···
Log in / Register

What Causes a Buick LaCrosse Engine to Stall While Driving?

4 Answers
SanJosie
07/29/25 11:06pm
Buick LaCrosse engine stalling while driving is likely due to an electrical circuit malfunction. This could occur due to a low-voltage power interruption during driving, causing the engine to stall. In this case, it is recommended to primarily inspect the ignition and starter switches, as well as the fuse box. A short circuit in the low-voltage wiring can lead to intermittent stalling. The reasons for engine stalling while driving are as follows: 1. Electrical Circuit Malfunction: Stalling during driving may be caused by a low-voltage power interruption. It is necessary to check the car's starter and fuse box for any faults. If you are unable to resolve the issue yourself, it is advisable to call for roadside assistance to avoid further complications. 2. Abnormal Fuel Supply: If the car suddenly stalls while driving, check whether the fuel level is sufficient. If the fuel level is adequate but the engine fails to start, it may be due to the ignition system working while the fuel supply is insufficient. Open the carburetor cover and observe the fuel level in the float chamber to determine if the stalling is caused by a blocked fuel line.
Was this review help?
13
0
Share
VanBennett
08/16/25 1:08am
Sudden engine stalling while driving is really terrifying. I've encountered this issue several times with my Buick LaCrosse, and the causes vary. The most common is fuel pump failure, where insufficient oil pressure causes the engine to stall mid-drive; clogged fuel lines can also trigger problems, such as using low-quality fuel or not replacing a dirty fuel filter on time. There are also ignition system issues, like aging spark plugs or broken coils. On the electronic side, false alarms from ECU sensors can cause the engine to shut down; if the battery is nearly dead or the alternator isn't performing, the engine may stall at idle. Stalling while driving is extremely dangerous—pull over immediately, turn on the hazard lights, and avoid restarting the car to prevent engine damage or accidents. Regular maintenance should focus on cleaning the fuel system and electronic components; don't skimp on these costs, or you might end up stranded on the road with bigger troubles.
Was this review help?
5
3
Share
Expand All
Keegan
10/18/25 6:52am
I experienced a stall while driving my Buick LaCrosse on the highway, which really scared me. It was most likely due to a faulty fuel pump failing to supply fuel, or poor fuel quality with moisture. Electrical issues are also common causes, such as short circuits or overheated relays cutting power; if sensors malfunction, the engine control unit gets confused and shuts down. Additionally, aging ignition coils or loose timing chains could be culprits. During routine maintenance, prioritize checking the fuel pump and battery condition. If a stall occurs, immediately activate hazard lights and pull over for inspection—don't push your luck. For prevention, refuel at reputable stations and test battery voltage before long trips. Buick models are prone to these issues, so early detection brings peace of mind.
Was this review help?
18
1
Share
Expand All
DiAubree
12/01/25 7:28am
Engine stalling in the Buick LaCrosse is mostly caused by fuel system or electronic faults. The most common issue is interrupted fuel supply from the fuel pump, while short circuits or relay failures can also trigger it. ECU sensor signal errors may lead to system crashes, resulting in stalling. Stalling while driving poses a significant hazard, requiring immediate stopping with hazard lights on. Regular maintenance focusing on fuel system cleaning and electronic diagnostics can prevent such occurrences.
Was this review help?
17
2
Share
Expand All
More Forum Discussions

To what extent must a vehicle be submerged to be considered totaled?

If a vehicle is submerged up to the engine hood, it is sufficient to be considered totaled. Even if not totaled, the repair cost could reach 80% of the vehicle's value. Insurance companies will cover the claim for a water-damaged vehicle if the owner has commercial vehicle damage insurance. Another scenario is when the repair cost exceeds the insured value of the vehicle. Water-damaged vehicles are categorized into six levels, with Level 3 being particularly severe. For sedans, which have relatively low ground clearance, the water level may reach the seat cushions inside the vehicle, and the center console may be completely submerged. Classification of water-damaged vehicles: Level 1: Water reaches the vehicle's chassis. Level 2: Water rises to half the height of the wheels, and the interior begins to take in water. Level 3: Water submerges the tires, and both the seat cushions and center console inside the vehicle are flooded. Level 4: Water enters the engine intake pipe, and the dashboard is about to be submerged. Level 5: The entire engine compartment is submerged. Level 6: The entire vehicle is completely underwater. How to handle a submerged vehicle: If the vehicle has not stalled, turn off the engine immediately. Disconnect the battery by removing the negative terminal. Take photos of the submerged vehicle for insurance claims. Contact the insurance company and arrange for a tow truck for rescue.
3
2
Share

Who is responsible for an accident during the third driving test?

Before determining liability for an accident during the third driving test, it is essential to distinguish between different scenarios. The details are as follows: 1. First scenario: If the student and the instructor are driving normally and the vehicle itself is not out of control, then if the other driver violates traffic rules, the other party will bear full responsibility. However, if the injured party is a pedestrian, even if they were walking in violation of traffic rules, the student and the driving school will still bear 10% of the responsibility. For the student, this 10% responsibility can be exempted, but the driving school cannot be exempted. 2. Second scenario: If the accident is caused by operational errors by the student and the instructor, then the student and the instructor are responsible. The student can file a lawsuit with the local traffic authorities, pointing out that the accident was caused by the driving school and the instructor. At the same time, road safety laws also have relevant provisions: if there is an instructor or safety officer in the co-pilot seat, even if a traffic accident occurs, the student does not have to bear responsibility, and the instructor or safety officer will be responsible. 3. Third scenario: When accountability is stricter, monitoring personnel will also bear some responsibility. However, no matter what kind of traffic accident occurs, the instructor and safety officer cannot be exempted from responsibility, while the student does not have to bear responsibility.
8
1
Share

How Many Liters of Engine Oil Does a 1.5L Engine Require?

This type of engine requires 3.5 to 4.5 liters of engine oil. Engine oil is something every car owner will encounter during vehicle usage. It is often referred to as the 'blood' of the engine, as an engine cannot operate properly without it. Here are some additional details: 1. Functions of Engine Oil: Engine oil serves not only as a lubricant but also performs cleaning, sealing, cushioning, rust prevention, and heat dissipation functions within the engine. During operation, it forms a protective oil film on the surfaces of various engine components, preventing direct contact and friction between parts. Without this oil film, direct metal-to-metal contact would accelerate engine wear and generate excessive heat instantly, which can cause severe damage to the engine. Over time, engine oil loses its effectiveness, so regular oil changes are necessary. It is recommended to change the engine oil at scheduled intervals during routine vehicle maintenance. 2. Oil Filter: The oil filter should be replaced every time the engine oil is changed. The oil filter is responsible for filtering impurities from the oil. Without it, the oil would become heavily contaminated after some use, negatively affecting engine lubrication and cooling. Always adhere to scheduled maintenance for your vehicle, using genuine parts and fluids. Regular maintenance can significantly extend your car's service life.
16
2
Share

Is There a Warranty When Buying a Car from an Auto Trading Company?

Buying a car from an auto trading company does come with a warranty. The warranty provided when purchasing a car from an auto trading company is the same as that from a 4S store, and the vehicle is covered by a nationwide warranty. However, auto trading companies may not necessarily allow registration under an individual's name, so it's best to choose an auto trading company that permits individual registration. Below are the relevant concepts in after-sales service: 1. Warranty: The product quality must meet standards and be guaranteed. In fact, a warranty is a quality assurance for the product, which is a basic attribute any product should have. It should not be misunderstood as providing lifetime maintenance. 2. Maintenance Service: This only provides after-sales maintenance service guarantees, which can be either free or paid. Damage caused by human factors or not covered under the manufacturer's standard service policy requires payment, while those within the standard service policy are free. 3. Free Repair: This term originates from the national "Three Guarantees" policy, referring to completely free repair services provided by the manufacturer. However, there are usually detailed warranty descriptions for different components of the product. It can be understood that free maintenance service is equivalent to free repair. 4. Free Return and Replacement: These two also originate from the national "Three Guarantees" policy, referring to the manufacturer's free return and replacement services provided within the specified period if the product has quality issues that meet the return or replacement service terms.
15
2
Share

What is the maximum load capacity for a 4.2-meter vehicle to be allowed on highways?

According to current policies of the Ministry of Transport, a 4.2-meter blue-plate truck with a load capacity of less than 18 tons is permitted on highways. It must also comply with the load capacity specified in the vehicle registration certificate. All trucks must undergo weighing before entering highways, and those found to be illegally overloaded or exceeding limits will be prohibited from entering. Additional details regarding overloaded vehicles are as follows: 1. Overload conditions: Illegally overloaded or over-limit vehicles must choose the nearest unloading site to remove excess cargo and rectify the violation, and will be dealt with by local traffic management authorities and transportation law enforcement agencies according to the law. Overloading is not solely determined by the total weight of the vehicle and cargo but also by the external dimensions. The following conditions classify a cargo transport vehicle as overloaded: total height from the ground exceeding 4 meters; total width exceeding 2.55 meters; total length exceeding 18.1 meters. 2. Overload penalties: (1) Carrying cargo exceeding 30% of the approved load capacity or illegally carrying passengers results in a 6-point deduction. (2) Carrying cargo exceeding the approved load capacity but less than 30% results in a 3-point deduction. (3) If the total height from the ground does not exceed 4.2 meters, total width does not exceed 3 meters, and total length does not exceed 20 meters, a fine of up to 200 yuan may be imposed. (4) If the total height from the ground does not exceed 4.5 meters, total width does not exceed 3.75 meters, and total length does not exceed 28 meters, a fine between 200 and 1,000 yuan may be imposed.
6
0
Share

How to correctly align piston rings?

Adjacent piston ring gaps must be installed 180 degrees apart. This installation method is more effective in preventing gap overlap compared to arranging them at 120 degrees. The following are reasons for engine oil burning: 1. Poor sealing: Early wear of cylinder liners and piston rings increases the clearance between cylinders and pistons as well as the gap of piston rings, resulting in poor sealing. 2. Low-quality piston rings: Most piston rings on the market are made as rectangular rings, which have poor oil scraping performance and are one of the main factors causing engine oil leakage. 3. Gap overlap: When piston ring gaps are too close or overlap, especially if oil ring gaps overlap, it causes oil to leak and overflow.
5
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.