What Causes the Buick Excelle to Require Multiple Ignition Attempts to Start?
1 Answers
The reasons why the Buick Excelle requires multiple ignition attempts to start are carbon buildup in the throttle body, obstructed fuel lines, and poor fuel injector atomization. Below are the specific causes and corresponding solutions: Carbon buildup in the throttle body: If there is significant carbon buildup in the throttle body, it directly affects the air intake. Pressing the accelerator controls the opening and closing of the throttle body, which regulates the amount of air intake. If the air intake is reduced, the vehicle may fail to start. Even if it does start, the engine's power will be severely limited. The solution is to clean the carbon buildup from the throttle body. Obstructed fuel lines: Also known as a fuel system malfunction. If the spark plugs fail, it directly prevents the engine from starting. A damaged fuel pump or clogged fuel lines can lead to insufficient fuel supply, resulting in a low concentration of the air-fuel mixture, making it difficult for the spark plugs to ignite the mixture and preventing the car from starting. In this case, it is necessary to clean the fuel coarse and fine filters and unclog the obstructed fuel lines. Poor fuel injector atomization: If the car is started cold, the fuel injector may spray a poorly atomized air-fuel mixture, allowing a large amount of liquid fuel to enter the cylinders. This directly results in an overly rich mixture, making it difficult for the spark plugs to ignite and preventing the car from starting. In this situation, it is advisable to warm up the car before starting.
