2020 Lincoln Navigator Engine Makes A Ticking Noise

Common Causes of Ticking Noises in Your 2020 Lincoln Navigator Engine and How to Address Them

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
12% chance it's the
Exhaust Leak
0%
88% chance it's
Something else
The most common reasons a 2020 Lincoln Navigator engine makes a ticking noise are low oil level or pressure, an issue with the ignition system, or an exhaust leak.
  • Exhaust Leak: A damaged exhaust manifold or a loose connection in the exhaust system can cause an exhaust leak, resulting in increased noise and potential loss of engine power.
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.

How much does it cost to fix a 2020 Lincoln Navigator engine makes a ticking noise?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

If the drive belt idler pulley fails, there will be a very audible chirping noise from the front of the engine. This is because the idler pulley bearing is no longer smooth, and rotating causes metal to grind at high speeds. If it is not changed immediately, there is a chance it will become dislodged, or allow the drive belt to slip off. If the belt falls off, the accessory that it drives will no longer function. For instance, if the alternator belt idler pulley fails, the alternator may stop functioning. Also if the pulley begins to wobble, allowing slack in the belt, it will make an extremely loud squeaking or screeching noise, especially on cold starts. This is the belt slipping on the crankshaft pulley, and will require belt replacement once the idler pulley is replaced.

If the drive belt tensioner fails, there will be a very audible chirping, grinding, or rattling noise from the front of the engine. This is because the tensioner pulley bearing is no longer smooth, and rotating causes metal to grind at high speeds. If it is not changed immediately, there is a chance it will become dislodged, or allow the drive belt to lose tension, or break. If the belt falls off, the accessory that it drives will no longer function. Also, if the tensioner spring fails, allowing slack in the belt, it may make an extremely loud squeaking or screeching noise combined with a rattle as the tensioner bounces back and forth under load. The squealing noise is the belt slipping on the crankshaft pulley, and will require belt replacement once the belt tensioner is replaced.

An engine leaking oil does not always make a puddle on the ground. A burning smell may be noticed from the front of the vehicle after driving. This is because engine oil leaks may fall onto hot engine components, especially the exhaust manifold, and burn off before making it to the ground. This poses a risk to the engine because the leak going unnoticed may deplete the engine oil reserve, and lead to an oil starvation issue. Some engine oil leaks only occur while the engine is running, so the leak may be larger than the small spot on the ground makes it seem.

Noises can be accompanied by many annoying or worrisome sensations. Consider the noise of grinding brakes, the noise sounds much like the brake pedal and steering wheel feel. This is important, as random noises can be difficult to replicate without knowing when the sound occurs, what must be done to make the sound, and what sound it is. Any professional technician can replicate and diagnose most noises, but to ensure the vehicle is more quickly diagnosed, make sure you tell your technician these three pieces of information.

The engine oil pressure warning light will come on if the engine oil pressure is low, or if the oil pressure sensor is faulty. In either case, engine power may be reduced significantly. The check engine light may also illuminate, and an on-board diagnostic (OBD) trouble code will be stored in the vehicle's computer.

What could be causing the ticking noise in the engine of a 2020 Lincoln Navigator, and how should I diagnose it?

When faced with a ticking noise in the engine of your 2020 Lincoln Navigator, it's essential to adopt a systematic diagnostic approach. Start by checking the engine oil level, as low oil can lead to inadequate lubrication of engine components, resulting in ticking sounds. If the oil level is fine, inspect the valve lifters for wear, as these can also contribute to the noise if they are not functioning correctly. Next, examine the exhaust system for any leaks, as an exhaust leak can produce a similar ticking sound. If these initial checks do not resolve the issue, consider the timing chain, which may require inspection for wear or damage. Additionally, be aware of spark knock, which can occur due to improper ignition timing or fuel mixture, leading to ticking noises. If you are unable to identify the source of the noise after these assessments, it may be prudent to consult a qualified mechanic who can provide a thorough diagnosis using specialized tools. By following this structured approach, you can effectively narrow down the potential causes of the ticking noise and take appropriate action to resolve the issue.

What are the common causes of a ticking noise in the engine of a 2020 Lincoln Navigator?

When you hear a ticking noise coming from the engine of your 2020 Lincoln Navigator, it’s crucial to identify the source to prevent further damage. One common culprit is low engine oil, which can lead to increased friction among engine components, resulting in a ticking sound. Regularly checking and maintaining the proper oil level can help mitigate this issue. Another potential cause is worn valve lifters; as these components degrade over time, they may not function smoothly, leading to noticeable ticking. Additionally, an exhaust leak can create a ticking noise, particularly when the engine is running, so inspecting the exhaust system for any signs of damage is advisable. Timing chain issues, such as looseness or wear, can also produce similar sounds, indicating that it may need adjustment or replacement. Lastly, spark knock, which occurs when the air-fuel mixture ignites prematurely, can manifest as a ticking or pinging noise. By understanding these common problems, you can take the necessary steps to diagnose and address the ticking noise in your Navigator, ensuring its longevity and performance.

How urgent is it to address the ticking noise in the engine of a 2020 Lincoln Navigator?

Addressing a ticking noise in the engine of a 2020 Lincoln Navigator is a matter of urgency that should not be overlooked. Early detection is crucial, as it can prevent minor issues from escalating into major problems that could compromise the vehicle's performance and safety. The ticking sound may stem from various causes, including low oil levels, worn-out components, or valve train issues, all of which require immediate attention. Ignoring this noise can lead to severe consequences, such as engine failure or costly repairs, which can significantly impact your budget and vehicle reliability. For DIY enthusiasts, while it may be tempting to troubleshoot the issue independently, it is wise to consult a qualified mechanic for a thorough inspection to accurately diagnose the problem. This proactive approach not only ensures the safety of the vehicle but also helps maintain its longevity and performance. Therefore, if you notice a ticking noise, prioritize addressing it promptly to safeguard your investment and ensure a smooth driving experience.

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