Error code 171 in your Volvo S70 usually signifies a fuel delivery issue, often caused by a faulty fuel pump or clogged fuel filter. To troubleshoot, check the fuel pump operation and inspect the fuel filter for blockages. If these components are functioning properly, further diagnostics may be necessary, potentially requiring professional intervention.
A common scenario for Volvo S70 owners is encountering error code 171, which prevents the vehicle from starting. This issue typically occurs due to problems with the fuel delivery system. A faulty fuel pump or a clogged fuel filter are the primary culprits behind this error code. By identifying the specific cause, owners can take appropriate action to address the issue and get back on the road. For related context, you may also want to read dstc Volvo car won t start.
- Main point: Error code 171 indicates a fuel delivery issue.
- Best first step: Check the fuel pump and filter for faults.
- Cost or value: Diagnostics can range from $120 to $300.
- Who it suits: This guide is for S70 owners experiencing starting issues.
- When to get help: Consult a mechanic if basic checks don’t resolve the issue.
This guide helps you troubleshoot and fix starting issues quickly.
Gain insights on checking fuel delivery components yourself.
Understand how to address common starting problems effectively.
What Error Code 171 Means for Your Volvo S70
Error code 171 in the Volvo S70 indicates a fault in the fuel delivery system, often preventing the engine from starting. This code usually points to issues such as a malfunctioning fuel pump or a clogged fuel filter. Such failures disrupt the flow of fuel necessary for ignition, making it crucial to diagnose and resolve the issue quickly to avoid further complications. You can also use jump start a car with a Volvo step by step guides free as a helpful next guide on the same ownership topic.
Symptoms of Error Code 171 in Your Volvo S70
When your Volvo S70 displays error code 171, you may notice specific symptoms that can help pinpoint the problem. Common indicators include: For another practical angle, see how to use Volvo app to start car.
- No start: The engine fails to crank or start altogether.
- Engine sputtering: The engine may start but runs poorly or sputters during acceleration.
- Fuel odor: A noticeable smell of fuel around the vehicle may indicate a leak.
- Check engine light: The dashboard warning light remains illuminated.
Error codes can often be read using an OBD-II scanner, allowing for quick diagnostics. If you are comparing similar topics, how to use a Volvo to jump start another car safely is also worth checking.
Most Likely Causes of Error Code 171 in the Volvo S70
Understanding the causes of error code 171 can help you efficiently address the problem. Here are the most likely culprits: For related context, you may also want to read what causes a Volvo not to start.
- Faulty fuel pump: A malfunctioning fuel pump may fail to deliver the necessary fuel pressure.
- Clogged fuel filter: A blocked filter can restrict fuel flow, causing performance issues.
- Fuel line leaks: Leaks can lead to inadequate fuel pressure and engine performance problems.
- Faulty fuel injectors: If injectors are malfunctioning, they may not deliver fuel correctly to the engine.
Here is a summary of the key points covered above regarding the causes of error code 171: This connects closely with Volvo key fob dead car won t start if you want to compare the topic in more detail.
| Cause | Detail | Fix | Cost |
|---|---|---|---|
| Faulty fuel pump | May not deliver fuel pressure | Replace the fuel pump | $200-$300 |
| Clogged fuel filter | Restricts fuel flow | Replace the fuel filter | $50-$120 |
| Fuel line leaks | Inadequate fuel pressure | Repair or replace lines | $100-$250 |
| Faulty fuel injectors | Incorrect fuel delivery | Replace or clean injectors | $150-$400 |
Reviewing these common causes can assist you in effectively diagnosing the issue with your Volvo S70. This connects closely with how to remote start Volvo XC60 with key if you want to compare the topic in more detail.
How to Diagnose Error Code 171 in Your Volvo S70
Diagnosing error code 171 can often be done at home without the need for specialized tools. Follow these steps to identify the issue: You can also use Volvo XC60 wont start as a helpful next guide on the same ownership topic.
- Check fuel pump operation: Turn the ignition to the “On” position without starting the engine. You should hear the fuel pump prime.
- Inspect the fuel filter: Look for signs of clogging or damage; if it’s dirty, it likely needs replacement.
- Look for fuel leaks: Inspect fuel lines and connections for any visible signs of fuel leakage.
- Test fuel pressure: If you have a fuel pressure gauge, connect it to the fuel rail. The pressure should typically be between 30-50 PSI.
- Check OBD-II scanner: Use a scanner to confirm the presence of error code 171 and check for any additional codes.
How to Fix Error Code 171 in Your Volvo S70
Fixing error code 171 can involve both DIY solutions and professional assistance. Here’s how to approach the repairs:
What You Can Do Now
- Replace the fuel filter: If clogged, this is an inexpensive fix that can restore fuel flow.
- Inspect and tighten fuel lines: For any leaks, ensure connections are tight and secure.
- Test the fuel pump: If it’s not functioning properly, consider replacing it.
What Needs a Mechanic
- Fuel pump replacement: If the pump is faulty, this may require professional installation.
- Fuel injector servicing: A mechanic can clean or replace injectors if they are malfunctioning.
- Advanced diagnostics: If the issue persists, further diagnostics may be required.
Repair Cost for Error Code 171 in Your Volvo S70
The cost to repair issues linked to error code 171 can vary based on the specific cause:
How to Prevent Error Code 171 in Your Volvo S70
Preventing error code 171 from occurring again involves regular maintenance and monitoring of the fuel system. Here are some preventive measures:
- Regular fuel filter changes: Replace the fuel filter every 30,000 miles or according to manufacturer recommendations.
- Keep fuel lines clean: Regularly inspect for leaks and blockages.
- Use high-quality fuel: Consistently using quality gasoline can reduce deposits in the fuel system.
- Monitor fuel pressure: Regular checks can help identify problems before they escalate.
- Check your fuel pressure regularly to catch issues early.
- Keep an eye on your dashboard for warning lights.
- Replace the fuel filter as part of your regular maintenance.
- Consider using fuel system cleaners periodically.
By following these tips, you can help ensure that your Volvo S70 remains in optimal running condition and avoid facing error code 171 in the future.
Maintaining your vehicle’s fuel system requires vigilance and regular checks. Simple tasks like changing the fuel filter and inspecting fuel lines can go a long way in preventing issues related to error code 171.
💡 Evans Torres Tip: When diagnosing my S70, I found that a simple fuel filter replacement resolved the error code 171. I recommend checking your fuel pressure before replacing the fuel pump, as it can save you both time and money. Always ensure your fuel lines are tight to prevent leaks!
Frequently Asked Questions
This FAQ section addresses common queries related to error code 171 in the Volvo S70, focusing on troubleshooting, repairs, and preventative measures.
What is error code 171 in a Volvo S70?
Error code 171 indicates a fuel delivery issue, often related to the fuel pump or fuel filter malfunctioning.
How can I diagnose error code 171 myself?
Check fuel pump operation, inspect the fuel filter, look for leaks, and test fuel pressure to diagnose the issue.
What are the common symptoms of error code 171?
Symptoms include a no-start condition, engine sputtering, fuel odor, and the check engine light being on.
How much does it cost to fix error code 171?
Repair costs can range from $50 for a fuel filter replacement to $300 for a fuel pump replacement.
Can I drive my Volvo S70 with error code 171?
Driving with this error code is not recommended, as it indicates a fuel delivery issue that can lead to engine damage.
How can I prevent error code 171 from recurring?
Regular maintenance such as changing the fuel filter and monitoring fuel lines can help prevent this error from reappearing.
Final Verdict
Encountering error code 171 in your Volvo S70 can be concerning, but understanding its meaning and potential solutions can ease the process. Start by checking the fuel pump and filter, as these are often the root causes. If basic diagnostics don’t resolve the issue, seeking professional help may be necessary. Regular maintenance can also help prevent this problem from recurring in the future.
Author
Author
Evans Torres
I’m Evans Torres, an automotive engineer who loves Volvo cars. I graduated in Automotive Engineering from USC. I have worked in the car industry for years and now share my knowledge on The Volvo Life. I started this blog to connect with other Volvo fans. I offer tips, news, and advice to help you care for your car. My goal is to help you keep your Volvo in great shape and find all the best things about it. Join me as we discover everything Volvo has to offer!