P3428 Chrysler
- Rough idle or misfiring
- Decreased power and acceleration
- Poor fuel efficiency
- Illuminated check engine light
- Engine going into "limp mode"
How to Fix P3428 Chrysler
- Perform a comprehensive diagnostic scan to confirm the P3428 code and identify the specific cause.
- Inspect the cylinder deactivation solenoid for proper operation and replace if necessary.
- Check the wiring harness and connectors for any damage or corrosion, repairing or replacing as needed.
- Test the engine control module (ECM) for proper function and reprogram or replace if a fault is detected.
- Verify that cylinder 4 is operating correctly, addressing any mechanical issues that may be causing the code.
Cost to Fix P3428 Chrysler
The typical repair costs for addressing the P3428 Chrysler code can range from $200 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.
Tech Notes for P3428 Chrysler
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