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 MANUALSCHEVROLET2002MONTE CARLO SS DALE EARNHARDTREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM SELF-DIAGNOSTICS - 3.8LDIAGNOSTIC TESTSDTC P0446: EVAP VENT SYSTEM PERFORMANCECONDITIONS FOR RUNNING DTC
2002 Chevrolet Monte Carlo SS Dale Earnhardt
Conditions For Running DTC
2002 Chevrolet Monte Carlo SS Dale EarnhardtSECTION Conditions For Running DTC
- Ignition voltage is 10-18 volts.
- Barometric (BARO) pressure is more than 75 kPa.
- Fuel level is 15-85 percent.
- Engine Coolant Temperature (ECT) is 39-86°F (4-30°C).
- Intake Air Temperature (IAT) is 39-86°F (4-30°C).
- Start-up ECT and IAT are within 16°F (9°C) of each other.
- Vehicle Speed Sensor (VSS) is less than 75 MPH.
- DTCs P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0121, P0122, P0123, P0125, P0440, P0442, P0443, P0449, P0452, P0453, P1106, P1107, P1111, P1112, P1114, P1115, P1121, or P1122 are not set.
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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.