What are the reasons why the Besturn B50 suddenly stalls and fails to start?
2 Answers
Here are the specific reasons why the Besturn B50 suddenly stalls and fails to start: 1. Carbon buildup in the car: Accompanied by slight shaking at idle, cleaning the throttle and fuel injectors can resolve the issue. 2. Weak spark plug ignition energy: Failure to replace the spark plugs after the maintenance cycle leads to a severe drop in ignition energy, causing misfires. 3. Insufficient low fuel pressure: Low fuel pressure in the low-pressure fuel circuit directly causes the engine to require a second ignition. Specifically, check the fuel pressure regulator, fuel pump, fuel filter, and internal pipelines. 4. Battery depletion: You need to find another car or use another battery to jump-start it.
I encountered a similar situation not long ago—the car suddenly stalled while driving and wouldn’t start no matter what. This is usually caused by issues in a few key areas: A dead battery is the most common culprit, especially with older batteries that have been in use for years. Oxidation at the terminals or insufficient charge can prevent the starter from turning. A faulty fuel pump is another frequent problem—once, my car stalled on the highway because the fuel pump suddenly failed, cutting off fuel supply entirely. Issues with the ignition system can also be troublesome; severe spark plug carbon buildup or a shorted ignition coil can prevent the engine from firing. Another often-overlooked issue is a faulty crankshaft position sensor—if this fails, the engine control unit won’t receive a signal, causing the engine to shut down. A broken alternator is even more frustrating, as it drains the battery while driving until the car loses power completely. If this happens, don’t panic. Try jump-starting the car or checking the dashboard warning lights. If that doesn’t work, call for a tow truck immediately. Safety comes first—don’t linger too long in the middle of the road.
