Sitting in your idle Chevy, turning the key, and hearing nothing but silence can be very aggravating. A Chevy that fails to start leaves you immobilized and uncertain about the cause. Luckily, some common problems lead to Chevy Nubira not starting, many of which can be fixed DIY or quickly by a mechanic.
In this comprehensive guide, we'll explore the fourteen most common reasons your Chevrolet Nubira doesn't start and provide helpful suggestions to get your car started again.
The most common cause a Chevrolet doesn't crank is a dead or drained battery. Your battery provides the initial jolt of electricity to turn over the engine and get it running.
Indications of a dead battery:
- Silence upon turning the key – no clicking or turnover
- Accessories not powering on
- Hard time starting in cold weather
How to Fix It: Keep jumper cables on hand for a dead battery emergency. Jump starting your Chevrolet Nubira using another vehicle or jump box can supply enough juice to get it started.
You can also clean corroded battery terminals if they prevent a good connection. If problems continue, have your battery tested – it may need recharging if worn out.
If your battery tests fine but your Chevrolet Nubira still won't crank, the issue may be a faulty alternator. This vital part charges your battery when running and energizes the electronics.
Signs of a bad alternator:
- Battery warning light coming on
- Electronics dimming
- Hard time starting, particularly following short trips
The Fix: Get your alternator inspected right away by a mechanic. A bad alternator can quickly drain your battery. This will need to be replaced by an experienced mechanic.
Bad or Fouled Spark Plugs
Spark plugs ignite the fuel/air mixture in the cylinders to run your car. When they are fouled or worn out, your Nubira may not start due to no spark.
Signs of bad spark plugs:
- Poor fuel economy
- Rough idle
- Engine hesitating
The Fix: Spark plugs need periodic replacement as they wear out. Most last 30k+ miles. Have your plugs checked and swap any bad ones. Using quality gas prevents buildup.
Ignition System Issues
Issues with ignition components like the switch, lock cylinder, fob, or wiring can prevent your Chevrolet from starting.
Signs of ignition trouble:
- No noise upon turning key
- Dashboard malfunctioning
- Key won't turn
The Fix: For fob issues, try the battery. For other problems, have the system diagnosed and fixed professionally. If you need a new Chevy key fob you can get one online here.
The starter motor engages when you turn the key to crank the engine. If it's damaged, your Chevy Nubira may not turn over.
Symptoms of a bad starter:
- No noise upon turning key
- Clicking but no turnover
- Unusual noises
The Fix: Have your starter tested and replaced if faulty. This requires the help of a professional mechanic to diagnose and repair.
Not in Park or Neutral
If your transmission isn't in Park or Neutral, your Chevy's safety features will prevent it from cranking.
The Fix: Shift into Park/Neutral and try once more. If it only starts in one gear, you may have a faulty neutral safety switch needing repair. This will need to be repaired by a local mechanic near you.
Blocked or Clogged Fuel Filter
A blocked fuel filter can constrain fuel delivery to the engine, preventing your Chevy Nubira from turning over.
Signs of a clogged filter:
- Hard time starting
- Engine sputtering
- Decreased fuel economy
The Fix: Change the filter per your schedule or if suspected clogged. Use quality gas and change regularly. You can have a local mechanic repair this for you, or repair it yourself, maybe with the help and guidance of an online mechanic.
Faulty Fuel Pump
The fuel pump transfers gas from the tank to the engine. If it fails, your Chevy won't start due to no fuel.
Signs of a bad pump:
- No sound upon turning key
- Difficulty starting
- Stalling when running
The Fix: Have your pump tested. If faulty, a mechanic near you will need to replace it.
Low Engine Compression
Proper compression is required to combust the air/fuel mixture. Low compression from leaks can lead to a no start.
Signs of compression issues:
- Difficulty starting
- Rough idle
- Lack of power
The Fix: Testing can confirm low compression. For diagnostics and carrying out this repair, a local mechanic is usually needed and will have to replace the worn engine components.
Timing Belt Failure
The timing belt synchronizes the camshaft and crankshaft. If it breaks, the valves and pistons won't be timed properly and your Chevy Nubira won't start.
Symptoms of a bad timing belt:
- No start
- Unusual ticking noise
The Fix: Have your belt checked and fixed right away if broken. This requires a local professional mechanic to replace the timing belt of your Chevy Nubira.
Loose or Detached Battery Cable
Symptoms of a bad cable:
- Corroded terminals
- Power loss from wiggling cables
- Frayed wiring
The Fix: Scrub corroded terminals and tighten loose connections. Damaged cables need replacement. You can get expert Chevy mechanic advice and guidance online or with a local mechanic.
Relays control power to components like the starter, fuel pump, and computer. Failure can prevent your Chevy Nubira from starting or running right.
Identifying relay problems:
- Swap relays to test
- Have relays checked by a mechanic
The Fix: Faulty relays must be replaced, often after a larger diagnostic. You will likely need a local mechanic to diagnose if the faulty relay is preventing your Chevy from starting.
Low Fuel or Empty Tank
Running your tank bone dry can cause a no-start due to lack of fuel. This seems obvious however it often happens because of an inaccurate or broken fuel gauge.
The Fix: Keep your tank at least 1/4 full to avoid unexpected emptying. If issues persist, have your fuel sender unit checked by a professional mechanic.
Sometimes an engine can flood with too much fuel, preventing starting due to wet spark plugs. This is most common in older carbureted engines.
The Fix: Press the gas pedal fully and crank briefly to clear the system so the plugs can spark. If problems continue, have the carburetor adjusted by a professional local mechanic.
Top 3 Ways To Get a Mechanics Help
With so many potential causes for a no start problem, it can be difficult to determine the exact problem yourself. In some cases, getting assistance from an experienced mechanic can be time-saving and give you peace of mind.
These are the 3 ways to get a mechanic's help in starting your Chevy again.
1. Local Auto Repair Garage Near You
This is the regular way to get it repaired, however, it can be very wasteful in time and money, transporting your vehicle to them, plus expensive garage fees as they often have expensive overhead costs etc, that they have to pass on to the customer.
2. A Mobile Mechanic Near You
Having a qualified mobile mechanic come to your Chevy and repair it on-site can be a great time and money saver. The best mobile mechanics we can recommend in the USA are RepairSmith and YourMechanic. We have recommended them thousands of times, and they both have great prices, services and coverage across most of the USA.
In the UK the best mobile mechanic we can recommend is Fixter, they will come pick up your car, take it get repaired, and deliver it back to you. You can get an instant free quote on their official websites by clicking the name. We have tested, vetted, and can heartedly recommend each of these services to get your Chevy Nubira|Chevrolet Nubira starting again ASAP.
3. Chat with a Chevy Mechanic Online
This is a fantastic choice for most DIYers or car enthusiasts. It's many times a simple repair you can do yourself, like changing or powering up the battery. In these cases, if you know what to do step by step, you can do it on your own, you do not have to pay a mechanic in person. Alright, it's your lucky day, an online mechanic can supply all the help, guidance, and advice you require, right away by online chat. You can then execute the easy mend yourself.
The top online mechanic we recommend is JustAnswer, and through our link, you can get a free trial of their service for just $5, request unlimited questions for a week, get the help you need, and you don't have to continue the service after that. We love JustAnswer for this purpose, professional auto mechanic help for just $5 is an unmatchable price.
The qualified mechanics at JustAnswer's Ask a Mechanic service are accessible 24/7 to provide virtual troubleshooting and advice. The benefits of querying a mechanic online include:
- Convenience: Get help from your house without having to schedule an appointment or wait at a shop.
- Fast replies; Mechanics answer back quickly with potential reasons and solutions based on your description.
- Cost savings: Pay per question rather than full diagnostic fees – great for basic troubleshooting.
- Documentation: All conversations are logged in writing, providing helpful reference.
- Expert knowledge; Experienced licensed mechanics have the knowledge to troubleshoot Chevy Nubira|Chevrolet Nubira no starting issues with ease.
You will get matched with the best auto mechanic for your particular case, it doesn't matter if it's a Nubira or your Chevrolet Omega won't start, the expert Chevy mechanic you are paired with, will be the best for the job.
So next time you find yourself searching online for something like “Chevy clicks but wont start“, consider our free online Chrevrolet mechanic service. In just minutes, you can leverage expert Chevrolet knowledge to help get your beloved Nubira fired up again.
FAQs (Frequently Asked Questions)
Why is my Chevy car not cranking but I have power?
If your Chevrolet won't start but the accessories and dashboard power on, the most likely culprits are problems in the starter system, ignition switch, or neutral safety switch. Faulty ignition components prevent the engine from cranking even when battery power is present.
Why does my Chevy have power but doesn't crank?
When your Chevy has power to the electronics and dashboard but doesn't start when turning the key, the problem is often a bad starter motor or related wiring problem. This prevents the starter from activating to turn the engine over for starting.
What would make my Chevy car unexpectedly not start?
Sudden no-start issues can occur from disconnected battery cables, fuel pump or relay failure, broken timing belt, or an empty gas tank. These urgent issues can arise without warning and prevent your Chevy's engine from starting.
Why doesn't my Chevy car start but the battery is fine?
With a good battery, the problem may be a faulty alternator not charging the system, bad spark plugs providing no ignition, or a fuel flow problem preventing combustion. Your Chevy's engine needs air, fuel, compression and spark to run.
What are signs your Chevy starter is bad?
Signs of a bad starter include no noise upon turning the key, a single click but no turnover, unusual grinding sounds, and slow/labored cranking. These indicate starter failure and the need for replacement by a local mechanic.
Why won't my Chevy car start but battery and alternator are good?
If the battery and alternator check out, common causes are bad spark plugs, clogged fuel filter, blown fuse, immobilizer problem, and starter relay failure. Complete testing of all electrical and fuel systems are needed by a qualified local mechanic.