P148E 2019 GMC Sierra Code - EVAP Purge Pump Voltage Sensor Low Voltage
Quick Answer
Purge capacity is being reduced by technologies that improve fuel economy. Common causes include Faulty Evaporative Emission Purge Pump, Evaporative Emission Purge Pump harness is open or shorted, Evaporative Emission Purge Pump circuit poor electrical connection. 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
- P148E 2019 GMC Sierra indicates EVAP Purge Pump Voltage Sensor Low Voltage.
- Common causes
- Common causes include Faulty Evaporative Emission Purge Pump, Evaporative Emission Purge Pump harness is open or shorted, Evaporative Emission Purge Pump circuit poor electrical connection.
- 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 P148E 2019 GMC Sierra Description
What are the Possible Causes of the DTC P148E 2019 GMC Sierra?
- Faulty Evaporative Emission Purge Pump
- Evaporative Emission Purge Pump harness is open or shorted
- Evaporative Emission Purge Pump circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P148E 2019 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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P148E 2019 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.
Need more information about the P148E 2019 GMC Sierra code?
Need more information on how to fix the P148E 2019 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P148E 2019 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P148E 2019 GMC Sierra Code
What does the OBDII code P148E mean on a 2019 GMC Sierra?
1. P148E indicates an issue with the EVAP purge pump voltage sensor, specifically low voltage being detected by the Engine Control Module (ECM). 2.
What are the common symptoms of code P148E in a 2019 GMC Sierra?
Common symptoms include an illuminated check engine light, potential fuel odor, reduced fuel efficiency, and difficulty passing emissions tests. 3.
What causes the P148E code to be triggered?
The code is typically caused by a faulty EVAP purge pump, a damaged or corroded electrical connector, wiring issues, or a malfunctioning ECM. 4.
Can a loose gas cap trigger the P148E code?
No, a loose gas cap is more likely to cause an EVAP system leak code, such as P0455 or P0442, rather than P148E. 5.
How can I diagnose the P148E code on my 2019 GMC Sierra?
Start by inspecting the EVAP purge pump and its wiring for damage or corrosion. Use a multimeter to check the voltage at the purge pump sensor and compare it to manufacturer specifications. 6.
Is it safe to drive with the P148E code active?
While the vehicle is usually drivable, ignoring the code can lead to increased emissions and potential fuel system issues over time. 7.
How do you fix the P148E code on a 2019 GMC Sierra?
Repairs may involve replacing the EVAP purge pump, repairing damaged wiring or connectors, or updating/reprogramming the ECM if needed. 8.
How much does it cost to repair a P148E code?
The repair cost can range from $100 to $500, depending on whether the EVAP purge pump, wiring, or ECM needs replacement or repair. 9.
Can a dead battery or weak alternator cause the P148E code?
While unlikely, a weak electrical system could contribute to low voltage issues. Check the battery and alternator as part of the diagnostic process. 10.
Will clearing the P148E code fix the problem?
Clearing the code may turn off the check engine light temporarily, but the underlying issue must be repaired to prevent the code from returning.
Discuss the causes and fixes for P148E 2019 GMC Sierra OBDII Code
Code P148E 2019 GMC Sierra 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.
