Reasons for the Cruze making a clicking sound but not starting
1 Answers
Fuel system, air intake system, and electrical system issues. Below are the related introductions to fuel system, air intake system, and electrical system problems: 1. Fuel system: Fuel pump failure - no fuel means no ignition; High-pressure fuel pump failure - unable to inject fuel; Clogged fuel injectors - after high-pressure fuel comes out from the distribution pipe, it cannot be injected into the cylinder (less likely). 2. Air intake system: Throttle position sensor failure (the engine calculates fuel injection quantity based on the air intake through the throttle. If the sensor fails, the ECU assumes no air is entering and won't inject fuel). Camshaft position sensor failure - the ECU doesn't receive camshaft position information, the intake valves won't open, and ignition cannot occur. 3. Electrical system: Ignition coil problems - no high-voltage spark. Or insufficient high-voltage spark energy.