How to Open the Fuel Tank Cap of Borgward?

Why does the engine oil light come on at idle but goes off when revving?

If the engine oil light comes on at idle but goes off when revving, it is most likely due to a malfunctioning oil pump. The oil light, also known as the oil pressure light, illuminates when the oil pressure is insufficient. If the oil light comes on at idle, you should promptly turn off the engine and avoid driving the car. Here is more information about the oil pump: 1. Function of the oil pump: The oil pump is driven by the crankshaft via a belt or gear. When the engine starts, the oil pump begins working. It is responsible for pumping oil from the oil pan through the oil passages to the camshaft and other components, ensuring sufficient lubrication during high-speed operation. 2. Types: There are two types of oil pumps—rotor pumps and gear pumps—which can provide approximately 300kPa of pressure at idle. If the oil pressure is too low, some components may not receive adequate lubrication, leading to increased wear.

10

5

Share

Is Vehicle Damage Insurance the Same as the Vehicle's Appraised Value?

Vehicle Damage Insurance coverage is not necessarily equivalent to the vehicle's price. There are three methods to determine the coverage amount for Vehicle Damage Insurance: First, it can be based on the new car purchase price, which means full coverage, essentially matching the coverage amount with the new car's value. Second, it can be determined according to the vehicle's actual value at the time of insurance purchase, calculated by subtracting depreciation from the new car purchase price, resulting in underinsurance. Third, the coverage amount can be negotiated between the policyholder and the insurance company, typically applied to rare or confiscated vehicle models, where the coverage amount does not reflect the vehicle's price. Detailed introduction to Vehicle Damage Insurance: 1. Definition: Vehicle Damage Insurance is a type of commercial auto insurance where the insurer compensates within reasonable limits for damages to the insured vehicle caused by an insured accident while being driven by the policyholder or an authorized driver. 2. Coverage Scope: In the event of an insured accident, the insurer will cover necessary and reasonable rescue expenses paid by the policyholder to prevent or reduce the loss of the insured vehicle, up to the maximum coverage amount.

4

1

Share

What is the clutch and throttle coordination technique?

Clutch and throttle coordination technique: 1. Master the basics: If you can start the car using only the clutch without pressing the throttle, then you have grasped the foundation of clutch and throttle coordination. Once this is mastered, you can gradually incorporate throttle control. 2. Refine right foot movements in daily practice: Make throttle control precise, which can also be described as mastering the use of the throttle to control speed rather than relying on the brake. 3. Throttle depth: Regarding the control of throttle depth (engine RPM) during startup, it should be adjusted based on actual conditions. The primary goal is to ensure sufficient power to avoid stalling. Secondly, maintain an appropriate RPM and use the clutch to control the starting speed: if a quick start is needed and there are no vehicles ahead, you can press the throttle deeper and release the clutch more to achieve a swift start. If acceleration is unlikely after starting, there's no need to rev the engine excessively, as too much power would require either slowly releasing the clutch or applying the brake to control speed after starting.

13

1

Share

Can I Bring My Phone into the Car During the Subject 2 Test?

Mobile phones are not allowed in the car during the Subject 2 test. Here are some details about the Subject 2 test: 1. Subject 2 test score: The full score for the Subject 2 test is 100 points, with a passing score of 80 or above. Those who fail can retake the test once. If the retake is not passed, the test can be rescheduled after 10 days. It is worth mentioning that for large passenger vehicles, tractors, city buses, medium-sized passenger vehicles, and large trucks, a score of 90 or above is required to pass. 2. Subject 2 test opportunities: The Subject 2 test can be taken once, with one retake opportunity if the test is failed, totaling two chances. If the retake is not taken or is still failed, the test is terminated, and the applicant must reschedule the test after 10 days. Within the validity period of the driving skill test permit, the number of Subject 2 test appointments cannot exceed five. If the fifth test appointment is still failed, the results of other passed subjects will be invalidated.

13

4

Share

What are the numbering rules for national highways, provincial highways, county roads, and township roads in Subject 1?

Township roads are marked with a white background and the letter Y, county roads with a white background and the letter X, provincial highways with a yellow background and the letter S, and national highways with a red background and the letter G. The content of Subject 1 exam includes traffic regulations and related knowledge, covering driving theory basics, road safety laws and regulations, local regulations, and other relevant knowledge. Below are the specific details of Subject 1: 1. Exam Process: The total duration of the Subject 1 exam is 45 minutes, consisting of 100 questions in the form of true/false and multiple-choice questions, with a full score of 100 and a passing score of 90. The exam questions are randomly selected and combined by the computer driver examination system according to the proportion specified in the "Motor Vehicle Driver's License Work Regulations." 2. Exam Arrangement: Subject 1 refers to the theoretical driving test conducted at the vehicle management office, which is a mandatory licensing exam for all driver's license applicants. The scheduling of the theoretical driving test is determined by the local vehicle management offices.

3

Share

What Causes the ABS Light to Illuminate When Starting the Car?

There are various states in which the ABS light may illuminate, with different causes and solutions for each state, as detailed below: State 1: ABS warning light remains constantly on (most common). Cause 1: The ABS wheel speed sensor's sensing area is covered by dirt, mud, or other contaminants, affecting its ability to detect the corresponding speed signal. This prevents the ABS computer from determining the vehicle speed and wheel slip rate, thus failing to issue appropriate commands to regulate braking. Solution: Clean the dirt from the wheel speed sensor and adjust the gap between the sensor and the signal ring to restore normal function. Cause 2: Poor signal transmission due to loose connections in the system wiring or poor contact in the ABS relay, leading to system malfunction. Solution: Check all wiring connections and reconnect any loose parts. State 2: ABS warning light intermittently illuminates but turns off during acceleration. Cause: When multiple vehicle electrical devices are in use, the battery voltage drops below 10.5V. As the engine speed increases and voltage rises, the ABS light turns off. This may also occur if the ABS system's power supply voltage is too low due to poor terminal contact or grounding issues. Solution: Check the battery's specific gravity; inspect the charging system; examine the power supply (e.g., voltage relay or poor power contact). State 3: ABS warning light remains on after engine start and only turns off when the engine is turned off (IGFF). Cause: Poor grounding contact in the ABS hydraulic valve body; poor contact in the ABS hydraulic valve body wiring connector; ABS computer malfunction. Solution: Loosen and retighten the hydraulic valve body's grounding screw, cleaning the contact surface if necessary; check if the connector gap has widened; replace the ABS or ABS/ASR computer. State 4: ABS warning light illuminates during high-speed driving. Cause: At high speeds, the ABS computer detects a significant discrepancy between the rear and front wheel speed signals; incorrect tire or wheel rim specifications. Solution: Refer to the vehicle's tire and wheel rim specifications, typically listed on the fuel tank cap sticker. State 5: ABS warning light intermittently illuminates. Cause: Improper adjustment of the brake light switch; poor internal contact in the brake light. Solution: With the engine running, press the brake pedal, manually push the brake switch linkage down fully, then release the pedal to reset its position; replace the brake light switch if necessary. If the ABS warning light is on, it is advised not to continue driving. An illuminated ABS light indicates a malfunction in the vehicle's anti-lock braking system. During emergency braking, if the wheels lock up, the vehicle may skid uncontrollably, preventing the driver from slowing down or adjusting the vehicle's path, posing significant safety risks.

17

4

Share

How to Open the Fuel Tank Cap of Borgward?

Why does the engine oil light come on at idle but goes off when revving?

Is Vehicle Damage Insurance the Same as the Vehicle's Appraised Value?

What is the clutch and throttle coordination technique?

Can I Bring My Phone into the Car During the Subject 2 Test?

What are the numbering rules for national highways, provincial highways, county roads, and township roads in Subject 1?

What Causes the ABS Light to Illuminate When Starting the Car?

How to Fix a Malfunctioning Seat Belt That Still Beeps When Buckled?

Must ride-hailing vehicles be commercial vehicles?

Can I schedule the make-up test for Subject 2 on the same day after ten days?

What are the methods for checking a voltage regulator?