P133A GMC Code - Cylinder 3 Glow Plug Offset Exceeded Learning Limit
Quick Answer
The Glow Plug Control Module has not learned the glow plug offset values. Common causes include Perform Glow Plug Learn procedure, Faulty Glow Plug 3, Glow Plug 3 harness is open or shorted. 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
- P133A GMC indicates Cylinder 3 Glow Plug Offset Exceeded Learning Limit.
- Common causes
- Common causes include Perform Glow Plug Learn procedure, Faulty Glow Plug 3, Glow Plug 3 harness is open or shorted.
- 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.
Code P133A GMC Description
What are the Possible Causes of the DTC P133A GMC?
- Perform Glow Plug Learn procedure
- Faulty Glow Plug 3
- Glow Plug 3 harness is open or shorted
- Glow Plug 3 circuit poor electrical connection
How to Fix the DTC P133A 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P133A 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 P133A GMC code?
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Information for Specific GMC Models
- P133A 2014 GMC Sierra — Cylinder 3 Glow Plug Offset Exceeded Learning Limit
- P133A 2015 GMC Sierra — Cylinder 3 Glow Plug Offset Exceeded Learning Limit
- P133A 2016 GMC Sierra — Cylinder 3 Glow Plug Offset Exceeded Learning Limit
- P133A 2017 GMC Sierra — Cylinder 3 Glow Plug Offset Exceeded Learning Limit
- P133A 2018 GMC Sierra — Cylinder 3 Glow Plug Offset Exceeded Learning Limit
Frequently Asked Questions about P133A GMC Code
1. What are the common symptoms of OBDII code P133A GMC?
- Common symptoms include rough idling, engine misfires, loss of power, and the Check Engine light being illuminated.
2. What does the OBDII code P133A GMC - Cylinder 3 Glow Plug Offset Exceeded Learning Limit mean?
- This code indicates that the offset for the glow plug in cylinder 3 has exceeded the learning limit set by the vehicle's computer.
3. What are the possible causes of OBDII code P133A GMC?
- Possible causes include a faulty glow plug, issues with the glow plug control module, wiring problems, or a problem with the engine control module (ECM).
4. How can I diagnose the OBDII code P133A GMC?
- Diagnosis typically involves inspecting the glow plug in cylinder 3, checking the glow plug control module, testing the wiring for continuity, and scanning the ECM for related error codes.
5. Can I continue driving with OBDII code P133A GMC active?
- It is not recommended to continue driving with this code active, as it can lead to further engine damage and decreased performance.
6. How can I repair OBDII code P133A GMC?
- Repair options may include replacing the faulty glow plug, addressing wiring issues, replacing the glow plug control module, or reprogramming the ECM.
7. Are there any tips for preventing OBDII code P133A GMC from recurring?
- Regular maintenance, such as checking and replacing glow plugs as needed, can help prevent this code from recurring.
8. Is OBDII code P133A GMC a common issue in GMC vehicles?
- While not extremely common, this code can occur in GMC vehicles with glow plug systems, especially in colder climates.
9. Can a DIY enthusiast fix OBDII code P133A GMC?
- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to address this code by following repair guides and procedures.
10. How much does it typically cost to repair OBDII code P133A GMC at a mechanic or dealership?
- Repair costs can vary depending on the exact cause of the issue, but it may range from $200 to $500 or more, including parts and labor.
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