P1064 Jeep Code - Cylinder 4 Oil Supply Solenoid Valve Stuck
Quick Answer
Multi-Air is an electronically controlled variable intake valve phase and lift system. Common causes include Faulty Variable Valve Actuator (VVA) Solenoid, Variable Valve Actuator Solenoid harness is open or shorted, Variable Valve Actuator Solenoid circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- P1064 Jeep indicates Cylinder 4 Oil Supply Solenoid Valve Stuck.
- Common causes
- Common causes include Faulty Variable Valve Actuator (VVA) Solenoid, Variable Valve Actuator Solenoid harness is open or shorted, Variable Valve Actuator Solenoid circuit poor electrical connection.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Code P1064 Jeep Description
The Multi-Air valve train has a mechanical camshaft lobe acting on a hydraulic pump located between the camshaft intake lobe and the intake valve. The pump provides oil under pressure to a two-way electro-hydraulic solenoid valve called the Variable Valve Actuator (VVA) Solenoid. The VVA Solenoid is electronically controlled during the specific intake cam lobe event by the Powertrain Control Module (PCM). During the event, the VVA Solenoid is commanded to either hold oil pressure or bleed oil. The Variable Valve Actuator (VVA) Solenoid is a normally open solenoid. The PCM provides 12 volts to close the solenoid. The position of the VVA Solenoid determines the intake valve timing and lift. This change on valve action is similar to creating a change in the camshaft lobe profile affecting the lift and duration of the valve opening. The Diagnostic Trouble Code (DTC) will be set when the PCM monitors the feedback current and determines that the Variable Valve Actuator (VVA) Solenoid is stuck.
What are the Possible Causes of the DTC P1064 Jeep?
- Faulty Variable Valve Actuator (VVA) Solenoid
- Variable Valve Actuator Solenoid harness is open or shorted
- Variable Valve Actuator Solenoid circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P1064 Jeep?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1064 Jeep code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Need Help with the Code?
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Frequently Asked Questions about P1064 Jeep Code
1. What are the common symptoms of OBDII code P1064 in a Jeep related to the Cylinder 4 Oil Supply Solenoid Valve?
The common symptoms include rough engine idle, decreased fuel efficiency, engine misfires, and a noticeable decrease in engine performance.
2. What can cause the Cylinder 4 Oil Supply Solenoid Valve in a Jeep to get stuck?
The valve can get stuck due to oil sludge buildup, electrical issues, a faulty solenoid, or debris obstructing the valve's movement.
3. How serious is OBDII code P1064 in a Jeep if related to the Cylinder 4 Oil Supply Solenoid Valve?
This code should be addressed promptly as it can lead to engine damage if the oil supply to cylinder 4 is compromised, affecting the engine's performance and longevity.
4. Can I continue driving my Jeep with OBDII code P1064 related to the Cylinder 4 Oil Supply Solenoid Valve?
It is not recommended to drive the vehicle for an extended period with this code present, as it can lead to further engine issues and potential damage.
5. How can I diagnose OBDII code P1064 in my Jeep related to the Cylinder 4 Oil Supply Solenoid Valve?
Diagnosis typically involves inspecting the solenoid valve, checking for oil flow restrictions, testing the electrical connections, and using a scan tool to monitor the valve's operation.
6. What are some repair tips for fixing OBDII code P1064 associated with the Cylinder 4 Oil Supply Solenoid Valve in a Jeep?
Repair tips include cleaning the solenoid valve, replacing the valve if necessary, checking for oil sludge in the system, and ensuring proper electrical connections.
7. Is it possible to reset OBDII code P1064 related to the Cylinder 4 Oil Supply Solenoid Valve in a Jeep without fixing the underlying issue?
Resetting the code without fixing the issue will only temporarily clear the warning light, but the problem will persist and may lead to more severe engine issues in the future.
8. Will fixing OBDII code P1064 in a Jeep related to the Cylinder 4 Oil Supply Solenoid Valve improve fuel efficiency?
Yes, addressing this code and ensuring proper functioning of the solenoid valve can help improve fuel efficiency by allowing for optimal oil supply to the engine.
9. Can a DIY enthusiast repair OBDII code P1064 linked to the Cylinder 4 Oil Supply Solenoid Valve in a Jeep?
Depending on the individual's mechanical expertise, cleaning or replacing the solenoid valve could be a DIY repair, but it's recommended to consult a professional for accurate diagnosis and repair.
10. How much does it typically cost to repair OBDII code P1064 associated with the Cylinder 4 Oil Supply Solenoid Valve in a Jeep?
The cost of repair can vary depending on the extent of the issue, but it may range from $100 to $300 for parts and labor, excluding diagnostic fees.
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