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Code P067D

Quick reference

P067D at a glance

Plain-language meaning
This code means that the computer in your car detected that the electrical circuit for the glow plug in cylinder 5 is getting too much power.
Urgency
Moderate – While the vehicle may still run, it could have starting issues in cold weather.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
Multimeter, Socket set, Screwdriver set

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means that the computer in your car detected that the electrical circuit for the glow plug in cylinder 5 is getting too much power.

Explanation

The vehicle's engine control module (ECM) monitors the glow plug circuit for each cylinder. If it detects that the voltage or current is too high for the glow plug in cylinder 5, it triggers the P067D code.

Technical description

The P067D code indicates that the glow plug control circuit for cylinder 5 is experiencing a higher than expected voltage. This could be due to a short circuit, faulty glow plug, or an issue with the glow plug control module.

Symptoms

• Engine hard to start in cold weather

• Check engine light illuminated

• Rough idle when cold

Common Causes

• Faulty glow plug in cylinder 5

• Short circuit in the glow plug wiring

• Faulty glow plug control module

Glossary

Glow Plug: A device used to heat the air in a diesel engine to help start the engine.

ECM: Engine Control Module, the computer that controls engine functions.

Diagnosis steps

• Perform a visual inspection of the glow plug and wiring for cylinder 5.

• Use a multimeter to test the resistance of the glow plug.

• Check the voltage supply to the glow plug control module.

Repair procedures

• Replace the faulty glow plug.

• Repair or replace damaged wiring.

• Replace the glow plug control module if necessary.

Tools required

• Multimeter

• Socket set

• Screwdriver set

Estimated repair cost

$100 - $300

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-250

• Chevrolet Silverado

• Dodge Ram

Preventive measures

• Regularly inspect glow plug connections.

• Ensure proper maintenance of electrical systems.

• Use quality replacement parts.

Error code type

Sensor Issue

User experience recommendations

• Have your vehicle inspected by a professional mechanic.

• Avoid using the vehicle in extremely cold conditions until repaired.

Warranty information

Glow plugs may be covered under the powertrain warranty. Check with your vehicle manufacturer.

Historical data

Glow plug issues are common in diesel engines, especially in colder climates where they are used more frequently.

Urgency level

Moderate – While the vehicle may still run, it could have starting issues in cold weather.

Testing conditions

• Engine cold start

• Ambient temperature below 40°F

Component location

The glow plug for cylinder 5 is located on the engine block, typically near the intake manifold.

FAQs

Q: Can I drive with a P067D code?
A: You can drive, but it may be difficult to start the engine in cold weather.

Q: How do I know if a glow plug is bad?
A: Symptoms include difficulty starting the engine, especially in cold weather, and a rough idle.

Optional diagnostic gear

Tools that may help diagnose P067D

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

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Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

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.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring 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.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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