What are the reasons for the Dongfeng Fengguang 330's lack of acceleration when running?

2 Answers
MarianaAnn
07/24/25 7:30am
The following are the specific reasons for the Dongfeng Fengguang 330's lack of acceleration when running: 1. Carbon deposits: Carbon deposits include cylinder carbon deposits, throttle carbon deposits, spark plug carbon deposits, and intake carbon deposits. 2. Fuel system: Adding an incompatible fuel grade can lead to a decrease in the car's output power and reduced performance. 3. Air intake: If the air filter is not cleaned in time after long-term use, it can become clogged, resulting in insufficient air volume and causing the combustible mixture to become too rich, which reduces the engine's power. 4. Engine overheating: Engine overheating can lead to poor lubrication, increased mechanical wear, reduced engine power, and ultimately cause the engine to lack acceleration.
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VonAiden
08/11/25 3:13am
I encountered a similar situation a few days ago, and the lack of car acceleration was really frustrating. From my experience, when a Dongfeng Fengguang 330 has this issue, it's mostly due to several common faults. First, check the fuel system—clogged fuel filters or dirty fuel injectors can restrict fuel supply, directly affecting acceleration. Second, the ignition system is crucial—worn spark plugs or faulty ignition coils can cause incomplete combustion in the engine. Third, there might be an intake problem—if the air filter hasn't been replaced for a long time, it can restrict airflow, and carbon buildup in the throttle body can also limit air intake. Fourth, don’t overlook the exhaust system—a clogged catalytic converter or muffler increases backpressure. Fifth, it could be due to ECU sensor drift or transmission slippage. I recommend doing a simple self-check first, like inspecting the condition of the filters, but it's best to visit a professional shop for a diagnostic scan to avoid minor issues turning into major repairs, which can be both dangerous and costly. For safety, address the problem promptly.
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