NHTSA ID Number: 10205596
Manufacturer Communication Number: 21NA280
Summary
This service bulletin provides diagnostic repair information for customer concerns of Engine Run-On, Rough Running, Malfunction Indicator Lamp (MIL) Illuminated.
32 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
BUICK | LACROSSE | 2010-2012 |
| BUICK | REGAL | 2011 |
| BUICK | VERANO | 2012-2017 |
| CHEVROLET | CAPTIVA | 2012-2016 |
| CHEVROLET | CAPTIVA SPORT | 2012 |
| CHEVROLET | EQUINOX | 2010-2017 |
| GMC | TERRAIN | 2010-2017 |
Condition
Some customers may comment on one or more of the following conditions:
- Engine run-on
- Rough idle
- MIL illuminated
Technicians may find DTC P0172 set in the Engine Control Module (ECM).
Cause
This condition may be caused by fuel contamination in the crankcase.
– This may be a result of the high pressure fuel pump leaking fuel into the crankcase when the plunger is depressed.
Correction
If this concern is encountered, perform SI diagnosis and repair as necessary.
- If SI diagnosis does not isolate the cause of this concern, check the low side fuel pressure leakdown with a mechanical gauge as outlined in SI Fuel System Diagnosis.
- If fuel pressure leakdown is present with the J-37287 Fuel Line Shut-off Adapter installed and closed, follow the SI Fuel Pump Replacement Procedure to replace the high pressure fuel pump.
Also change the engine oil and filter to complete the repairs.
SEOCONTENT-START
Service Bulletin Bulletin No.: 21-NA-280
Date: December, 2021
INFORMATION
Subject: Information on Engine Run-On, Rough Running, Malfunction Indicator Lamp (MIL)
Illuminated – DTC P0172 Set
This bulletin replaces PIP4783B. Please discard PIP4783B.
Brand: Model:
Model Year: VIN:
Engine: Transmission:
from to from to
Buick
LaCrosse 2010 2012
— —
2.4L (LAF, LEA)
—
Regal 2011 2011 2.4L (LAF)
Verano 2012 2017 2.4L (LEA)
Chevrolet
Captiva 2012 2016 2.4L (LAF, LEA)
Equinox 2010 2017 2.4L (LAF, LEA)
GMC Terrain 2010 2017 2.4L (LAF, LEA)
Involved Region or Country North America
Condition
Some customers may comment on one or more of the following conditions:
• Engine run-on
• Rough idle
• MIL illuminated
Technicians may find DTC P0172 set in the Engine Control Module (ECM).
Cause
This condition may be caused by fuel contamination in the crankcase.
– This may be a result of the high pressure fuel pump leaking fuel into the crankcase
when the plunger is depressed.
Correction
If this concern is encountered, perform SI diagnosis and repair as necessary.
• If SI diagnosis does not isolate the cause of this concern, check the low side fuel
pressure leakdown with a mechanical gauge as outlined in SI Fuel System Diagnosis.
• If fuel pressure leakdown is present with the J-37287 Fuel Line Shut-off Adapter
installed and closed, follow the SI Fuel Pump Replacement Procedure to replace the
high pressure fuel pump.
Also change the engine oil and filter to complete the repairs.
Version 1
Modified Released November 29, 2021
SEOCONTENT-END
1 Associated Document
Manufacturer Communications
Bulletin No.: 21-NA-280
Date: December, 2021
NHTSA ID Number: 10173721
Manufacturer Communication Number: PIP4783B
Summary
This Prelimary information informs the dealer of a diagnotic trouble code that may set due to a failed high pressure fuel pump. Dealers are to check fuel pressure as per current testing outlined in GM service information and replace the fuel pump if needed.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP4783B
Published date: 03/25/2020
- Compatibility Note: For further confirmation of specific model compatibility, refer to the vehicle owner's manual or contact a professional technician. Excludes Fo/rd, K/I/A, Bo/s/ch, C/I/S Je/tro/nic, G//M Th/rot/tle Bo/dy Systems, A/cu/ra, J/ee/p, B/M/W, Ni/s/san, and To/yo/ta fuel systems. Not compatible with small/non/standard S/chra/der vallves, high/pre/ssure direct in/ject/ed engines, or die//sel injection pumps. Verify your vehicle’s vallve size and pressure specs before purchase
- Wide Compatibility: This fuel pressure tester kit comes with multiple adapters for most gasoline engines in trucks, cars, motorcycles and RVs. But not compatible with diesel high - pressure injection pumps or direct injection engines
- Accurate Testing: The fuel pressure tester features high - precision sensors for accurate measurement of fuel system pressure changes. Measures range 0-140PSI/ 0-10bar dual color coded scale to diagnose fuel supply and injection issues
- Multipurpose Use: The 8 inches hose fits all M6 fuel pressure test ports. The 15 inches hose connects snugly to any 1/4" standard schrader valve. The M8, M10, M12, and M14 adapters make sure this tool kit can be used on most cars and vehicles
- Corrosion Resistance: Crafted from high - strength materials, the fuel pressure tester offers excellent corrosion and impact resistance. It ensures long - term stability and reliability even in harsh working conditions
- Universal Design: The included adapters, hoses and fittings cover most fuel injection systems and Gas Engine Cars, Motorcycles, Trucks, SUVs, ATVs, UTVs, RVs. (Does not compatible with Bosch, CIS Jetronic, TB System on GM vehicles, 2012 Dodge 5.7L, 1999 GNMC Sonoma 4.3). Please verify your vehicle's vallve size and pressure specs before purchase
- Ideal For Mechanics: Fuel Injection Pump Pressure / Oil Combustion Spraying Pressure Gauge Teste
- Durable: Designed for repeated use with high quality materials
- Convenient and Safe Design: Fuel pressure tester with a quick release valve button could offer single-handed operation inflation and deflation
- Measuring Range: 0-140psi (0-10 bar)
- Dual Dial For Accurate Reading, With A 140 PSI /10 Bar Scale
- Deluxe Manometer Fuel Injection Pressure Tester Gauge Kit
- Set comes in a specially designed molded case to make storage easy and organized.
- A time saving quick coupler connection at the end of he gauge hose makes a speedy and efficient couple possible with most adapters.
- The included adapters, hoses and fittings cover all fuel injection systems and most cars and trucks world wide!
- ACCURATE DUAL-SCALE GAUGE: Features a liquid-filled, shock-resistant gauge with clear 0-140 PSI and 0-10 BAR scales for precise fuel system diagnostics
- DURABLE CONSTRUCTION: Built with OEM-grade brass, aluminum, and steel components for long-lasting performance in tough environments
- COMPLETE ADAPTER SET: Includes 8 adapters (M6 to M14) and two hoses with quick-release valve for easy and safe testing on various fuel ports
- USER-FRIENDLY & SAFE: Comes with relief valve and drain hose for safe fuel recovery; always follow included safety guidelines for optimal use
- COMPATIBILITY NOTICE: This tester fits most gasoline engines in vehicles. But it will NOT FIT vehicles with Bosch, CIS Jetronic, GM TBI, or Direct Injection systems. Check Your Model as it may not fit certain Ford
, KIA, Acura, Jeep, BMW, Nissan, and Toyota models that use small or non-standard Schrader valves. We strongly recommend verifying your vehicle's specifications to guarantee a perfect fit.
- Digital Fuel Pressure Gauge: Accurate and clear data is easier to read on the backlight display. The buttons could adjusted to 4 different kinds of numerical units in PSI, KPA, BAR, KG/CM² for use.
- Quick Pressure Release Valve: Digital fuel pressure tester is equipped with pressure release valve with transparent hose for safer pressure discharge and fuel recovery.
- Accurate & Fast Connection: The coupler at the end of the gauge hose can be quickly connected with most adapters, saving time and improving efficiency.
- Precise Measurement: Digital fuel injection pressure tester gauge has 0.5 display resolution instead of normal 5PSI display resolution compression tester. The measurement range is 0-300PSI; 0-20BAR; 0-2000KPA; 0-20KG/CM²
- Scope of Application: Fuel pressure tester kit includes adapters, hoses and fittings compatible with all fuel injection systems and most cars and trucks world wide!
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