Chevrolet D20 Won’t Start: Top 14 Causes & Solutions

As a certified auto mechanic with more than 20 years of experience, I’ve seen a good share of Chevys that fail to start. Hi, I’m Robby and I understand how annoying this can be for people, especially when you have things to do and places to be. But don’t panic! In this article, I’ll share my inner knowledge on the top reasons your Chevy D20 won’t start, along with helpful tips to get you back on the road fast.

With advanced certifications in electrical systems and engine performance, I’ve diagnosed and fixed just about every “no start” issue out there. I’ll walk you through how to analyze your D20’s symptoms, zero in on the root cause, and determine if it’s a home remedy or best left to a professional mechanic. I’ll also give recommendations for products that can help you solve your issue, as well as make sure it doesn’t happen again in the future.

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Quick Solution Alert! 🚗💡

To save you time, this might be the quick solution you need.

An online mechanic can help you solve the issue much faster, and save money doing it.

They help 1000s of people every day in your position, save a lot of time, money and risk getting their vehicle repaired. Having a friendly expert mechanic guiding and advising you every step of the way, is the best thing you can do. You will have your issue fixed faster, and likely cost much less.

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You can read on, or get instant help with your issue. We have the best online mechanics, but before asking them, we recommend asking our AI mechanic first as it’s 100% FREE.

9 out of ten times the AI mechanic is able to help you solve the problem for free, and if it’s not, you can chat with a human mechanic on the next page anyway.  Try it for free below. 

Drained or Dead Battery in a Chevrolet D20 

car wont start but battery is good
Image Credit: MechanicAnswer.com

The most common reason a Chevy doesn’t crank is a dead or weak battery. Your battery provides the initial jolt of electricity to turn over the engine and get it running.

Signs of a dead battery:

  • Silence upon turning the key – no engine cranking
  • Electronics not powering on
  • Hard time starting in cold weather

The Fix: Keep jumper cables on hand for a dead battery emergency. Jump starting your Chevy D20 using a good battery or portable charger can deliver 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.

Robby Recommends:

Portable Car Battery Jump Starter Charger - NOCO Boost Plus GB40

At Home Battery Charger - YONHAN - Fully Automatic

Jumper Cables by Energizer for Car Battery - Heavy Duty

NOCO Boost Plus GB40 1000A UltraSafe Car Battery Jump Starter

YONHAN Battery Charger Fully-Automatic

Energizer Jumper Cables for Car Battery, Heavy Duty

Faulty Alternator in a Chevrolet D20 

is my alternator stopping my car from starting? If your battery tests fine but your Chevrolet D20 still won’t turn over, the culprit may be a faulty alternator. This vital part charges your battery while driving and energizes the electrical system.

Clues of a bad alternator:

  • Battery warning indicator illuminating
  • Lights dimming
  • Hard time starting, particularly following short trips

The Fix: Get your alternator inspected immediately by a mechanic. A bad alternator can quickly drain your battery. This will need to be replaced by an experienced mechanic.

Faulty Spark Plugs in a Chevrolet D20 

Auto mechanic and spark plug Spark plugs fire the air/fuel ratio in the cylinders to power your car. When they are fouled or worn out, your D20 may not start due to no spark.

Signs of bad spark plugs:

  • Poor fuel economy
  • Rough idle
  • Engine misfiring

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 in a Chevrolet D20

My car wont start, is it a faulty ignition switch? Problems with parts like the switch, lock cylinder, fob, or wiring can prevent your Chevy from cranking.

Symptoms 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.

Starter Failure in a Chevrolet D20

Starter motor problems in car The starter motor engages when you turn the key to crank the engine. If it’s damaged, your Chevy D20 may not crank.

Symptoms of a bad starter:

  • No noise upon turning key
  • Clicking but no cranking
  • Unusual grinding or whining

The Fix: Have your starter inspected and repaired if faulty. This requires the help of a professional mechanic to diagnose and repair.

Not in Park or Neutral in a Chevrolet D20

transmission not in park so car won't start If your gearbox isn’t in Park or Neutral, your Chevrolet’s safety features will prevent it from starting.

The Fix: Shift into Park/Neutral and try again. 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 in a Chevrolet D20

my car wont start but clicks, could it be the fuel filter? A blocked fuel filter can constrain fuel delivery to the engine, preventing your Chevrolet D20 from turning over.

Signs of a clogged filter:

  • Difficulty starting
  • Engine sputtering
  • Decreased fuel economy

The Fix: Replace the filter when due or if suspected clogged. Use quality gas and replace 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.

Bad or Failing Fuel Pump in a Chevrolet D20

faulty fuel pump The fuel pump delivers 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 pump noise upon turning key
  • Hard time starting
  • Stalling after starting

The Fix: Have your pump tested. If faulty, a mechanic near you will need to replace it.

Compression Issues in a Chevrolet D20

auto mechanic doing a tune up Proper compression is required to combust the air/fuel mixture. Low compression from damage can lead to a no start.

Symptoms of compression issues:

  • Hard time 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 in a Chevrolet D20

broken timing belt car The timing belt synchronizes the camshaft and crankshaft. If it breaks, the valves and pistons won’t be timed properly and your Chevrolet D20 won’t start.

Signs of a bad timing belt:

  • No start
  • Unusual clicking sound

The Fix: Have your belt inspected and fixed right away if broken. This requires a local professional mechanic to replace the timing belt of your Chevy D20.

Loose or Detached Battery Cable in a Chevrolet D20

122654fa c6ae 4f2a 98d9 84b95ea016ca A loose battery cable can block electricity current in your Chevrolet. This common problem can prevent starting.

Symptoms of a bad cable:

  • Corroded terminals
  • Power loss from moving cables
  • Frayed wiring

The Fix: Clean 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.

Bad Relays in a Chevrolet D20

faulty relay switch preventing car from starting Relays control power to components like the starter, fuel pump, and computer. Failure can prevent your Chevy D20 from starting or running right.

Diagnosing 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

car wont start because of no fuel Running your tank completely empty 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.

Flooded Engine

Overfill fuel causing car to not start 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

Ask the mechanic With so many potential issues for a no start issue, it can be tough to identify the exact problem yourself. In some cases, seeking assistance from an experienced mechanic can save you time 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

Local Garage mechanics 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 Chevrolet Mechanic Near You

mobile mechanic to get my car starting again Having a qualified mobile mechanic come to your Chevrolet D20 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.

3. Chat with a Chevy Mechanic Online

when to ask a mechanic This is a wonderful option for most DIYers or car enthusiasts. It’s many times  an easy mend you can do yourself, like switching out or charging the battery. In these cases, if you are aware of what to do in a stepwise fashion, you can do it yourself, you are not required to pay a mechanic on-site. Alright, it’s your fortunate day, an online mechanic can offer all the assistance, guidance, and advice you require, right away by online chat. You can then execute the easy repair on your own.

The best online mechanic we suggest is JustAnswer, and through our link, you can get a free trial of their assistance for just $5, inquire unlimited questions for a week, get the help you require, and you are not obligated to continue the service after that. We love JustAnswer for this purpose, professional auto mechanic help for just $5 is an unmatchable price.

The licensed mechanics at JustAnswer’s Ask a Mechanic service are ready 24/7 to provide online analysis and recommendations. The advantages of asking a mechanic online include:

  • Convenience: Get help from your house without having to schedule an appointment or wait at a shop.
  • Fast replies; Mechanics reply in minutes with likely issues and solutions based on your description.
  • Cost savings: Pay per question rather than full diagnostic fees – great for basic troubleshooting.
  • Documentation: All conversations are saved in writing, providing helpful reference.
  • Expert knowledge; Seasoned licensed mechanics have the knowledge to address Chevy D20|Chevrolet D20 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 D20 or your Chevrolet Deluxe 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 “Chevrolet wont start after getting gas“, consider our ask a Chrevrolet mechanic online free service.  In just minutes, you can get expert Chevrolet knowledge to help get your beloved D20 going again.

FAQs (Frequently Asked Questions) When a Chevrolet D20 Won’t Start

Chevrolet D20 won’t start but lights come on?

If your Chevrolet D20s lights illuminate but it still won’t start, the issue may not be related to the battery. More than likely there is a problem with the engine starter. Check to see if you hear any clicking sounds when attempting to crank the key. If so, the starter motor is attempting to activate but failing. Have a mechanic inspect the starter motor – it may need to be fixed or swapped out.

Chevrolet D20 won’t start but has power?

When your Chevrolet D20 has power (lights, radio etc work) but does not start up, there may be a fuel delivery problem. Issues like a faulty fuel pump relay could prevent fuel getting to the engine. Without enough fuel, combustion can’t happen and the engine won’t start. Listen near the back seat when cranking the key – you should hear the fuel pump prime for a few seconds. If not, have a mechanic check the fuel system.

Chevrolet D20 won’t start but battery is fine?

If your Chevrolet D20’s battery tests fine and is fully charged, but the car still refuses to start, the underlying cause is likely electrical. Possible issues include a bad ignition switch, broken sensor, or wiring problems. As electrical issues can be tricky, diagnosis by a professional mechanic is best. They can accurately identify the specific electrical fault and have it repaired.

Chevrolet D20 won’t start just clicking?

When you turn the key and there’s only a clicking noise but the engine fails to turn over, the most common cause is a faulty starter motor. The click comes from the starter solenoid attempting to activate the starter motor, but the motor itself fails to spin up the engine. As the starter motor needs mechanical repair or replacing, consult with a reliable mechanic to get your Chevrolet D20 running again.

Why is my Chevrolet D20 car not starting but I have power?

If your Chevrolet D20 doesn’t crank but the lights and electronics power on, the most likely causes are issues with the starter motor, ignition switch, or neutral safety switch. Defective ignition components prevent the engine from turning over even when battery power is present.

Why does my Chevrolet D20 have power but won’t turn over?

When your Chevrolet D20 has power to the lights and accessories but doesn’t start when trying to start, the problem is often a bad starter system or related wiring issue. This prevents the starter from activating to turn the engine over for starting.

What would make my Chevrolet D20 car unexpectedly not start?

Unexpected no-start issues can happen from disconnected battery cables, fuel pump or relay failure, broken timing belt, or an empty gas tank. These critical problems can arise without warning and prevent your Chevrolet D20s engine from starting.

Why doesn’t my Chevrolet D20 car start but the battery is fine?

With a good battery, the culprit may be a faulty alternator not charging the system, bad spark plugs providing no ignition, or a fuel flow issue preventing combustion. Your Chevy’s engine needs air, fuel, compression and spark to run.

What are symptoms your Chevrolet D20 starter is bad?

Signs of a bad starter include no noise upon turning the key, a single click but no turnover, unusual grinding noises, and slow/labored cranking. These indicate starter failure and the need for replacement by a local mechanic.

Why doesn’t my Chevrolet D20 start but battery and alternator are good?

If the battery and alternator check out, common culprits 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.

Interesting Facts About the Chevrolet D20

Did you know that the Chevrolet D20 was actually originally designed as a military vehicle? That’s right, this rugged and reliable truck was initially built for military use, which explains its tough and durable design. Another interesting fact is that the D20 was one of the first pickup trucks to feature a diesel engine, making it a trailblazer in the world of diesel-powered vehicles. And get this – the D20 was so popular in Brazil that it was produced there for over 20 years! It’s no wonder that this truck has such a loyal following. So if you’re feeling stumped about how to get your D20 started, just remember all the cool history and innovation behind this iconic vehicle.

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Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant, unlimited help and advice for 1 full week, for just £5.
  2. Get help from a Mobile Mechanic. We  recommend Fixter. They will come to you and fix your vehicle at a time that suits you. Instant free quote online below. We recommend the online mechanic first, as it’s cheaper for you, and you may not need an in-person mechanic.

Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant, unlimited help and advice for 1 full week, for just $5.
  2. Get in-person help from a Mobile Mechanic. We recommend YourMechanic. They will come to you and fix your vehicle at a time that suits you. Instant free quote online below. We recommend the online mechanic first, as it’s cheaper, and you may not need an in-person mechanic.

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Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant, unlimited help and advice for 1 full week, for just $5.
  2. Get in-person help from a Mobile Mechanic Near You. They will come to you and fix your vehicle at a time that suits you. If there are none near you, you will be redirected to the online mechanic.

Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant, unlimited help and advice for 1 full week, for just £5.
  2. Get help from a Mobile Mechanic. We  recommend Fixter. They will come to you and fix your vehicle at a time that suits you. Instant free quote online below. We recommend the online mechanic first, as it’s cheaper for you, and you may not need an in-person mechanic.

Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant, unlimited help and advice for 1 full week, for just $5.
  2. Get in-person help from a Mobile Mechanic. We recommend YourMechanic. They will come to you and fix your vehicle at a time that suits you. Instant free quote online below. We recommend the online mechanic first, as it’s cheaper, and you may not need an in-person mechanic.

Where Can I Find My VIN?

Your vehicle’s unique Vehicle Identification Number (VIN) can be found on the title document, the vehicle registration, and the insurance policy. It is a series letters and numbers like this as example: WAUGC0896JA235262. The VIN can also be located on the following locations on the vehicle itself:

how to find VIN on vehicle