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Chevrolet introduced the Cavalier with 1982. The 2001 Chevrolet Cavalier was produced with the option of a 2.2-liter in-series 4-cylinder engine, or a 2.4-liter in-line 4-cylinder engine. The 2001 Cavalier has an internet fuel injected fuel program with a fuel pump that is feeds the fuel lines inside the fuel rail. The fuel rail consequently feeds the four fuel injectors on the best rear regarding the engine. Over time fuel pumps can go bad, and here are tests you can accomplish to eliminate or diagnose if your fuel pump is indeed defective.

Difficulty: Moderate Instructions

Fuel pressure tester

Second person or assistant

1 Available the hood of the Cavalier, and locate the fuel rail on the top rear piece of the engine. The fuel rail is the metal tube that connects to all 4 fuel injectors. Remove the cap away from the protruding nipple on the best of the fuel rail. This bump is called the fuel pressure tester port, and is used to help diagnose fuel delivery problems. Install a fuel stress tester hose onto the tester port and snug the tester onto the port.

2 Inquire an aide or moment person to turn the engine on. If the engine will not operate, ask your helper to change the engine throughout being if trying to start it, except for no longer than three seconds at a free time. Read the fuel pressure tester dial during the engine operate cycle, or the engine turning over. The dial should indicate a reading between 44 to 54 p.s.i., or pounds per square inch. If the dial does not indicate this level whilst the engine is running, or irregularly throughout engine turn throughout, then there yous any fuel deliver problem.

3 Ask your assistant to turn the engine off or cease turning the engine throughout. Remove fuel stress tester, and replace the testing port cap right away. Placement your physique near the fuel filler door on the Cavalier also open the door. Remove the gas cap. You are growing to place your ear subsequent to the fuel filler hole for the next two testing methods.

4 Ask your aid to turn the key to "Accessories" and after that back off, and repeat this four times in a row. Whenever the important is turned to "Accessories" you should hear some small motorized noise arriving upwards the fuel filler tube to your ear. If you do never hear this noise, then you may have a malfunctioning fuel pump. Proceed to the next audible testing procedure inside Step 5.

5 Ask your aide to turn the engine on completely or just turn the engine over if it wont start. Listen carefully as the engine is turning over, or operating for any "gurgling" or "tinkling" appear out of the fuel system. The "gurgling" noise is the fuel tap engaging with the liquid fuel. The "tinkling" noise is the fuel return putting fuel back in the tank. The main noise you want to hear is the gurgling seem, since this means the fuel pump is engaging. If you do not hear each and every noise, after that your fuel pump is malfunctioning.

Tips & Warnings

This project requires being all over automotive petrol related parts, and automotive gasoline vapors. Automotive petrol vapors are very inflammable. Retain this total project away from wide open flame, spark, excessive warmth, or cigarette smoking. Failure to adhere to this warning could cause vehicle fire or special injury.