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What Causes Insufficient Climbing Power and Engine Abnormal Noise?

1 Answers
BraxtonLynn
09/03/25 2:57am
Insufficient power during climbing accompanied by abnormal engine noise is most likely caused by engine knocking and cylinder knocking. Here are several reasons for engine cylinder knocking: 1. Incorrect gasoline octane rating. If the vehicle is labeled for 95-octane gasoline but 92-octane is added instead, the insufficient octane rating will lead to cylinder knocking and detonation. 2. Carbon deposits in the cylinder combustion chamber. An engine intake tract that hasn't been cleaned for a long time will accumulate excessive carbon deposits. Too much carbon buildup can increase the engine's compression ratio response, leading to detonation and subsequent cylinder knocking. 3. Spark plug failure. If any one of the four spark plugs experiences poor ignition, it can cause cylinder knocking. Therefore, spark plugs should be replaced promptly.
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What reference points should be observed for parallel parking in Subject 2?

Subject 2 driving test consists of five items: reverse parking, parallel parking, hill start, right-angle turn, and curve driving. For parallel parking, there are three key reference points that require special attention. First reference point: Steer fully right: It's relatively easier to locate the parking spot through the rearview mirror. When the front horizontal yellow line of the right parking space disappears from the right rearview mirror, gradually turn the steering wheel fully to the right. Second reference point: Straighten the wheels: When observing from the driver's seat, straighten the steering wheel immediately upon seeing the rear right corner of the parking space appear in the left rearview mirror. Third reference point: Steer fully left: While turning left, observe the left rearview mirror. When the left rear wheel just touches the white dashed line, quickly turn the steering wheel fully to the left. Parallel parking test criteria: 100 points deduction if the vehicle body crosses the line after parking. 10 points deduction if wheels touch the lane boundary during movement. 100 points deduction for failing to park completely within the space. 10 points deduction for not activating the left turn signal before starting. 100 points deduction for stopping during the maneuver.
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Is the BM3 Tuning Stable?

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What does CJ-4 diesel engine oil represent?

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