AutoCodes – Chevrolet – P133E 2018 Chevrolet Silverado

P133E 2018 Chevrolet Silverado Code - Cylinder 7 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 7, Glow Plug 7 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: P133E 2018 Chevrolet Silverado indicates Cylinder 7 Glow Plug Offset Exceeded Learning Limit.
Common causes: Common causes include Perform Glow Plug Learn procedure, Faulty Glow Plug 7, Glow Plug 7 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.

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Code Popularity 638

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 30, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P133E 2018 Chevrolet Silverado Description

The Glow Plug Control Module has not learned the glow plug offset values. If a glow plug has been replaced and the glow plug learn was not performed, or if the Glow Plug Control Module experiences an Electronically Erasable Programmable Read Only Memory (EEPROM) error or data corruption, this Diagnostic Trouble Code (DTC) to set. The DTC will be set if the glow plug hot resistance is outside a predefined threshold.

OBDII Code P133E 2018 Chevrolet Silverado - Cylinder 7 Glow Plug Offset Exceeded Learning Limit - AutoCodes.com — P133E 2018 Chevrolet Silverado Code - Cylinder 7 Glow Plug Offset Exceeded Learning Limit

What does this mean?

What are the Possible Causes of the DTC P133E 2018 Chevrolet Silverado?

Perform Glow Plug Learn procedure
Faulty Glow Plug 7
Glow Plug 7 harness is open or shorted
Glow Plug 7 circuit poor electrical connection

How to Fix the DTC P133E 2018 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.

What does this mean?

Code Tech Notes

If a Glow Plug was replaced, perform a Glow Plug Learn procedure with a Scan Tool.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P133E 2018 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.

Need more information about the P133E 2018 Chevrolet Silverado code?

Need more information on how to fix the P133E 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

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 P133E 2018 Chevrolet Silverado Code

1. What does the OBDII code P133E mean on a 2018 Chevrolet Silverado?

P133E indicates that the glow plug offset learning limit for Cylinder 7 has been exceeded, which suggests an issue with the glow plug system for that cylinder.

2. What are the common symptoms of code P133E?

Symptoms may include difficulty starting in cold weather, rough idling after startup, reduced engine performance, and the illumination of the check engine light.

3. What causes the P133E code on a 2018 Chevrolet Silverado?

Common causes include a faulty glow plug, damaged glow plug control module, poor electrical connections, or excessive carbon buildup in Cylinder 7.

4. Can I drive my Silverado with the P133E code?

While it may be safe to drive in mild weather, prolonged operation with this code can lead to starting issues, reduced performance, and potentially cause further engine damage if left unaddressed.

5. How do I diagnose the P133E code?

Diagnosis typically involves checking the glow plug for Cylinder 7, inspecting the wiring and connectors, testing the glow plug control module, and looking for carbon buildup.

6. How do I fix the P133E code on my Silverado?

Repairs may include replacing the faulty glow plug, cleaning excessive carbon buildup, repairing damaged wiring, or replacing a malfunctioning glow plug control module.

7. How much does it cost to repair the P133E code?

Repair costs can vary, but replacing a glow plug typically costs $100-$300, including parts and labor. More extensive repairs, like replacing the control module, can be more expensive.

8. Can a dirty glow plug cause the P133E code?

Yes, excessive carbon buildup on the glow plug or in the cylinder can cause the code by interfering with proper functioning.

9. Does the P133E code affect emissions?

Yes, a malfunctioning glow plug can lead to incomplete combustion, increasing emissions and potentially causing the vehicle to fail an emissions test.

10. Can resetting the code fix the P133E issue?

Simply clearing the code without addressing the underlying issue will not fix the problem, and the code is likely to return. Proper diagnosis and repair are necessary.