Can You Still Drive with the Exhaust Malfunction Light On?

3 Answers
LaEliza
07/28/25 4:07pm
You can still drive with the exhaust malfunction light on. Here are some precautions regarding vehicle fault diagnosis: Diagnostic conditions: Diagnosis, testing, and troubleshooting must be performed under absolutely safe conditions. When using specialized diagnostic equipment, avoid operating it alone. Avoid disassembly: During vehicle fault diagnosis, try to minimize disassembling parts to prevent new faults or damage. Fault testing: Do not conduct prolonged or repeated tests on faults that may harm the vehicle's assemblies or components. It is advisable to have the vehicle inspected and repaired at a 4S shop or auto repair shop. Otherwise, the fault may worsen, leading to greater losses.
Was this review help?
11
1
Share
DeBrooke
08/11/25 8:23pm
I usually enjoy driving to and from work, but the other day the exhaust fault light suddenly came on, which was really worrying. I know that when this light comes on, it usually indicates a problem with the exhaust system, possibly a faulty sensor or an exhaust leak. Safety first, so I immediately pulled over and called a friend at the repair shop. They advised against driving too far, especially on highways or long trips, as the issue could worsen, potentially causing the engine to stall, exceeding emission standards, or even getting flagged by traffic police. Later, it turned out to be a faulty oxygen sensor, and replacing it only cost a few hundred bucks. If the light comes on, it's best to have a professional check it out as soon as possible and not push your luck—after all, the car is your property, and safety is more important.
Was this review help?
15
3
Share
Expand All
BrynleeMarie
09/29/25 6:29am
As a college student, I mainly drive on weekends for outings and don't have much driving experience. When the exhaust fault light came on, I tried continuing to drive, but the mechanic later said it was very dangerous and could worsen the damage, such as ruining the catalytic converter, which could cost thousands to fix. The cause might be simple, like loose wiring, and it's advised to first check if there are any other warning lights on the dashboard. Driving slowly for short distances in the city might be okay, but avoid highways. I always look up error codes online; buying an OBD scanner costs just a few dozen yuan and can provide a preliminary diagnosis. To save money and hassle, addressing the issue promptly is key to prevent minor problems from turning into major repairs.
Was this review help?
14
3
Share
Expand All
More Forum Discussions

What is the emission standard for cars in 2006?

2006 cars could meet either China II or China III emission standards. Here are the relevant details: 1. China II: The abbreviation for the National Phase II emission standard, equivalent to Euro II standards, meaning the exhaust pollutant levels match Euro II requirements. 2. Regulation: According to the State Environmental Protection Administration's "Announcement on Implementing National Phase II Motor Vehicle Emission Standards," starting from September 1, 2003, all newly designed heavy-duty vehicles were required to comply with National Phase II type-approval emission limits equivalent to Euro 2 standards.
13
4
Share

What does the hold button in the car mean?

The hold button on the vehicle means hold. After pressing the hold button, the automatic transmission is in hold mode, and the hold mode indicator light on the dashboard lights up. The hold button adjusts the optimal driving state according to different driving conditions, effectively preventing the transmission from shifting frequently, and plays the role of forced downshifting and not upshifting when overtaking. The situations for using the hold button are: 1. When starting on snow, place the gear lever in the 2nd gear position and press the hold button, the transmission will maintain the gear ratio at 2nd gear, making the start smoother; 2. When driving on continuous curves, press the hold button in D4 gear, the transmission will maintain 3rd gear, which can continuously output greater torque, improve acceleration performance, and make driving smoother; 3. When driving on mountain roads or continuous slopes, press the hold button in D4 or 2nd gear to enter hold mode, making acceleration more powerful when going uphill and providing greater resistance and safety when going downhill, avoiding wear caused by frequent shifting of the transmission.
20
3
Share

How Long to Wait Before Rescheduling After Failing Subject 3

Subject 3 exam retakes can be scheduled 10 days after a failed attempt. Below are key details about Subject 3 testing: 1. Test components: Vehicle preparation, lighting simulation test, starting off, straight-line driving, gear shifting operations, lane changing, roadside parking, proceeding straight through intersections, left/right turns at intersections, crossing pedestrian crosswalks, passing school zones, passing bus stops, oncoming vehicle handling, overtaking, U-turns, and nighttime driving. 2. Retake policy: According to China's driver's license regulations, candidates have five total attempts for Subject 3. Failure to pass after five attempts invalidates all previous test results, requiring complete re-registration starting from Subject 1.
4
0
Share

Is Wheel Alignment Necessary When Replacing Shock Absorbers?

Replacing shock absorbers does not require a wheel alignment. Here are the reasons why wheel alignment is unnecessary when replacing shock absorbers: 1. Limitations of Wheel Alignment: The front wheels in a wheel alignment can generally only adjust the front wheel toe-in, while parameters such as caster angle, kingpin inclination, and front wheel camber are typically set at the factory and cannot be adjusted afterward. 2. Self-Adjustment Capability of Shock Absorbers: When replacing shock absorbers, the entire connection between the vehicle's front suspension and the wheel hub needs to be disassembled. However, the length of the tie rod, which affects the front wheel toe-in, remains unchanged. After replacing the shock absorbers and reinstalling the tie rod, its relative position will return to its original state.
3
4
Share

Which is More Fuel-Efficient, Cars with T or Without T?

Cars with T naturally represent better fuel efficiency. Here are some measures to improve fuel efficiency: 1. Control RPM: While driving, the optimal engine RPM for most fuel-injected cars is around 2200–2500. Regardless of the gear, maintain the engine RPM within this range. Too low RPM will make the car sluggish, consume fuel without moving, and damage the engine; too high RPM increases unnecessary fuel consumption and also harms the engine. 2. Maintain Speed: The most fuel-efficient driving condition is maintaining a constant speed in a straight line. The most fuel-efficient speed for small-displacement cars is 60–80 km/h, while for medium-displacement cars, it is 80–100 km/h. Driving at the economic speed ensures the best fuel efficiency.
15
3
Share

What happens if you drive on the highway without a driver's license?

The Article 95 of the Road Traffic Safety Law stipulates: If you forget to bring your driver's license on the highway, according to the road traffic law, you will be deducted 1 point on your license and fined. To avoid this situation, before driving on the highway, be sure to check various conditions of your car. Below are the basic checks before driving on the highway: 1. Check if the windshield washer fluid is depleted and if the wipers are functioning properly; 2. Ensure the brakes, handbrake are reliable, the brake fluid is normal, and the spare tire's pressure is correct; 3. Inspect the tires for nails and use a tire pressure gauge to test the tire pressure.
9
4
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.