How to Determine if an Engine Has a Misfiring Cylinder?

2 Answers
MayaMarie
07/29/25 11:44pm
Methods to determine engine misfiring: 1. Remove the ignition wires one by one. If the shaking worsens, it is not a misfiring cylinder; if there is no change, that cylinder is misfiring. 2. Generally, the fuel injector will still spray fuel even when a cylinder is misfiring. In severe cases, this can cause the catalytic converter to overheat and become damaged. Therefore, when performing the ignition wire removal test for misfiring, the duration should not be too long to avoid causing new faults. 3. Engine misfiring can lead to increased fuel consumption, black smoke emission, loss of power, reduced horsepower, inability to accelerate, severe shaking, increased driving noise, and poses significant safety risks, especially on uphill starts. The engine load increases in misfiring vehicles, making the body shake more noticeably, which can easily lead to sudden stalling.
Was this review help?
11
2
Share
VonKimberly
08/16/25 3:01am
As a seasoned driver, I've found the most intuitive way to determine if an engine is misfiring is by listening to the sound and feeling the vibrations. When the engine is running, if one or more cylinders aren't functioning properly, you'll hear distinct 'popping' sounds or uneven operation noises that are much rougher than usual. When starting the car, the idle will shake continuously, with noticeable vibrations in the steering wheel or seats. During acceleration, you'll experience power lag - the car responds slowly when you press the accelerator, and fuel consumption inexplicably spikes. I've encountered this situation before due to faulty spark plugs or ignition coils. Another simple check is observing the exhaust pipe: misfiring may cause white or black smoke. Don't ignore the dashboard warning lights - when illuminated, use an OBD2 scanner to read the codes for confirmation. Timely action is crucial, as neglecting it can damage the engine and cost more money. It's best to turn off the engine and find a safe place to park first.
Was this review help?
5
1
Share
Expand All
More Forum Discussions

What to Do When a Car Rolls Over?

Solutions for when a car rolls over: 1. Stay calm and avoid making fatal mistakes due to excessive panic; 2. Immediately turn off the engine to prevent hazards such as fire or explosion; 3. Adjust your position, unbuckle the seatbelt, and lower your body. If you cannot open the door, you can choose to break the side window to escape. When striking the side window, aim for the edges of the glass rather than the center; 4. After escaping, do not rush out of the car recklessly. First, observe the surroundings and ensure it is safe before exiting, especially on highways. Make sure to move outside the guardrail and stay as far away from the accident scene as possible to ensure your safety and avoid secondary accidents.
17
0
Share

Are the engines of the second-generation and third-generation Haval H6 the same?

The engines of the second-generation and third-generation Haval H6 are different. The second-generation model uses a low-power version of the 1.5-liter turbocharged engine and a 2.0-liter turbocharged engine, while the third-generation model uses a high-power version of the 1.5-liter turbocharged engine. The Haval H6 is a compact SUV under the Haval brand, with body dimensions of 4640mm in length, 1825mm in width, and 1690mm in height, and a wheelbase of 2680mm. The vehicle's exterior design creates a nearly perfect body posture, using dynamic micro-curves to outline the side profile, giving the car a sharp and poised appearance ready to take off.
9
1
Share

How many cylinders does the Volvo XC90 have?

The Volvo XC90 is a four-cylinder vehicle. It is a mid-to-large luxury SUV under the Volvo brand, equipped with two types of engines: a 2.0-liter turbocharged engine and a 2.0-liter twin-charged engine. The Volvo XC90 features a stylish and elegant exterior, a minimalist interior with a distinct sporty style, rich configurations, spacious and ample room, and excellent safety performance. The vehicle's dimensions are 4807mm in length, 1898mm in width, and 1784mm in height, with a wheelbase of 2857mm. Its overall design appears well-proportioned and comfortable, with smooth lines and a pronounced muscular look, complemented by a rectangular grille that enhances its sophisticated appearance.
17
5
Share

Does the Sylphy come with ABS?

The Sylphy comes with ABS, which is an electronic device that prevents wheel lock-up during emergency braking or braking on slippery roads to maintain vehicle stability. The front fascia of the Sylphy adopts Nissan's new VMotion 2.0 family design language, featuring a prominent V-shaped grille paired with newly styled LED headlights on both sides. The Sylphy is equipped with a third-generation HR16 1.6L naturally aspirated engine. Its body dimensions are 4641mm in length, 1815mm in width, and 1450mm in height, with a wheelbase of 2712mm. The body type is a 4-door, 5-seater sedan.
7
1
Share

How to Use the Manual Mode in a Tiptronic Transmission?

The method of using the manual mode in a tiptronic transmission is: To switch to manual mode, simply shift the gear lever to the M position. In manual mode, you can shift gears up or down by moving the shift lever accordingly, and the gear changes can be performed while the vehicle is in motion without the need to depress the clutch or brake. A tiptronic transmission combines the manual and automatic shifting modes of a car. The manual mode allows drivers to freely adjust gears and engine speed, providing a thrilling driving experience with a strong sense of sportiness and driving pleasure. Essentially, a tiptronic transmission is still a type of automatic transmission that simulates the operation of a manual transmission through an electronic control system. Its introduction offers drivers greater operational freedom, allowing them to choose the most suitable gear and shifting timing as they see fit.
12
4
Share

Can You Shift from D to S Gear While Driving an Automatic Car?

Automatic cars can shift from D to S gear while driving without the need to press the brake or come to a stop. The D gear is the drive gear, where the vehicle prioritizes comfort and fuel efficiency. The S gear is the sport mode, which focuses on high performance. When shifted into S gear, the transmission delays upshifting to allow the engine to deliver greater power. Situations where S gear is not suitable include: 1. High-speed driving is not ideal for S gear, as it is designed to downshift for acceleration, leading to mismatched speed and RPM, increased noise, and higher fuel consumption; 2. Coasting is not recommended in S gear, as it can cause significant wear and tear on the transmission in a short period.
3
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.