AutoCodes – GMC – P3072 GMC

P3072 GMC Code - Engine Coolant Pump High Speed

Quick Answer

The cooling system's function is to maintain an efficient engine operating temperature during all engine speeds and operating conditions. Common causes include Faulty Engine Coolant Pump, Engine Coolant Pump harness is open or shorted, Engine Coolant Pump circuit poor electrical connection. 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: P3072 GMC indicates Engine Coolant Pump High Speed.
Common causes: Common causes include Faulty Engine Coolant Pump, Engine Coolant Pump harness is open or shorted, Engine Coolant Pump circuit poor electrical connection.
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 Popularity 254

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 19, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P3072 GMC Description

The cooling system's function is to maintain an efficient engine operating temperature during all engine speeds and operating conditions. The cooling system is designed to remove various amounts of the heat produced by the burning of the air-fuel mixture. When the engine is cold, the coolant does not flow to the radiator until the thermostat opens. This allows the engine to warm up quickly. The Diagnostic Trouble Code (DTC) will be set when the Engine Coolant Pump Speed, both desired and actual are not within a calibrated range for greater than 10 s.

OBDII Code P3072 GMC - Engine Coolant Pump High Speed - AutoCodes.com — P3072 GMC Code - Engine Coolant Pump High Speed

What does this mean?

What are the Possible Causes of the DTC P3072 GMC?

Faulty Engine Coolant Pump
Engine Coolant Pump harness is open or shorted
Engine Coolant Pump circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P3072 GMC?

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 P3072 GMC 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.

Need more information about the P3072 GMC code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P3072 GMC Code

1. What does the OBDII code P3072 mean for a GMC vehicle?

P3072 indicates that the engine coolant pump is operating at high speed, which may be outside the expected range based on engine and cooling system conditions.

2. What are common symptoms of the P3072 code in GMC vehicles?

Symptoms may include engine overheating, reduced fuel efficiency, the check engine light being illuminated, and unusual noises from the coolant pump.

3. What causes the P3072 code to appear in a GMC vehicle?

Common causes include a faulty coolant pump, electrical issues such as wiring or connector problems, a malfunctioning coolant temperature sensor, or issues with the engine control module (ECM).

4. Can I drive my GMC vehicle with the P3072 code?

While the vehicle may still be drivable, it’s not recommended as overheating can cause serious engine damage if the issue isn’t resolved promptly.

5. How can I diagnose the P3072 code on my GMC?

Start by using an OBDII scanner to confirm the code, then inspect the coolant pump, wiring, and connectors for signs of damage or wear. Check the coolant level and temperature sensor functionality.

6. How do I fix the P3072 code on a GMC vehicle?

Repairs may include replacing the coolant pump, fixing damaged wiring or connectors, replacing the coolant temperature sensor, or updating/reprogramming the ECM.

7. How much does it cost to repair the P3072 code on a GMC vehicle?

Repair costs vary, but replacing a coolant pump can range from $400 to $800, while sensor or wiring repairs may be less expensive.

8. Can low coolant levels trigger the P3072 code?

Yes, low coolant levels can affect the pump's operation and lead to this code being triggered.

9. Does the P3072 code mean the coolant pump is completely broken?

Not necessarily. It could indicate an issue with the pump’s speed control, electrical connections, or other related components rather than complete failure.

10. Can a software update fix the P3072 code on GMC vehicles?

In some cases, a software update or ECM reprogramming may resolve the issue if the problem lies in the control system rather than mechanical components.