2023 Tesla S Has Rough Idle

Troubleshooting Causes of Rough Idle in Your 2023 Tesla S and How to Resolve Them

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Reviewed by

Aisha

Written by RepairPal Car Genius

Updated January 14, 2025

21% chance it's the

Spark Plugs

15% chance it's the

Ignition Coil

64% chance it's

Something else

The most common reasons a 2023 Tesla S has rough idle are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil.

Spark Plugs: Worn or fouled spark plugs can lead to misfires, poor fuel economy, and difficulty starting the engine.
Ignition Coil: A faulty ignition coil can cause misfires, rough idling, and difficulty starting the engine due to inadequate spark delivery to the spark plugs.

Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

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RepairPal Certified shops can diagnose and repair your 2023 Tesla S engine and performance issues. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

What diagnostic steps should be taken to address the rough performance in a 2023 Tesla S?

When tackling rough performance issues in a 2023 Tesla Model S, it's essential to adopt a systematic diagnostic approach that prioritizes simpler solutions before delving into more complex assessments. Start by checking for any available software updates, as these can enhance vehicle performance and rectify existing problems. Next, inspect the battery health, since a compromised battery can significantly affect the car's overall performance. It's also crucial to review your charging habits; ensuring that the battery is charged correctly can prevent performance degradation. Tire pressure should not be overlooked, as maintaining it at recommended levels is vital for optimal handling and performance. Utilizing diagnostic tools to scan for error codes can provide valuable insights into any underlying issues. After these preliminary checks, conduct a test drive to observe the performance firsthand and identify specific conditions that may exacerbate the problem. If the rough performance persists despite these efforts, consulting a Tesla service center or a professional technician is advisable for a comprehensive diagnosis and resolution. By following this structured approach, you can effectively identify and address the performance issues in your Tesla Model S, ensuring a smoother and more enjoyable driving experience.

What are the common problems that could cause a rough idle in a 2023 Tesla S?

When dealing with a rough idle in a 2023 Tesla Model S, it's essential to understand the common problems that could be at play. One of the primary culprits is a dirty or clogged air filter, which can significantly restrict airflow to the engine, leading to performance issues. Additionally, faulty spark plugs may cause misfiring, contributing to an uneven idle. Another potential issue is vacuum leaks, which can disrupt the air-fuel mixture necessary for smooth engine operation. Fuel system problems, such as clogged fuel filters or injectors, can also hinder fuel delivery, resulting in a rough idle. Furthermore, a malfunctioning throttle body can interfere with the air intake process, exacerbating the issue. Lastly, don't overlook the engine control module (ECM); problems with this component, including sensor malfunctions or software glitches, can severely impact engine performance. By systematically checking these areas, you can effectively diagnose and address the rough idle in your Tesla Model S.

How urgent is it to address the rough idle in a 2023 Tesla S to prevent potential safety risks or significant damage?

Addressing a rough idle in your 2023 Tesla S is not just a matter of convenience; it is a critical safety concern that demands immediate attention. A rough idle can signal underlying engine problems or issues with other vital components, which, if ignored, may escalate into severe mechanical failures. This neglect can lead to decreased fuel efficiency and compromised vehicle performance, making your driving experience less reliable and potentially hazardous. Moreover, symptoms like rough idling may indicate serious issues such as engine misfires or malfunctioning sensors, which can jeopardize the safety of both the driver and passengers. Regular maintenance and prompt diagnosis of any irregularities are essential to avoid costly repairs and ensure the vehicle's longevity. Therefore, if you notice a rough idle, it is imperative to consult a qualified technician without delay to identify and rectify the root cause, safeguarding your vehicle's performance and your safety on the road.

Related 2023 Tesla S Problems

Read about related problems experienced by other Tesla S drivers like you.

Jaguar XKR rough idling issue with trouble codes indicating random multiple misfire in one bank

Some Jaguar XKR owners report experiencing rough idling issues accompanied by trouble codes indicating random multiple misfires, such as P0300, P0302, and P0304, which are linked to specific cylinders like cylinder 2 and cylinder 4. These owners often identify potential causes including vacuum leaks, spark plug problems, or ignition coil failures. Additionally, some report symptoms of fuel starvation, prompting checks of fuel pressures for accurate diagnosis. Issues with the supercharger bypass valve have also been noted as a contributing factor to rough idling. Furthermore, maintaining the correct air-to-fuel ratio is crucial, as any discrepancies can exacerbate misfires and idling issues. To resolve these problems, owners may need to reset fault codes, check fuel pressure, inspect the supercharger bypass valve, and ensure optimal air-to-fuel ratios.

1 model year affected

Avg Mileage: 199,940

2 others reported problem

1 comment

Mazda Navajo stalls and has a rough idle issue

Some Mazda Navajo owners report experiencing stalling and rough idle issues, particularly when coming to a stop. Common problems include fuel system malfunctions, such as clogged fuel filters, dirty fuel injectors, or malfunctioning fuel pumps, which can restrict fuel flow to the engine. Additionally, owners have noted that cracks or holes in the air duct can allow unmetered air to enter the engine, disrupting the air/fuel mixture and leading to rough idle and hesitation. Vacuum leaks have also been reported to cause difficulties in maintaining idle, contributing to stalling and rough running. Moreover, some owners experience issues with the idle air bypass valve, which can lead to difficulty starting the engine when cold and stalling at idle. Faulty O2 sensors have been cited as another factor, with symptoms including rough idling, poor fuel economy, and a check engine light. Addressing these issues through proper maintenance and timely repairs is crucial for improving the performance of the Mazda Navajo and resolving these concerns.

4 model years affected

4 others reported problem

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