Why Won't My Buick Envision Start?

[LaLucille]

Here are the specific reasons why the car won't start: Fuel system issues: Clogged low-pressure fuel line, loose or leaking fuel pipes, air in high-pressure fuel line, poor technical condition of fuel injectors, incorrect fuel injection timing angle. Starting system issues: Power supply failure, poor contact of electromagnetic switch, poor contact between starter motor commutator and brushes, clutch slippage in starter transmission mechanism. Insufficient cylinder compression pressure: Damaged cylinder head gasket causing air leakage, improper valve closure leading to air leakage, worn piston and cylinder liner causing air leakage. Insufficient air intake: The usual cause of insufficient air intake is a clogged air filter element.