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03 Nissan Sentra will not accelerate?

There can be several reasons why your 2003 Nissan Sentra is not accelerating properly. Below are a few potential causes to check :

1. Fuel System Issues:

- Check the fuel level to ensure enough fuel in the tank

- Verify if there are any fuel pump failures

-Inspect for issues with fuel injector

- Check that there are no clogs or air leaks in the fuel line.

2. Air Intake/Throttle Body:

-Clean the throttle body if necessary

-Make sure that the air filter is clean and replace it if needed

-Inspect the air intake system for cracks or clogs

3. ignition problems

- Verify coil problem

-Spark plug wires could be broken or cracked

-Spark plugs worn or fouled.

4. Transmission :

- Examine transmission fluid, whether level is within proper range

-Ensure there are no transmission leaks that have caused a loss of transmission fluid and pressure drop,

-Scan vehicles codes and check for fault relating to the transmission control system

5. Catalytic converter issues :

- Check if catalytic converter is clogged