Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer has detected a problem with the spark plug or wire for cylinder 10. It's like when a light bulb doesn't work because the wire is loose or broken.
The engine control module (ECM) monitors the ignition coil's electrical resistance. If it detects high resistance in the circuit for cylinder 10, it triggers this code.
The P3328 code indicates that the ECM has found an issue with the ignition coil circuit for cylinder 10, specifically high contact resistance or impedance. This can affect the ignition coil's ability to produce a spark, leading to misfires or inefficient combustion.
• Engine misfire
• Rough idle
• Reduced fuel efficiency
• Faulty ignition coil
• Corroded or damaged wiring/connectors
• Faulty spark plug
Ignition Coil: A component that transforms battery voltage into a high voltage to ignite the fuel-air mixture in the engine.
Impedance: The resistance of an electric circuit to the flow of alternating current.
• Use an OBD-II scanner to confirm the code.
• Inspect the ignition coil and wiring for cylinder 10.
• Check the spark plug for wear or damage.
• Replace the faulty ignition coil.
• Repair or replace damaged wiring/connectors.
• Replace the spark plug if necessary.
• OBD-II scanner
• Multimeter
• Socket set
$100 - $300
Moderate
• Chevrolet Silverado
• Ford F-150
• Dodge Ram
• Regularly inspect ignition components.
• Keep electrical connections clean and secure.
• Replace spark plugs at recommended intervals.
Engine Performance
• Do not ignore engine misfires as they can lead to more serious issues.
• Regular maintenance can prevent this issue.
Check with your vehicle's manufacturer for specific warranty coverage on ignition components.
Ignition coil issues have been a common problem in vehicles with high mileage or poor maintenance.
Moderate – Address the issue soon to prevent potential engine damage.
Driving with a misfire can increase emissions and may not be compliant with local emissions laws.
• Engine running
• Vehicle stationary
The ignition coil for cylinder 10 is typically located on the engine's cylinder head, near the spark plug.
Q: Can I drive with a P3328 code?
A: It's not recommended as it can lead to further engine damage.
Q: How do I know if my ignition coil is bad?
A: Symptoms include engine misfires, rough idling, and reduced fuel efficiency.
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Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
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Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
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Fitment Required · Vehicle-fitment part
Commonly relevant for misfire, ignition-efficiency, and some drivability-related repairs.
Misfire and ignition-related faults commonly involve spark plugs as part of the repair path.
Check the correct plug type, gap, and engine application for your vehicle.
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Fitment Required · Vehicle-fitment part
Relevant when the fault points toward ignition-coil performance or cylinder-specific ignition issues.
Some ignition faults involve coil performance or cylinder-specific coil problems.
Match the coil to your engine and confirm the failed component before ordering.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.