Why Won’t My Car Start? Common Causes and How to Fix Them
Why Won’t My Car Start? Common Causes and How to Fix Them
It’s the worst feeling; you turn the key (or push the button) – and nothing. Your car won’t start, and your day suddenly grinds to a halt.
We're here to help, letting you know the most common reasons your engine isn’t firing up and what you can do to fix it. With Vixa as your car health assistant, car troubles won’t ruin your day.
What happens when your car won’t start?
First things first: if your car won’t start, avoid repeatedly trying the ignition as this can drain the battery further.
But what's going on? A car that refuses to start doesn’t always behave the same way. Here are a few clues that can help pinpoint the problem:
Clicking sounds when you turn the key might mean you have a flat battery.
Total silence could mean a dead battery or ignition fault.
A struggling engine sound could indicate low battery or starter motor issues.
It’s also important to distinguish a non-start from an engine stall. Instead of not starting at all, an engine stall happens when you successfully start the car, but it cuts out while driving or idling.
Common reasons your car won’t start
Several things can stop your car from starting. The most frequent issues include:
Flat or faulty battery
Your battery might be completely dead or just not supplying enough charge.
Starter motor failure
If you hear a single loud click (or nothing at all) but your electrics still work, your starter motor could be to blame.
Empty or contaminated fuel tank
You might be running low without realising, or your fuel could be contaminated. Fuel injector problems and a failing fuel pump can also prevent the engine from getting the fuel it needs to run.
Faulty ignition switch
If your dashboard lights up but the engine doesn’t even try to start, a worn or broken ignition switch might be the issue.
Key fob issues
With push-button start systems, a dead key fob battery or unrecognised key can prevent the car from starting. Try using your spare fob if you have one.
Blown fuses or electrical faults
A blown fuse can disrupt important systems. Check your vehicle handbook to locate and inspect them – it’s often a simple fix.
Don’t overlook the obvious
Sometimes, the solution is simpler than you think:
Is the engine immobiliser activated? Your car might not recognise the key – use a spare key if one’s available.
Is the steering wheel locked? This can prevent the key from turning. Try gently moving the wheel side to side while turning the key.
Could it be the timing belt? If you hear unusual ticking or the engine turns over but doesn’t start, the timing belt might have failed.
What to do if your car won’t start
If your car won’t start, stay calm and work through a few checks:
Check your dashboard warning lights – they might point you to the issue.
Use the Vixa app to check on battery health.
Look and listen for telltale signs – slow cranks, strange noises or flickering lights might offer some clues.
Try a jump-start, if you’re confident doing it and it’s safe to do so. Your car manual can help with this.
Call for help – If nothing else works, you should call your recovery services such as AA roadside assistance.
How to prevent your car failing to start
Prevention is the best cure – and keeping your car in good health doesn’t have to be difficult:
Keep your battery charged and tested
Batteries degrade over time. If yours is a few years old or your starts are sluggish, it’s time for a check-up. Vixa can alert you to early warning signs that your battery needs looking over.
Watch for electrical issues
Flickering lights or unresponsive features can be red flags.
Keep your fuel system clean and topped up
Avoid running low on fuel and stick to reputable petrol stations. If your car sits for long periods, fuel stabilisers might help.
Use the Vixa app for car health insights
Our smart system keeps an eye on your car’s performance and battery levels – helping you avoid a nasty surprise.
Caring for your car with Vixa
We make car maintenance simple, smart and stress-free.
Monitor your battery with AI-powered diagnostics.
Get alerts when something doesn’t look right.
Book trusted help from the app with our Mobile Mechanics that come to you, or AA approved garages.
Stay in control of your car’s health with glanceable insights on your phone.