What Happens When a Car's Solenoid Valve Fails?

[GraceRose]

Failure of a car's solenoid valve can affect normal driving operation. Specific symptoms: Engine idle speed fluctuates unstably between high and low, with poor acceleration; gear shifting causes jerking; engine is prone to stalling or difficult to start; air conditioning usage leads to stalling and other fault conditions. Check for poor power connection; verify power voltage is outside operational range; coil desoldering; coil short circuit; improper working pressure difference; excessive fluid viscosity; excessively high frequency; or reached service life. Solenoid Valve: Automotive solenoid valves are actuators in electronic control systems. By function, they can be categorized as shift solenoid valves, lock-up solenoid needle valves, and pressure regulating solenoid needle valves. By operation mode, they are classified as on-off solenoid valves and pulse-width modulated solenoid valves.