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 MANUALSNISSAN-DATSUN2004SENTRA L4-2.5L (QR25DE)REPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSFUEL SYSTEM - COLD WEATHER ENGINE STARTING TIPS
2004 Nissan-Datsun Sentra L4-2.5L (QR25DE)
Fuel System - Cold Weather Engine Starting Tips
2004 Nissan-Datsun Sentra L4-2.5L (QR25DE)SECTION Fuel System - Cold Weather Engine Starting Tips
Classification: PI95-005A
Reference: NTB95-120A
Date: January 10, 2003
COLD WEATHER STARTING TIPS
This bulletin supersedes PI95-005. The Service Information has been amended. Please discard all paper copies of PI95-005
APPLIED VEHICLE(S):
All models
SERVICE INFORMATION
In case a vehicle is hard to start during cold weather, we suggest the following procedure.
^ These steps are a review of the procedure outlined in the Owner's Manual.
^ Use these steps when the weather is cold and the engine is hard to start.
1. Press the accelerator pedal down approximately 1/3 of the way to the floor.
2. Hold the accelerator pedal in this position while cranking the engine.
3. Once the engine has started release the accelerator pedal.
NOTE:
Do not race the engine while warming it up.
4. If the engine does not start within 15 seconds, stop cranking, wait at least 10 seconds. Then repeat steps 1 through 3.
Once an engine is started in cold weather condition:
^ You should keep the engine running for a minimum of 2-3 minutes before shutting it off.
^ Starting and stopping of the engine over a short period of time may make the vehicle more difficult to restart.
^ It may also adversely affect a vehicle's fuel economy.
Another factor which may affect a vehicles "startability" is the viscosity or thickness of the oil that is used.
^ SAE 5W-30 viscosity engine oil is preferred for all temperatures, all year-round for most models.
^ SAE 5W-30 viscosity oil makes it easier to start the engine and maintain a stable idle during warm-up.
Please communicate these cold weather starting tips to your customers.

Disclaimer
Reference: NTB95-120A
Date: January 10, 2003
COLD WEATHER STARTING TIPS
This bulletin supersedes PI95-005. The Service Information has been amended. Please discard all paper copies of PI95-005
APPLIED VEHICLE(S):
All models
SERVICE INFORMATION
In case a vehicle is hard to start during cold weather, we suggest the following procedure.
^ These steps are a review of the procedure outlined in the Owner's Manual.
^ Use these steps when the weather is cold and the engine is hard to start.
1. Press the accelerator pedal down approximately 1/3 of the way to the floor.
2. Hold the accelerator pedal in this position while cranking the engine.
3. Once the engine has started release the accelerator pedal.
NOTE:
Do not race the engine while warming it up.
4. If the engine does not start within 15 seconds, stop cranking, wait at least 10 seconds. Then repeat steps 1 through 3.
Once an engine is started in cold weather condition:
^ You should keep the engine running for a minimum of 2-3 minutes before shutting it off.
^ Starting and stopping of the engine over a short period of time may make the vehicle more difficult to restart.
^ It may also adversely affect a vehicle's fuel economy.
Another factor which may affect a vehicles "startability" is the viscosity or thickness of the oil that is used.
^ SAE 5W-30 viscosity engine oil is preferred for all temperatures, all year-round for most models.
^ SAE 5W-30 viscosity oil makes it easier to start the engine and maintain a stable idle during warm-up.
Please communicate these cold weather starting tips to your customers.
Disclaimer
RENDER: 1.0x
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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.