Why Your Ignition Won't Turn: Diagnosing the Real Cause
Ignition problems fall into a handful of repeating patterns, and identifying the right one is the first step toward a real fix. The most common culprits are a worn-out key that has lost its precise cut depth over years of use, a cylinder with failed internal wafers or springs, a binding steering column lock that is applying lateral pressure to the cylinder, and foreign matter — sand, grit, or broken key fragments — jammed inside the keyway. In Palo Alto's mild but occasionally dusty climate, debris intrusion is more common than most drivers realize, particularly in vehicles parked outdoors near construction zones along Page Mill Road or El Camino Real. Our technicians assess all of these possibilities before recommending a repair path, because misdiagnosing the cause leads to parts being replaced that didn't need to be.
There is also a category of failure that involves the ignition switch itself — the electrical component that sits behind the mechanical cylinder — rather than the cylinder you insert the key into. These two components are often confused, but they require completely different service approaches. A skilled technician will distinguish between them quickly, saving you the cost and time of unnecessary parts. Our mobile units arrive equipped for both mechanical and basic electrical ignition diagnostics, so you get an accurate picture of what is actually wrong before any commitment is made.