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 63 (ENGINE CONTROLS - SELF-DIAGNOSTICS - 4.0L)DIAGNOSTIC TESTSDTC P0116: ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT PERFORMANCECONDITIONS FOR SETTING DTC
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 F
Conditions For Setting DTC
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 FSECTION Conditions For Setting DTC
WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
- If PCM detects a temperature difference of more than 36°F (20°C) between the ECT and IAT, the vehicle must be driven for 5 minutes over 15 MPH. If IAT decreases more than 12.6°F (7°C), then a block heater is indicated and test is aborted. If IAT temperature does not decrease, a block heater was not detected and this DTC will set.
- The temperature difference between the ECT and IAT at start-up is more than 252°F (140°C).
- The time spent cranking the engine without starting, is more than 10 seconds.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.