AutoCodesGMC – P1349 GMC

P1349 GMC Code - Intake Camshaft Position System Conditions

Quick Answer

With the engine running the Engine Coolant Temperature (ECT) sensor input more than 158°F, VSS input over 5 mph, then the PCM did not detect a change in camshaft timing with the CMP Actuator active, or the PCM detected that the camshaft timing was fixed, either condition met for 20 seconds. Common causes include Faulty Intake Camshaft Position Sensor, Intake Camshaft Position Sensor harness is open or shorted, Intake Camshaft Position Sensor 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
P1349 GMC indicates Intake Camshaft Position System Conditions.
Common causes
Common causes include Faulty Intake Camshaft Position Sensor, Intake Camshaft Position Sensor harness is open or shorted, Intake Camshaft Position Sensor 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 2,072
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 17, 2019
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Code P1349 GMC Description

With the engine running the Engine Coolant Temperature (ECT) sensor input more than 158°F, VSS input over 5 mph, then the PCM did not detect a change in camshaft timing with the CMP Actuator active, or the PCM detected that the camshaft timing was fixed, either condition met for 20 seconds.
OBDII Code P1349 GMC - Intake Camshaft Position System Conditions - AutoCodes.com
P1349 GMC Code - Intake Camshaft Position System Conditions

What are the Possible Causes of the DTC P1349 GMC?

  • Faulty Intake Camshaft Position Sensor
  • Intake Camshaft Position Sensor harness is open or shorted
  • Intake Camshaft Position Sensor circuit poor electrical connection

How to Fix the DTC P1349 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 P1349 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 P1349 GMC code?

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Need Help with the 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 P1349 GMC Code

1. What does OBDII code P1349 mean for GMC vehicles?

P1349 indicates an issue with the intake camshaft position system, often related to timing or variable valve timing (VVT) performance.

2. What are common symptoms of the P1349 code in a GMC?

Symptoms may include rough idling, reduced engine performance, poor fuel economy, engine hesitation, or an illuminated Check Engine Light.

3. What causes the P1349 code to appear on a GMC?

Common causes include a faulty camshaft position actuator, low or dirty engine oil, a malfunctioning camshaft position sensor, or a timing issue.

4. Can dirty engine oil trigger the P1349 code on a GMC?

Yes, dirty or low engine oil can interfere with the variable valve timing system, leading to the P1349 code.

5. How is the P1349 code diagnosed on a GMC?

A technician will use a scan tool to confirm the code, inspect the camshaft position sensor, check the oil level and condition, and test the camshaft actuator's functionality.

6. Can I drive my GMC with the P1349 code active?

Driving with this code is not recommended, as it can lead to engine performance issues or further damage if not addressed promptly.

7. How do you fix the P1349 code on a GMC vehicle?

Repairs may involve replacing the camshaft position actuator or sensor, performing an oil change, or addressing timing chain or belt issues.

8. Is the P1349 code specific to GMC vehicles?

No, the code can appear on other makes and models, but the exact diagnosis and repair steps may vary by vehicle.

9. How much does it typically cost to fix the P1349 code on a GMC?

Repair costs can range from $100 to $500 or more, depending on whether the issue involves a simple oil change or replacement of components like the camshaft actuator.

10. Can a faulty camshaft position sensor alone cause the P1349 code?

Yes, a malfunctioning camshaft position sensor can cause incorrect readings, triggering the P1349 code.

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