Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G3500, VAN PASSENGER EXTENDED, 6.5 FREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 213 (ENGINE CONTROLS SELF-DIAGNOSTICS - 3.1L ENGINE)DIAGNOSTIC TESTSDTC P0125: ENGINE COOLANT TEMPERATURE INSUFFICIENT FOR CLOSED LOOP FUEL CONTROLCONDITIONS FOR RUNNING TEST
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 F
Conditions For Running Test
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 FSECTION Conditions For Running Test
WARNING: This page is about a different car, the 2003 Pontiac Grand Prix, 2003 Chevrolet Malibu, and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
- DTCs P0112, P0113, P0116, P0117 or P0118 are not set.
- The engine run time is between 120-440 seconds.
- The minimum IAT sensor parameter is more than 19Β°F (-7Β°C).
- The start-up ECT is between -40 to 50Β°F (-40 to 10Β°C).
- The accumulated Mass Airflow (MAF) is between 1252-5670 grams.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.