Mazda Navajo Engine Makes A Ticking Noise

Common Causes of Ticking Noises in Your Mazda Navajo Engine and How to Address Them

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Reviewed by
Andrew Hajjar
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 Mazda Navajo 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 Mazda Navajo 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 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.

Troubleshooting Ticking Noise in a Mazda Navajo

When troubleshooting a ticking noise in your Mazda Navajo, it's essential to adopt a systematic diagnostic approach. Start by checking the oil level and pressure, as low oil can lead to significant engine noise. If the oil is at an appropriate level, inspect the ignition system for any faults that could contribute to the ticking sound. Next, examine the exhaust system for leaks, as these can also produce similar noises. Don’t forget to look inside the vehicle for any loose items that might be causing interior noises. Moving under the car, check for any foreign objects stuck in the tires or issues with the exhaust system that could be generating sounds. Under the hood, listen for failing lifters or damaged pistons, which are common culprits of ticking noises. Additionally, be aware that some ticking sounds may be normal, such as those from fuel injectors or other engine components. By methodically assessing each potential source, you can effectively narrow down the cause of the ticking noise and determine whether it requires a simple fix or professional intervention.

Diagnosing Engine Ticking Noise in a Mazda Navajo

When diagnosing engine ticking noise in a Mazda Navajo, it's essential to recognize the various common problems that could be at play. One of the primary culprits is low oil level or pressure, which can lead to insufficient lubrication of engine components, resulting in a ticking sound. Additionally, issues within the ignition system, such as faulty spark plugs or ignition coils, can also manifest as ticking noises. Another frequent cause is an exhaust leak, which can create a distinct ticking sound as exhaust gases escape from the system. Furthermore, faulty hydraulic lash adjusters may contribute to this noise, as they are responsible for maintaining proper valve clearance. To effectively address these issues, it's crucial to conduct regular maintenance, including oil changes and inspections, to catch potential problems early. If the ticking persists, seeking professional diagnosis is advisable, especially for complex issues that may require specialized tools or expertise. Understanding these common problems will empower DIY enthusiasts to troubleshoot effectively and maintain their Mazda Navajo in optimal condition.

Why is the Ticking Noise in a Mazda Navajo Engine Urgent to Address?

Addressing the ticking noise in a Mazda Navajo engine is not just a matter of convenience; it is a critical safety concern that demands immediate attention. Ignoring this symptom can lead to severe consequences, including engine component wear and potential catastrophic failures. Low oil levels, for instance, can result in inadequate lubrication, causing vital engine parts like valves and lifters to produce alarming ticking sounds. If left unchecked, this can escalate into more serious problems such as rod knock or poor lubrication of rod bearings, particularly in turbo models. Moreover, the ticking noise may indicate worn-out spark plugs or exhaust leaks, which can further compromise engine performance and longevity. By promptly diagnosing and addressing the source of the ticking, you not only prevent further damage but also ensure the safe and efficient operation of your vehicle. Regular maintenance, including adhering to the manufacturer's recommended schedule for oil changes and engine checks, is essential in mitigating these risks and maintaining the health of your Mazda Navajo.

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Mazda Navajo Engine Ticking Noise: Causes & Repairs