You turn the key, nothing happens. You try again — the engine fires right up. Next week, same thing at the Vons parking lot on South Lake Avenue. Then it works fine for three days straight.
An intermittent ignition failure is one of the most frustrating car problems out there because it’s unpredictable. You never know if you’ll get stranded after grabbing coffee on Colorado Boulevard or stuck in the parking structure at Paseo Colorado. We handle ignition repair in Pasadena calls like this every week, and the questions below come up almost every time.
1. Why Does My Ignition Work Sometimes But Not Others?
The ignition switch is a mechanical and electrical component. Over time, the internal contacts wear down. When they’re partially worn, they might make a connection one moment and lose it the next. Temperature changes, vibration from driving on rough stretches of the 210, or even the weight of a heavy keychain can affect whether the worn contacts connect properly.
There are a few common culprits:
- Worn ignition switch contacts — the most frequent cause we see
- A damaged wafer inside the lock cylinder — small spring-loaded wafers can crack or stick
- Electrical issues — corroded wiring or a loose connector behind the switch
- A worn key — if your key is old and rounded off, it may not engage the cylinder correctly every time
The intermittent part is actually a warning sign. It means the component is failing but hasn’t completely given out yet. That’s the window to fix it before you’re stranded.
2. Can a Locksmith Fix an Ignition Switch, or Do I Need a Dealer?
An automotive locksmith can absolutely handle this — and usually faster and cheaper than a dealership. Our technicians carry ignition cylinders, switches, and programming tools for most makes and models right in the van. We’ve done ignition repair in Pasadena driveways, apartment complexes off Fair Oaks Avenue, and parking lots near Old Town without the car needing a tow.
Dealers are sometimes necessary for certain luxury or late-model European vehicles with complex immobilizer systems. But for the vast majority of cars on the road — Honda, Toyota, Ford, Chevy, Nissan, Hyundai — a qualified locksmith handles the repair on-site.
3. How Much Does Ignition Repair Cost in Pasadena?
Pricing depends on the vehicle and what exactly needs replacing. Here’s a general range for the Pasadena area:
- Ignition cylinder replacement: $150–$350
- Ignition switch (electrical) replacement: $120–$280
- Full ignition assembly with key: $250–$450
- Transponder key reprogramming (if needed): $75–$150 additional
Compare that to dealer quotes, which often land between $400 and $800+ once you factor in towing, labor rates, and the wait. We give you the price upfront before starting any work.
4. Is It Safe to Keep Driving With an Intermittent Ignition Problem?
Short answer: no. Here’s why.
A failing ignition switch can cut power while you’re driving. That means potential loss of power steering and power brakes — mid-turn on a busy road like Foothill Boulevard or while merging onto the 134. It can also prevent the car from starting in situations where you need to move quickly, like a car lockout in Pasadena situation that turns into something worse.
If your ignition is acting up, get it looked at soon. The repair is straightforward. The consequences of ignoring it aren’t.
5. How Long Does the Repair Take?
Most ignition repairs take between 30 minutes and an hour on-site. We come to wherever the car is — your home near the Caltech campus, your office on Green Street, or a parking lot off Arroyo Parkway. No tow truck needed in most cases.
Some vehicles with advanced anti-theft systems take a bit longer because the new ignition needs to be programmed to communicate with the car’s computer. Our vans carry the diagnostic equipment for that, so it still gets done in one visit.
6. Should I Replace the Ignition or Just the Key?
Good question — and one we get a lot. If your key is visibly worn down (compare it to your spare if you have one), starting with a new key is the cheaper option. A fresh-cut key might solve the intermittent problem for $80–$150.
But if a new key doesn’t fix it, or if you’re experiencing electrical symptoms like dashboard lights flickering, accessories cutting out, or the car stalling, the switch or cylinder is the issue. We can diagnose which one on the spot.
If you’re dealing with an ignition that’s been giving you trouble for a while, it’s usually smarter to replace the cylinder. Putting a new key into a worn cylinder is a temporary fix at best.
Need Help With Your Ignition in Pasadena?
The Locksmith HQ Team handles ignition repair in Pasadena every week — from Old Town to East Pasadena, South Lake District to the neighborhoods around the Rose Bowl. We show up with the parts and tools to get it done on the first visit.
Check out our full range of Pasadena locksmith services or give us a call at (818) 398-9391 to describe what’s going on with your ignition. We’ll tell you what it likely needs and what it’ll cost — no surprises.
