Porsche Won’t Start? Here’s Quick Solutions to the Most Common Causes

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Table of Contents

Introduction

Let's face it, we've all experienced it, you've got places to go, so you get in your Porsche, turn the key, and … drum roll please … nothing at all! Your Porsche won't start up! This an incredibly frustrating circumstance, however, don't stress, we've got you covered. There are lots and lots of explanations as to why your Porsche won't start, and in this guide, to spare you time we'll go over the most common factors along with give you practical solutions to get your car back on the road ASAP!

 

Understanding the Problem

Car Won't Start?

Before we get stuck into the causes and repair options it's important to initially comprehend the issue. When you realize to yourself “my Porsche won't start”, this could be due to an array of issues being wrong with your vehicle. Possibly the engine is not turning over at all, possibly it is cranking partially but then not starting, or possibly it's making a clicking sound when you attempt to start the engine, but in the end nothing happens. Each of these circumstances can indicate different issues with your car.

Common Reasons Why Your Porsche Won't Start

There are numerous reasons a Porsche won't start up. These concerns usually include a weak or dead vehicle battery, a bad alternator, starter motor problems, fuel system problems, as well as electrical or wiring complications. Each one of these problems can show up as a multitude of symptoms and require separate solutions to troubleshoot and repair, so we can get your car back on the road ASAP.

Symptoms of a Porsche That Won't Start

Having the ability to recognize and diagnose these signs, will assist you in finding the underlying cause of the issue. For instance, when you turn the key in the ignition, and you hear a clicking sound however your Porsche still won't start, it is often an indication that there is an issue with the fuel or ignition system of your car.

Analysis of The Reasons Why Your Porsche Won't Start

The first step to discovering a practical solution to the problem is figuring out the root cause of that problem, so let's dive into the most typical factors of why your Porsche fails to start.

Porsche Battery Issues

Auto mechanic replacing car battery In the majority of instances, the most common reason why your Porsche fails to start is, in many cases because of your car battery, it's either weak or dead, and you need to charge up the battery or change it. The vehicle's battery provides the electricity required to start the engine, and power all the electrical parts in your Porsche. Symptoms of a weak or dead battery problem in a Porsche, are things like the car being sluggish to crank the engine, weak or dim headlights, or a lit-up battery caution light on your car's dashboard.

Porsche Alternator Problems

is my alternator stopping my car from starting?

The alternator is for charging the battery from the engine while the car is running. A damaged alternator can easily stop your Porsche from starting as it won't be able to charge up the battery, from the engine, so it will be depleted all the way down till it's totally dead and you only realize it when you can't get your Porsche started. Signs that your Porsche's alternator is faulty can be a lit-up battery or alternator warning light on the dash, dim headlights when the engine is idling, and also a whining or grinding noise from the engine while it's running.

Porsche Starter Motor Failures

my car wont start is the starter motor?

When you start your Porsche, the starter motor handles turning the engine over (cranking it). If the starter motor is damaged in some manner then the engine will not crank, and your Porsche won't start. You can tell if your starter motor has an issue or not often by listening for a clicking noise when you turn the key in the ignition or a grinding noise during the start-up, or your car can start, but only intermittently then the starter motor may very well be the problem.

Porsche Fuel System Complications

my car wont start but clicks

Now we're not talking about when you merely run out of gas here, but your car’s fuel system itself having complications. Your Porsche uses a combustion engine, and therefore to start and run, it requires a combination of both fuel and air. If your Porsche problems are part of a faulty fuel system, this might be a clogged fuel filter or a damaged fuel pump relay, which could mean the engine might not be getting the fuel it needs to get the vehicle going.

Porsche Electrical System or Wiring Problems

can electrics be a reason a car wont start

Modern Porsches rely heavily on electronic components, which can mean there are lots of things that can potentially break and cause problems. Even in an older model, you can have fairly normal problems such as blown fuses, spark plug issues, a broken ignition switch, a damaged sensor, and more. These can be some of the various electrical reasons that your car won't crank. Signs of a wiring or electrical problem can differ vastly, however, can typically include the engine not cranking, or your Porsche can start but only intermittently, or various warning lights lit up on the dashboard. To properly identify and fix these kinds of problems, you will require the abilities of an experienced car mechanic in your area or online.

Solutions & Repair Tips

Once you have diagnosed the cause of your Porsche being unable to start is. The next logical step is of course to try and fix it. Here are some pointers for the typical issues we've covered up until this point.

How to Troubleshoot and Fix Battery Issues in a Porsche

my car wont start i think its the battery

If it’s a battery issue you suspect is the problem, then the first thing you should do is check around the battery and check the battery terminals. You want them to be clean, not corroded, and tightly connected. If you discover that the terminals are corroded you can try cleaning them with a mix of baking soda and water. You will need to replace the battery if it's weak or old, otherwise even if you charge it up enough to start the vehicle, it will likely die once again in the not-so-distant future. You can use a multimeter as a way to test the life of the battery to find out if it’s worth saving or if it needs replacing. You can ask a reliable car mechanic online or locally to best advise you on this.

How to Diagnose Alternator Problems in a Porsche

car wont start, jumped and started alternator

If the alternator is what you think is the perpetrator, you can test it to see for yourself. If you can get the vehicle to start up temporarily (you may need to jump-start the car for that), but once it’s going, let the vehicle run, and while it's running, disconnect the positive terminal of your car's battery. If you find your Porsche dies instantly, then it's likely due to an issue with the alternator. You should be aware however that this method can be risky, and might harm the delicate electronic elements in your Porsche, so it's best to consult with a professional car mechanic in your area or online, prior to ever trying this.

How to Identify Starter Motor Failures in a  Porsche

car wont start starter and battery good

You should listen for a clicking sound when you turn the ignition key if you think the starter motor is the root cause of your Porsche not starting. In this case, the solution is to have the starter motor changed for a new one by a professional mechanic.

How to Fix Fuel System Problems in a Porsche

clogged fuel filter car wont start

If you think the issue is because of a fuel system problem, listen for the fuel pump when you turn the key to the “on” position, before starting up the car. You should hear a humming noise for a few seconds. It may be there is an issue with the fuel pump if you are unable to hear this sound. If you observe your Porsche is hard to start, it stalls, or it has weak acceleration, it could possibly be because of a clogged fuel filter. Both of these will likely need a professional car mechanic in order to properly fix them.

How to Fix Electrical or Wiring Problems in a Porsche

fuses to check when car wont start

If you think it's an electrical wiring or electrical system problem, first check the fuses related to the ignition system, and change any that have actually blown. If your Porsche starts after this, then it was an effective, inexpensive, and simple repair! If the vehicle doesn't start, even intermittently, it could be cause for concern with the ignition switch itself. If various warning lights are noticeable on your dashboard, it could be a damaged sensor. These problems can be really intricate and a reliable car mechanic is most likely needed to diagnose and have it properly repaired.

Preventive Steps

As my dad always stated “Prevention is better than cure”, so here are the best ways to ensure you can avoid any Porsche starting problems ever again!

Routine Upkeep of Your Porsche:

Regular maintenance on car to prevent starting issues

Regular maintenance of your Porsche is crucial to avoid future troubles. This includes things like routine oil changes, checking your car battery, cleaning the terminals, changing the fuel filter as recommended/needed, and having your car examined by a professional car mechanic regularly. You can consult a mechanic locally or online if you find yourself uncertain or need further clarity about the routine maintenance jobs required for your particular car.

Drive Your Porsche Regularly:

drive regular to avoid car troubles

If you happen to leave your Porsche stagnant for long periods of time without driving it, the battery will drain as it's not being charged up by the engine being used. Try to drive your Porsche regularly to keep the battery full of juice. Take it for a fast spin to make sure there is still a charge in the battery if you remember you haven't driven your Porsche for a while. Worth noting: letting the battery totally drain, is also damaging for the longevity of the battery, try not to do this.

Take Notice Of Warning Signs:

Check Engine Control Light on a Vehicle Dashboard

If you notice anything strange like unusual noises, changes in driving and performance, or alert lights are now visible on the dash, do not ignore them and get on with your day. These can be early signs of an issue and are best being addressed ASAP before they end up being bigger problems down the line. Speak with a car mechanic in your area or online about these warning lights and get advice on if they need to be attended to.

When to Ask a Porsche Mechanic Online

If you're either limited on time, want a specialist Porsche mechanic on hand helping and advising you, or you've actually attempted to resolve it by yourself, however despite your best efforts your Porsche can't start, then talking with a Porsche mechanic online can be a fantastic option.

Benefits of Online Mechanic Solutions

Happy mechanic repairing car looking at camera

Online mechanic services, like ours in the bottom right of this page, provide several advantages. You can get expert Porsche mechanic suggestions 24×7 and without leaving your house, which is especially useful if your car will not start and is stuck in the driveway. It can also help you save money as online mechanic consultations are much less expensive than a physical visit to a local mechanic near you. Plus, you can get the answer rapidly, which is terrific if you're in a hurry, need a second opinion, or you just like having an expert Porsche mechanic on hand.

How Solutions Like MechanicAnswer.com Can Help You

Ask a mechanic online about my car not starting

MechanicAnswer.com connects you with certified expert mechanics who can provide instant assistance, guidance, and suggestions. You have the ability to describe the problems you are having with your car, ask a Porsche mechanic limitless questions, and even submit photos and videos so you are able to show the mechanic what you mean. You can speak with them through online chat or by call, whichever you choose. The Porsche mechanic will help you detect the issue, advise you on what are the best options for your individual circumstance and even assist you through basic maintenance and repairs step by step.

Conclusion

In a nutshell, when your Porsche won't start, it will likely be a complete downer and an enormous inconvenience. However, understanding what might be causing the issues, being able to troubleshoot them, and knowing what actions are needed in each case, and where to get help if required, will be a substantial help. Keep in mind that routine upkeep is key to avoiding all vehicle problems.

Even if this article was helpful, if you still have car troubles, you're always welcome to ask a mechanic online on our site.

Frequently Asked Questions (FAQs)

What should I do if my Porsche doesn’t start? 

First of all, do not panic. Try to identify any signs that could indicate an issue, such as unusual sounds, warning lights on the dash, or changes in performance. The cause of the issue is most likely one of the main causes talked about in this guide. If you can't find the problem yourself, you will require the aid of a Porsche mechanic in your area or online.

How to tell if my Porsche won't start because of the battery?

Indications of a battery issue in a Porsche include the engine being slow to crank, dim headlights, and lit battery warning lights on dash. You can also check the battery terminals to see if they are clean, not corroded, and firmly connected. If the battery is old or weak, it might be best to just replace it.

How can I prevent my Porsche not starting issues?

In order to ensure this inconvenience never takes place once again, regular maintenance is key. This includes things like oil changes, examining the battery and cleaning it's terminals, changing the fuel filter as recommended / required, and getting your Porsche checked by a mechanic regularly. It's also a fantastic idea to drive the vehicle regularly so the battery stays charged.

Can I ask a mechanic online if my Porsche wont start? 

Yes, you can. An online mechanic service like ours can offer immediate specialist Porsche mechanic help and guidance, without you having to leave your house. If your Porsche fails to start and is stuck in the driveway, this is particularly beneficial.

How can services like MechanicAnswer.com help if my Porsche won't start?

We link you with certified specialist Porsche mechanics who can supply advice on your particular circumstance. You can inform them about your vehicle issues, ask unlimited questions, and even submit images and videos so you can properly explain and show the issue. The mechanic will have the ability to help, troubleshoot, diagnose the problem, recommend the very best course of action, and guide you along the way.

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Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant and unlimited help and advice for 1 week, for just $5.
  2. Get in-person help from an Mobile Mechanic Near You. They will come to you and fix your vehicle at a time that suits you. Instant free quote online below.

Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant and unlimited help and advice for 1 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. Instant free quote online below.

Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant and unlimited help and advice for 1 week, for just $5.
  2. Get in-person help from a Mobile Mechanic Near You.  We recommend Fixter.  They will come to you and fix your vehicle at a time that suits you. Instant free quote online below.

Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant and unlimited help and advice for 1 week, for just $5.
  2. Get in-person help from a Mobile Mechanic Near You. We recommend YourMechanic. They will come to you and fix your vehicle at a time that suits you. Instant free quote online below.

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