Browse

Property For Sale Property For Rent

Used Cars Others

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Others Pet Supplies Sporting Goods Ticket Toys Games Transportation

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

Why is the car weak in second gear?

2 Answers

WilliamDella

09/06/25 6:36am

Car weakness in second gear is due to insufficient fuel pump pressure. Below are the related explanations: 1. Cracked fuel pump drive gear: The fuel pump cannot operate. The fuel pump drive gear is driven by the keyway shaft on the torque converter housing. Improper installation of the torque converter may crush the drive gear, or operational fatigue may cause it to crack. 2. Excessive part clearance: The fuel pump requires high assembly precision between its components. If the clearance between parts exceeds limits due to wear, it will inevitably lead to insufficient oil pressure. 3. Installation note: Therefore, when installing the transmission onto the torque converter, ensure the torque converter shaft key is inserted into the fuel pump drive gear keyway before tightening the bolts between the transmission and the engine.

Was this review help?

5

2

Share

Crystal

09/18/25 6:20am

Hi, as an automotive enthusiast who frequently shares experiences on forums, let me talk about the issue of lack of power in second gear. This is usually caused by ignition system problems, such as carbon buildup or wear on the spark plugs, leading to weak ignition and insufficient power; or fuel system blockages like a dirty fuel filter causing poor fuel supply. An air filter that hasn't been replaced for too long can also result in insufficient air intake and incomplete combustion. For manual transmission cars, it could also be due to clutch slippage or worn transmission gears. I recommend first checking the spark plugs and filters yourself. If simple cleaning doesn't help, take it to a professional repair shop to avoid safety risks on the road. Regular maintenance can really prevent these kinds of troubles.

Was this review help?

14

3

Share

Expand All

More Forum Discussions

How to Register for a Driver's License?

There are three registration methods: 1. Register at a driving school; 2. Register at the vehicle management office; 3. Register online. Required documents for applying for a motor vehicle driver's license: Applicants need to provide their original and photocopied household registration book, ID card, and temporary residence permit (if applicable), as well as prepare nine one-inch bareheaded ID photos, which will be used on the license later. If you reside long-term in your household registration location, you should apply locally. If you live outside your household registration location, you can apply at your current residence. Foreign nationals should also apply at their place of residence. To obtain a driver's license, you first need to fill out a form and undergo a physical examination. After the exam application is accepted, you will start learning relevant knowledge and driving skills until the exam date. Once all exams are passed, the vehicle management office will issue the driver's license.

What to Do When the Tire Pressure Monitoring Light Comes On?

Tire pressure warning light on the processing method is: 1. First, pull over and check the tire pressure of all four tires. If no obvious deflation is visible to the naked eye, you can reset the tire pressure system after getting back in the car to turn off the warning light; 2. If the tire pressure warning light comes on again, it indicates that the tire pressure of a certain tire indeed has a problem, and it needs to be checked and repaired promptly. Reasons for the car tire pressure warning light to come on: 1. Tire puncture; 2. Excessive tire pressure; 3. Driving with low tire pressure for too long; 4. Faulty tire pressure sensor; 5. Low tire pressure due to prolonged lack of inflation. Installing a tire pressure monitoring alarm in the car can prevent accidents caused by abnormal tire pressure.

Do You Have to Register Your Car Where You Buy It?

Purchasing a car in a different location does not require you to register it there, but you need to ensure the vehicle has the following: 1. A legitimate invoice. 2. A certificate of conformity. 3. Purchase tax (additional fees). 4. Compulsory insurance (traffic insurance). Registering a car means obtaining a license plate. Without a license plate, the car cannot be driven on the road, but a new car can use a temporary plate. Here is some information about car license plates: 1. License plate: Commonly known as a car plate, it is a panel hung at the front and rear of the vehicle, usually made of aluminum, sheet metal, plastic, or paper, engraved with the vehicle's registration number, registration region, or other relevant information. 2. Purpose: The license plate helps identify the vehicle's region of registration and allows tracking of the vehicle's owner and registration details.

What is the function of a roll cage?

It can enhance the strength and torsional resistance of the vehicle body. Here are the specific details about the vehicle roll cage: 1. Definition of a Roll Cage: A vehicle roll cage is a detachable assembly of steel pipes. It is made from cold-drawn seamless carbon steel pipes, bent and shaped to fit the interior contours of the vehicle cabin during installation, where each pipe is connected or welded one by one. The material and torsional resistance of the steel pipes used in the roll cage are determined based on the vehicle's weight, generally designed to withstand impacts of at least twice the vehicle's weight. Professionally installed roll cages not only handle emergencies but also enhance the vehicle body's strength and torsional resistance. For example, by connecting several welding points of the roll cage to the front and rear shock absorber mounts, even if the vehicle frequently jumps, the impact forces from the ground will be partially dispersed to the roll cage, thereby protecting the vehicle body. 2. Characteristics of a Roll Cage: Simply put, a roll cage consists of a main or side roll bar, a front roll bar, a rear support, and connecting parts forming a frame structure. The main roll bar must be a nearly vertical frame or ring structure that crosses the vehicle body behind the front seats. The front roll bar should be similar to the main roll bar but must not obstruct the driver's view. Its shape must follow the A-pillar, with the top positioned above the windshield, aiming to ensure strength while minimizing obstruction to the driver. The main or side roll bar and the front roll bar must each be a single, continuous piece without any connection points along their length.

How many kilometers can a Sagitar run on a full tank of gas?

Sagitar can run 400 to 500 kilometers on a full tank of gas, and 700 to 800 kilometers when driving entirely on highways. Here is the calculation method for car fuel tank capacity and an introduction to the fuel tank capacities of other vehicles: Calculation method for car fuel tank capacity: Taking a regular rectangular fuel tank as an example, with a width of 58cm, height of 58cm, and length of 110cm, the fuel tank capacity is equal to 58 multiplied by 58 multiplied by 110, which equals 370,040 cubic centimeters. Since 1 liter equals 1,000 cubic centimeters, the capacity is approximately 370 liters. Fuel tank capacities of other vehicles: Generally, the fuel tank capacity of family cars ranges between 35-55 liters, while mid-size sedans and mid-size SUVs have fuel tank capacities between 55-70 liters. Large SUVs can have fuel tank capacities of up to 100 liters. The fuel tank capacity is usually the maximum capacity announced by the car manufacturer. As the name suggests, the fuel tank capacity measures a car's ability to carry gasoline. A larger fuel tank capacity indicates a longer driving range and stronger power for the car.

Which Type of Transmission Offers Better Overall Performance?

MT transmissions perform well overall, but they are not automatic and have poorer shift comfort. Theoretically, the best is the dual MT clutch DCT, which retains the advantages of MT transmissions while shifting like a dry DCT, with no drawbacks, making it the theoretically best DCT transmission. In the past, dry DCTs couldn't handle high torque, and when clutch reliability issues weren't a concern, they could be called the "endpoint of transmissions." Theoretically, dual AMT-style DCTs can handle high torque, and the dual MT clutches used are highly reliable, with overall performance surpassing the "endpoint of transmissions." The dual AMT-style dual-clutch solves the issues of low-speed shift jerkiness, vibration, and noise in DCTs. The reason for jerkiness in DCTs is insufficient clutch slip power and slow clutch engagement speed—neither of which is an issue for MT clutches, so dual AMT shifts can be smooth. DCT vibration occurs because the drivetrain's resonant frequency isn't low enough, which is due to the clutch's secondary mass being insufficient. The combined mass of the two MT clutches in a dual AMT is large, resulting in a sufficiently low drivetrain resonant frequency, preventing vibration during startup and low RPMs. DCT noise is caused by synchronizer gear clash, as wet clutches don't fully disengage, making synchronizer clash more likely. The dry MT clutches in dual AMTs fully disengage, preventing synchronizer noise, and the normally closed MT clutches avoid clutch collision noise. The dual AMT-style dual-clutch has no jerkiness, vibration, or noise and can handle high torque, theoretically making it the "endpoint of transmissions."

Trending Ranking

What is the fuel consumption of the Haval H6?

Can 95 and 92 gasoline be mixed?

What is the fuel consumption of the SANY 430 tractor?

What does car release of mortgage mean?

Can vehicle inspection be conducted in advance?

What Causes Transmission Oil Leaks?

What Causes an Automatic Transmission Car to Suddenly Fail to Shift Gears?

What are the symptoms of minor cylinder scoring in an engine?

Can One Person Get a Loan to Buy Two Cars?

Can You Drive After Drinking a 330ml Beer?

More Forum Discussions

What does the CRUISE button on the steering wheel mean?

What Are the Influencing Factors of the Optimal Ignition Timing Advance Angle?

How many kilometers should a sedan's transmission fluid be replaced?

What is a 'pure water' car?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.