P133D 2018 GMC Sierra Code - Cylinder 6 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 6, Glow Plug 6 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
- P133D 2018 GMC Sierra indicates Cylinder 6 Glow Plug Offset Exceeded Learning Limit.
- Common causes
- Common causes include Perform Glow Plug Learn procedure, Faulty Glow Plug 6, Glow Plug 6 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 P133D 2018 GMC Sierra Description
What are the Possible Causes of the DTC P133D 2018 GMC Sierra?
- Perform Glow Plug Learn procedure
- Faulty Glow Plug 6
- Glow Plug 6 harness is open or shorted
- Glow Plug 6 circuit poor electrical connection
How to Fix the DTC P133D 2018 GMC Sierra?
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 P133D 2018 GMC Sierra 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.
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Frequently Asked Questions about P133D 2018 GMC Sierra Code
1. What are the common symptoms of OBDII code P133D in a 2018 GMC Sierra?
- Common symptoms include rough idling, decreased engine performance, and illuminated check engine light.
2. What does the OBDII code P133D "Cylinder 6 Glow Plug Offset Exceeded Learning Limit" mean in a 2018 GMC Sierra?
- The code indicates that the engine control module has detected an issue with the glow plug operation in cylinder 6.
3. What are the possible causes of OBDII code P133D in a 2018 GMC Sierra?
- Possible causes include a faulty glow plug, wiring issues, a defective glow plug control module, or a problem with the engine control module.
4. How can I diagnose OBDII code P133D in my 2018 GMC Sierra?
- Diagnosis typically involves checking the glow plug in cylinder 6, inspecting wiring for damage, testing the glow plug control module, and scanning the engine control module for error codes.
5. Can I continue driving my 2018 GMC Sierra with OBDII code P133D?
- It is not recommended to continue driving with this code present, as it can lead to further engine issues and potential damage if left unresolved.
6. How can I repair OBDII code P133D in my 2018 GMC Sierra?
- Repair may involve replacing the faulty glow plug, repairing damaged wiring, replacing the glow plug control module, or reprogramming the engine control module.
7. Will resetting the check engine light resolve OBDII code P133D in my 2018 GMC Sierra?
- Resetting the check engine light may temporarily clear the code, but it will return if the underlying issue is not addressed.
8. Is it safe to attempt DIY repairs for OBDII code P133D in a 2018 GMC Sierra?
- DIY repairs are possible for experienced individuals, but it is recommended to consult a professional mechanic for proper diagnosis and repair to ensure the issue is resolved correctly.
9. How much can I expect to pay for repairing OBDII code P133D in a 2018 GMC Sierra?
- The cost of repair can vary depending on the specific cause of the code, but it may range from $100 to $500 or more, including parts and labor.
10. Can regular maintenance help prevent OBDII code P133D in a 2018 GMC Sierra?
- Regular maintenance, such as checking and replacing glow plugs at recommended intervals, can help prevent issues that may trigger OBDII code P133D.
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