BEBJ1D03001 | Genuine Paccar® Fuel Injectors Set For MX-11, MX-13

1. Precise fuel delivery

• Provides the exact amount of fuel needed for combustion at the right moment.

2. Improve fuel efficiency

• Properly atomized fuel burns more completely, reducing waste and improving mileage.

3. Enhance engine performance

• Ensures smooth acceleration, stable idling, and consistent power output.

4. Reduce emissions

• Efficient combustion minimizes harmful exhaust gases.

5. Support modern engine management

• Works with sensors and the ECU to adjust fuel based on speed, load, and operating conditions.

1. Engine misfires or rough idle

• One or more cylinders may not receive proper fuel, causing shaking, sputtering, or uneven running.

2. Poor fuel economy

• Leaking or clogged injectors can cause too much or too little fuel delivery, reducing efficiency.

3. Hard starting or no start

• If fuel isn’t reaching the combustion chamber, the engine may struggle to start or fail to start entirely.

4. Engine knocking or pinging

• Improper fuel delivery can cause abnormal combustion, leading to knocking sounds.

5. Increased exhaust smoke

• Black smoke indicates too much fuel; white or gray smoke may suggest incomplete combustion.

6. Fuel odors

• Leaking injectors can produce a noticeable gasoline smell around the engine.

7. Check Engine Light (CEL)

• The ECU may detect misfires, lean/rich conditions, or injector faults, triggering the CEL.

8. Engine hesitation or loss of power

• Poor fuel atomization or inconsistent flow reduces acceleration and overall performance.