P1346 GMC Code - Intake Camshaft Position Sensor System Performance
Quick Answer
The P1346 GMC diagnostic trouble code (DTC) refers to the Intake Camshaft Position Sensor System Performance. Common causes include Faulty intake camshaft position sensor, Wiring harness issues, Sensor alignment or installation problems. 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
- P1346 GMC indicates Intake Camshaft Position Sensor System Performance.
- Common causes
- Common causes include Faulty intake camshaft position sensor, Wiring harness issues, Sensor alignment or installation problems.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P1346 GMC Description
The P1346 GMC diagnostic trouble code (DTC) refers to the Intake Camshaft Position Sensor System Performance. This code indicates that there is an issue with the intake camshaft position sensor, which is responsible for monitoring the position of the camshaft in relation to the crankshaft. The camshaft position sensor plays a crucial role in the engine's operation by providing feedback to the engine control module (ECM) to ensure proper fuel delivery and ignition timing.
Common Causes of P1346 GMC
- Faulty intake camshaft position sensor
- Wiring harness issues
- Sensor alignment or installation problems
- Mechanical issues with the camshaft
- ECM software or hardware problems
Symptoms of P1346 GMC
- Rough idling or stalling
- Engine misfires
- Reduced fuel efficiency
- Check Engine Light illuminated
- Loss of power or acceleration
How to Fix P1346 GMC
- Diagnose the issue by using a scan tool to read the DTC and inspecting the intake camshaft position sensor and related components.
- Replace the faulty intake camshaft position sensor if it is determined to be the cause of the code.
- Check and repair any damaged wiring or connections associated with the sensor.
- Clear the DTC and perform a test drive to ensure the issue has been resolved.
- If the problem persists, further diagnostic testing may be necessary to pinpoint the exact cause of the performance issue.
Cost to Fix P1346 GMC
The cost of repairing the intake camshaft position sensor system performance issue can vary depending on the make and model of the vehicle, the location of the repair shop, and the extent of the problem. Typically, the cost of replacing the intake camshaft position sensor can range from $100 to $300, including parts and labor. Additional costs may apply if there are wiring or mechanical issues that need to be addressed. It is recommended to get a detailed quote from a qualified mechanic to get an accurate estimate for the repair.
When is the Code Detected?
Need more information about the P1346 GMC code?
Need more information on how to fix the P1346 GMC code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1346 GMC code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1346 GMC Code
1. What does the OBDII code P1346 mean on a GMC vehicle?
P1346 indicates a problem with the intake camshaft position sensor system performance, often related to timing or sensor issues.
2. What are the common symptoms of a P1346 code in a GMC vehicle?
Symptoms include rough idling, reduced engine performance, difficulty starting, and an illuminated check engine light.
3. What causes the P1346 code to appear in a GMC?
Common causes include a faulty camshaft position sensor, issues with the timing chain or belt, oil flow problems, or a malfunctioning variable valve timing (VVT) system.
4. Can low oil levels trigger the P1346 code in GMC vehicles?
Yes, low oil levels or contaminated oil can affect the VVT system's operation, potentially triggering the P1346 code.
5. How is the P1346 code diagnosed in a GMC?
A technician will use a scan tool to confirm the code, inspect the camshaft position sensor, check the timing components, and verify proper oil flow and pressure.
6. Can I drive my GMC with a P1346 code?
Driving with this code is not recommended, as it can lead to poor engine performance and potentially cause further damage to the engine.
7. How do you fix a P1346 code on a GMC?
Repairs may involve replacing the camshaft position sensor, addressing timing chain or belt issues, cleaning or replacing VVT components, or performing an oil change.
8. How much does it cost to repair a P1346 code on a GMC?
Repair costs can range from $150 to $1,000 or more, depending on whether the issue is with the sensor, timing components, or oil system.
9. Can a dirty camshaft position sensor cause the P1346 code?
Yes, a dirty or damaged camshaft position sensor can cause poor readings and trigger the P1346 code.
10. Will clearing the P1346 code fix the problem in a GMC?
Clearing the code will turn off the check engine light temporarily, but the underlying issue must be addressed to prevent the code from returning.
Discuss the causes and fixes for P1346 GMC OBDII Code
Code P1346 GMC comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.