P133F 2015 Chevrolet Silverado Code - Cylinder 8 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 8, Glow Plug 8 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
- P133F 2015 Chevrolet Silverado indicates Cylinder 8 Glow Plug Offset Exceeded Learning Limit.
- Common causes
- Common causes include Perform Glow Plug Learn procedure, Faulty Glow Plug 8, Glow Plug 8 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 P133F 2015 Chevrolet Silverado Description
What are the Possible Causes of the DTC P133F 2015 Chevrolet Silverado?
- Perform Glow Plug Learn procedure
- Faulty Glow Plug 8
- Glow Plug 8 harness is open or shorted
- Glow Plug 8 circuit poor electrical connection
How to Fix the DTC P133F 2015 Chevrolet Silverado?
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 P133F 2015 Chevrolet Silverado 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 P133F 2015 Chevrolet Silverado Code
What does the OBDII code P133F mean on a 2015 Chevrolet Silverado?
1. P133F indicates that the Cylinder 8 Glow Plug Offset has exceeded its learning limit, meaning the engine control module (ECM) has detected an issue with the glow plug calibration for cylinder 8. 2.
What are the common symptoms of the P133F code?
Common symptoms include difficulty starting the engine in cold weather, reduced engine performance, a check engine light, and possibly rough idling or misfiring. 3.
What causes the P133F code to be triggered?
This code can be caused by a faulty glow plug in cylinder 8, issues with the glow plug control module, poor electrical connections, carbon buildup affecting glow plug performance, or an ECM calibration issue. 4.
How is the P133F code diagnosed?
A technician will use a diagnostic scanner to confirm the code, inspect the glow plug and its circuit, test the glow plug’s resistance, and check for any wiring or connection issues. 5.
Can I drive my truck with the P133F code?
Yes, but it’s not recommended for extended periods. The P133F code can lead to hard starts in cold weather, reduced engine efficiency, and further damage if not addressed. 6.
How do I fix the P133F code?
Repairs may include replacing the cylinder 8 glow plug, cleaning carbon buildup, repairing damaged wiring, or reprogramming the ECM if there’s a calibration issue. 7.
How much does it cost to fix the P133F code?
The repair cost can range from $100 to $300, depending on whether the glow plug or wiring needs replacement and if ECM recalibration is required. 8.
Can I clear the P133F code without fixing it?
Clearing the code without addressing the underlying issue will only temporarily turn off the check engine light. The code will reappear if the problem persists. 9.
What tools are needed to fix the P133F code?
You’ll need a diagnostic scanner, a multimeter for electrical testing, basic hand tools for glow plug replacement, and possibly software to reprogram the ECM. 10.
What happens if the P133F code is ignored?
Ignoring this code can lead to poor cold-weather performance, reduced fuel efficiency, and potential damage to the engine or other components over time.
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