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B3670 Chevrolet Code - Pump Motor Temperature Sensor Circuit

Quick Answer

The B3670 Chevrolet code refers to an issue with the Pump Motor Temperature Sensor Circuit in the vehicle. Common causes include Faulty pump motor temperature sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination affecting the sensor. 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
B3670 Chevrolet indicates Pump Motor Temperature Sensor Circuit.
Common causes
Common causes include Faulty pump motor temperature sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination affecting the sensor.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code B3670 Chevrolet Description

The B3670 Chevrolet code refers to an issue with the Pump Motor Temperature Sensor Circuit in the vehicle. This sensor is responsible for monitoring the temperature of the pump motor in the vehicle's system. The pump motor is crucial for various functions within the vehicle, such as the cooling system, power steering, and braking system. When this sensor circuit malfunctions, it can lead to a range of issues that can affect the overall performance and safety of the vehicle.

OBDII Code B3670 Chevrolet - Pump Motor Temperature Sensor Circuit
B3670 Chevrolet Code - Pump Motor Temperature Sensor Circuit

Common Causes of B3670 Chevrolet

  1. Faulty pump motor temperature sensor.
  2. Damaged wiring or connectors in the sensor circuit.
  3. Corrosion or contamination affecting the sensor.
  4. Electrical issues within the vehicle's computer system.
  5. Excessive heat or vibration affecting the sensor's performance.

Symptoms of B3670 Chevrolet

  1. Illumination of the check engine light on the dashboard.
  2. Inaccurate temperature readings on the vehicle's display.
  3. Loss of power steering assistance.
  4. Overheating of the pump motor.
  5. Unusual noises coming from the pump motor area.

How to Fix B3670 Chevrolet

  1. Begin by diagnosing the specific cause of the issue using a diagnostic scanner to retrieve the trouble codes and pinpoint the problem.
  2. Inspect the pump motor temperature sensor and its wiring for any visible damage or corrosion. Replace the sensor if necessary.
  3. Check the connections and wiring leading to the sensor to ensure they are secure and free of damage. Repair or replace any faulty wiring.
  4. Clear the trouble codes from the vehicle's computer system using the diagnostic scanner.
  5. Test drive the vehicle to ensure that the issue has been resolved and that the check engine light does not reappear.

Cost to Fix B3670 Chevrolet

The typical repair costs for addressing the B3670 Chevrolet code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of replacing a pump motor temperature sensor can range from $100 to $200, including parts and labor. Additional costs may be incurred if there are other underlying issues that need to be addressed. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your location and vehicle.

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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 B3670 Chevrolet Code

1. What are the common symptoms of OBDII code B3670 in a Chevrolet related to the Pump Motor Temperature Sensor Circuit?

- Common symptoms include illuminated Check Engine Light, poor fuel efficiency, rough engine performance, and potential issues with the vehicle's emissions system.

2. What are some possible causes of OBDII code B3670 in a Chevrolet?

- Potential causes include a faulty pump motor temperature sensor, damaged wiring or connectors in the sensor circuit, a malfunctioning pump motor, or issues with the engine control module.

3. How can I diagnose the Pump Motor Temperature Sensor Circuit issue related to OBDII code B3670 in my Chevrolet?

- You can diagnose the problem by using an OBDII scanner to retrieve the specific trouble code, inspecting the sensor and its wiring for any visible damage, and testing the sensor's resistance and voltage levels.

4. Are there any DIY repair tips for fixing the Pump Motor Temperature Sensor Circuit problem in a Chevrolet?

- DIY repair tips include checking and cleaning the sensor and its connectors, repairing any damaged wiring, replacing the sensor if necessary, and clearing the trouble code with an OBDII scanner.

5. Can driving with an unresolved OBDII code B3670 related to the Pump Motor Temperature Sensor Circuit cause further damage to my Chevrolet?

- Continuing to drive with this issue can potentially cause damage to other components in the vehicle's emissions system, reduce fuel efficiency, and lead to more severe engine performance problems over time.

6. How much does it typically cost to repair the Pump Motor Temperature Sensor Circuit problem in a Chevrolet triggering OBDII code B3670?

- The cost of repairing this issue can vary depending on the exact cause of the problem, but it may range from $100 to $300 for parts and labor at a dealership or auto repair shop.

7. Is it safe to drive my Chevrolet with the Check Engine Light on due to OBDII code B3670 related to the Pump Motor Temperature Sensor Circuit?

- While the vehicle may still be operable, it is recommended to address the issue promptly to prevent potential damage and ensure optimal performance and emissions compliance.

8. Can a faulty pump motor temperature sensor be repaired, or does it need to be replaced when dealing with OBDII code B3670 in a Chevrolet?

- In most cases, a faulty pump motor temperature sensor will need to be replaced rather than repaired to resolve the issue and clear the trouble code.

9. Are there any recalls or technical service bulletins related to OBDII code B3670 and the Pump Motor Temperature Sensor Circuit in Chevrolet vehicles?

- It's recommended to check with a Chevrolet dealership or visit the manufacturer's website to see if there are any relevant recalls or technical service bulletins for this specific issue in your vehicle model.

10. How can I prevent OBDII code B3670 from recurring in my Chevrolet after repairing the Pump Motor Temperature Sensor Circuit issue?

- To prevent the code from reoccurring, make sure to address any underlying causes, perform regular maintenance on the vehicle's emissions system, and promptly address any Check Engine Light warnings in the future.

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