What Causes the Roaring Sound When Accelerating in Baojun 730 Engine?

[Theresa]

Baojun 730 engine roaring sound during acceleration can be caused by the following reasons: 1. Engine misfire: Leads to increased fuel consumption, black smoke emission, weak acceleration, and severe shaking. 2. Clutch slipping: Results in incomplete gear engagement or disengagement. 3. Low fuel rail pressure: Caused by dirty throttle position sensor or voltage imbalance leading to electronic throttle failure.

[KiraLee]

I've driven quite a few cars, and the whirring sound during acceleration in the Baojun 730 is actually quite common. This is usually the sound of the turbocharger, especially in the 1.5T models. When you press the accelerator hard and the engine runs at high speed, the turbo rapidly sucks in air, producing this whirring noise. If the volume isn't too loud and the car accelerates smoothly, it's within the normal range. However, if the sound becomes harsh or is accompanied by other unusual noises, you should check the intake pipes—it could be loose connections or aging rubber causing air leaks, leading to turbulent airflow and a gurgling sound. Another possibility is insufficient belt tension or worn-out fan bearings making a squeaking noise at high speeds. I recommend regularly cleaning the air filter to prevent clogging and checking the pipe seals. If anything seems off, take it to a professional shop immediately for diagnostic tests to avoid minor issues turning into major repairs that affect fuel efficiency and performance. Safety first—don't wait until the noise gets worse to take action.

[IrisAnn]

As a long-time owner, I've also been troubled by the whooshing sound during acceleration in my Baojun 730. Initially, I thought the engine was damaged, but it turned out to be caused by aging and loose intake pipe joints leading to air leaks, creating vortex sounds. Another time, it was due to inadequate sealing at the exhaust pipe connection, causing abnormal whistling at high speeds. It's best to check with the engine cold—open the hood and inspect for loose pipes or cracks. Such sounds are normal in turbocharged models, but if they're too pronounced, it indicates an issue—oil problems or belt slippage can also exacerbate the noise. During regular maintenance, I check these components, especially after long trips. Tightening connections and replacing worn parts can effectively prevent issues. Remember, if unusual noises intensify, stop and inspect immediately to avoid disrupting your journey or causing more significant damage.

[JohnnyAnn]

As a car enthusiast, I often ponder over vehicle issues. The whooshing sound in the Baojun 730 during acceleration is most likely a minor issue with the intake system. For the 1.5T engine, the whooshing is just the normal sound of the turbocharger sucking in air. However, if the noise is excessively loud, check for cracks in the intake pipe or leaks at the connections—these leaks can cause airflow reverberation. Another common culprit is a dirty or clogged air filter, which can make the engine produce a gurgling sound due to restricted airflow. My simple test method: at idle, spray some soapy water on the pipe connections; if bubbles form, you’ve found the leak. Worn belts or noisy generator bearings can also contribute to the whooshing sound, but diagnosing these requires professional tools. I recommend cleaning the filter and pipes during every oil change to maintain smooth airflow.