What Causes High RPM but No Speed Increase?

1 Answers
VonAnna
07/28/25 2:43pm
The reasons for high RPM but no speed increase are: 1. Severe wear of the clutch plate; 2. Insufficient torque of the friction plate clutch; 3. Transmission oil not replaced for too long or damage to the hydraulic mechanism in the transmission; 4. Slippage of internal friction plates in the transmission; 5. Malfunction in the engine's electronic control system. Car RPM refers to the engine speed, and the tachometer is located on the instrument panel, symmetrically placed with the speedometer. Its functions are: 1. To promptly reflect the engine's operating condition; 2. To allow the driver to better coordinate the transmission gear and throttle position; 3. To maintain the car in good working condition; 4. To reduce consumption and prolong the engine's lifespan.
Was this review help?
3
0
Share
More Forum Discussions

What is the Difference Between Manual and Automatic Transmission Cars?

From an operational perspective, manual transmission cars require stepping on the clutch pedal for manual gear shifting and reversing. In contrast, automatic transmission cars do not require a clutch pedal, having only brake and accelerator pedals. They use D (Drive) for forward movement, N (Neutral) for idle, P (Park) for parking, and R (Reverse) for backing up, making automatic transmission simpler to operate than manual. The specific details are as follows: 1. From a working principle standpoint, manual transmissions require shifting the gear lever to change the gear engagement positions inside the transmission, altering the gear ratio to achieve speed changes. Automatic transmissions, on the other hand, utilize planetary gear mechanisms for shifting, automatically adjusting gears based on the degree of throttle pedal pressure and changes in vehicle speed. 2. In terms of advantages and disadvantages, manual transmissions are more complex to operate, requiring certain driving skills from the driver, and prolonged operation can lead to fatigue. Automatic transmission cars react more slowly to speed changes, have lower transmission efficiency, a limited torque converter range, and higher fuel consumption compared to manual transmissions. Additionally, they are less responsive than manual gearboxes and have more complex mechanisms. 3. From an economic perspective, manual transmission technology is more mature, generally cheaper, and easier to maintain and repair in the long run, whereas automatic transmissions are the opposite.
7
2
Share

How many seconds after the red light does the camera start taking photos?

Photos are taken immediately. Running a red light triggers the camera when the red light is on. The induction lines sense the pressure from vehicles on the road, and the sensors transmit the signal to the central processor, which temporarily stores it in the register. If two signals are successfully sent the moment the red light turns on, it is considered running a red light. The working principle involves taking one photo after crossing the line, another after passing through the red light, and a final one upon reaching the opposite side of the intersection. Additional Information: Note 1: The camera activates the red-light running capture system immediately when the red light turns on; there is no 3-second delay. Additionally, electronic monitoring devices for red-light running currently use two methods: digital cameras and digital camcorders. Regardless of the method, they focus on and capture a specific area around the stop line. Note 2: When the red light is on, if the front wheels of the car cross the line but the rear wheels remain within the line, only one signal is generated, making it unlikely to be captured. However, if the front wheels cross the line and the car reverses back within the line to avoid being captured, the camera may sense this and send another signal. Two signals will then be judged as running a red light.
16
5
Share

How to Remove the Rear Seat of a Magotan?

The method to remove the rear seat of a Magotan is as follows: 1. Locate the fasteners where the seat cushion meets the floor on both the left and right sides. 2. Insert both hands on either side of the fasteners and lift upwards with force. 3. Once both fasteners are lifted, push the entire seat cushion firmly towards the backrest. 4. The cushion can then be slid out horizontally and lifted upwards to be completely removed. Additional information: 1. Regarding body dimensions, the Magotan measures 4866mm in length, 1832mm in width, 1464mm in height, with a wheelbase of 2812mm. 2. In terms of power, this vehicle is equipped with a 1.8TSI engine, which is a new-generation engine from Volkswagen Germany. The all-new Magotan 1.8TSI and its entire lineup adopt the HSB high-strength body structure design, with 74% of the body structure made of high-strength and ultra-high-strength steel plates, significantly enhancing the body structure strength while reducing the overall weight.
5
2
Share

Do I need to pay a re-examination fee if I missed the scheduled subject one test?

No re-examination fee is required. According to Article 44 of the "Regulations on the Application and Use of Motor Vehicle Driver's Licenses": Each subject test can be taken once, and if failed, a re-examination is allowed once. If the re-examination is not attended or still fails, the current examination process terminates, and the applicant must reschedule the examination. Relevant requirements for applying for a motor vehicle driver's license stipulate: 1. In areas where self-study and direct examination for small cars and small automatic transmission car driver's licenses are implemented: Applicants can use their own vehicles equipped with safety auxiliary devices to learn driving skills on routes and times designated by the traffic management department of the public security authority, under the guidance of a person with safe driving experience, and apply for the corresponding driver's license for the permitted vehicle type in accordance with Article 19 or 20. 2. For those who already hold a motor vehicle driver's license and apply to add permitted vehicle types: The additional permitted vehicle types that can be applied for include large buses, tractors, urban buses, medium buses, large trucks, small cars, small automatic transmission cars, low-speed trucks, three-wheeled cars, ordinary three-wheeled motorcycles, ordinary two-wheeled motorcycles, light motorcycles, wheeled self-propelled machinery, trolleybuses, and trams.
12
5
Share

How to Align the Timing Belt?

The method for aligning the timing belt is as follows: 1. Ensure that the No. 1 piston is at the top dead center of the compression stroke. Make sure the camshaft timing marks align with the marks on the timing belt cover, and the crankshaft sprocket timing marks align with the marks on the oil pump housing; 2. Install the timing belt onto the crankshaft sprocket, then route it from the left camshaft sprocket to the right camshaft sprocket. Ensure the old belt is installed in the original rotation direction, and the letters on the new belt can be read from the rear of the engine; 3. Loosen the timing belt tensioner nut. Lift and support the car. Install the intermediate timing belt cover, ensuring the crankshaft sensor wiring harness is correctly routed. Install the lower timing belt cover; 4. Rotate the crankshaft clockwise approximately 2 turns until the yellow mark on the crankshaft damper aligns with the "0" mark on the lower timing belt cover. Remove the plastic inspection door on the lower timing belt cover. Tighten the timing belt tensioner nut to the specified torque; 5. Rotate the crankshaft clockwise 60 degrees until the white mark on the crankshaft damper aligns with the "0" mark on the lower timing belt cover. Ensure the camshaft timing marks align with the marks on the timing cover.
12
4
Share

How Many Years Can Car Tires Be Used?

Car tires can generally be used for 3-5 years, and the mileage should preferably not exceed 60,000 kilometers. The following are the signs for tire replacement: 1. Bulging on the tire sidewall: When bulging appears on the sidewall of a car tire, it is necessary to replace the tire promptly, as bulging on the tire sidewall is difficult to repair. Bulging indicates that the cords inside the tire have broken, and a blowout may occur at any time while driving. Immediate replacement is required to avoid compromising driving safety. 2. Tire cracks: Tire cracks are relatively common in daily car use. These cracks can vary in length and depth, so proper judgment is needed. If you are unsure about the tire's condition, it is recommended to have the tire inspected at a 4S store or a professional auto repair shop. Severe tire cracks can lead to bulging and increase the risk of a blowout. 3. Tire wear indicators: Car tires have wear indicators, which mark the limit of tire wear. If the tire wear reaches these indicators, the tire should be replaced immediately. Such tires pose significant safety risks, as even on dry roads, braking distance may increase, and on wet or slippery roads, they may cause skidding or brake failure.
14
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.