Do you have issues with the Nissan Titan manifold but don’t know why they happen? Nissan Titan cracked manifold symptoms include lower fuel efficiency, and burning smells from the engine. Also, some other symptoms are there that indicate a defective manifold.
Problems and warning signs of the Nissan Titan cracked manifold can occur frequently. Even some users don’t take them seriously and continue driving their vehicles. But it isn’t recommended, and it can be risky to ignore the symptoms and related issues.
Indeed, you must pay attention to the visible signs to diagnose the reasons for the issue. We’ll help you get all possible bad manifold symptoms with their reasons and potential solutions.
Nissan Titan Cracked Manifold Symptoms – Why It’s Vital To Know & Manage?
Like all other cars, the manifold of the Nissan Titan has been made with steel material, which is breakable. Your car’s exhaust manifold is vulnerable to cracking over time as you keep it driving. The issue becomes more frequent for critical weather conditions, like higher temperatures.
Identifying the reasons behind these cracks is tough, but you must be serious about locating them fix them. It’s because the manifold works to remove useless gases from the engine inside.
When the manifold becomes cracked, it can’t perform its duty correctly. As a result, the gases may enter the engine, which can be highly hazardous. Therefore, you must resolve the issue as soon as possible. Otherwise, it’ll lead to crucial engine problems in a short time.
Let’s look at the table below; it’ll give you a synopsis of Nissan Titan exhaust manifold problems with symptoms, reasons, and solutions:
| Symptoms | Reasons | Solutions |
| Slow Down the Engine Starting | Hot exhaust gases | Repair/replace the exhaust manifold |
| Odd Sounds | Leaked/cracked manifold | Repair/replace the exhaust manifold |
| Noticeable Cracks & Gaps | Hot exhaust gases | Repair/replace the exhaust manifold |
| Odorous Exhaust | Emission of CO gas | Weld/replace the exhaust manifold |
| Lower Engine Performance | Leaked manifold | Repair/replace the exhaust manifold |
| Decreased Fuel Economy | Less back pressure | Repair/replace the exhaust manifold |
Nissan Titan Cracked Manifold Symptoms In Detail With Reasons & Resolves
Slow Down the Engine Starting
A 2004 Nissan Titan exhaust manifold recall may be evident with a cracked and hard, slow, or stalling engine while starting. It typically happens for warm exhaust gases, which gradually make the manifold bad. A damaged or cracked manifold can't emit those gases outside, and they go through the engine inside.
When you drive your car without fixing this issue, it continuously transmits exhaust gases to the engine. Finally, it makes the engine entirely out of order.
How To Fix It
Before you step into replacement, Nissan Titan cracked exhaust manifold repair may solve the issue. So, bring your car to a mechanic shop to detect and repair the issue properly.
Odd Sounds
The odd sounds might come from the cracked manifold when driving the car without fixing the issue. It can create various noises, such as whistling, whooshing, and clicking. But if you get rattling noise, you must pay more profound attention as it’s a warning sign of other critical engine problems.
How To Fix It
Open your car’s hood and start the engine. Then, take note of the noises cautiously. If you find anything strange, try to control it. Otherwise, bring it to the mechanic for the best solution.
Noticeable Cracks & Gaps
As the issue is entitled to the cracked exhaust manifold, you must get this visible sign. You’ll find significant gaps that will help you ensure the problem easily. Sometimes, the cracks can be more minor and hard to see.
So, check the upper bolts at the beginning when you’ll start inspecting. A 2004 Nissan Titan exhaust manifold recall had happened for reporting several users. They got the problem without any noticeable signs.
How To Fix It
Check the exhaust manifold for possible visible cracks and gaps. Then, decide if they’re repairable or need replacement. You must have some practical knowledge to perform this checking and repairing task. Otherwise, it’s better to consult a mechanic to fix the issue.
Odorous Exhaust
The cracked exhaust manifold makes itself smell. It’s dangerous because it comes with carbon monoxide gas, which is most likely poisonous. An odorous exhaust is another symptom of a cracked manifold.
It warns you with the message ‘something is going wrong with the exhaust manifold,’ and Nissan Titan cracked exhaust manifold repair becomes a must.
How To Fix It
Welding Nissan Titan exhaust manifolds can be potential fixing if the issue is at the early stage. You must check it and decide the levels of severity. It may need a replacement, depending on the seriousness of the issue.
Lower Engine Performance
A 2007 Nissan Titan exhaust manifold can warn you about impacting engine performance. For example, you’re trying to accelerate the engine, but it loses power unexpectedly for a complex manifold. Leakage on the exhaust manifold may be the reason for less engine efficiency. Finally, it affects the overall performance.
How To Fix It
Check the exhaust manifold and identify the intensity of the problem. A 2004 Nissan Titan exhaust manifold replacement may require if the issue isn’t repairable.
Decreased Fuel Economy
Nissan Titan exhaust manifold leak or other issues occur for the damaged exhaust manifold. Usually, lower back pressure can cause this problem as vehicles depend on it—cracks on the manifold discharge this pressure differently.
How To Fix It
Identify the difficulty of the problem and try to repair it if possible. Otherwise, a 2007 Nissan Titan exhaust manifold replacement is the right solution.
Replacement/Repair Cost Of The Exhaust Manifold
On average, the Nissan Titan exhaust manifold replacement costs between $300 and $1000. But the price may rise to $3000 depending on labor, parts, and location. This replacement task should take 2 to 4 hours, costing between $250 and $400 for laborers.
Here is a table below that will give you a price comparison from various trustworthy parts suppliers:
| Supplier’s Name | Exhaust Manifold Cost | Labor Cost |
| Midas | $120 to $1330 | $180 to $380 |
| Pep Boys | $79.99 to $229.99 | $199 to $380 |
| YourMechanic | $146 to $1603 | $170 to $379 |
| Autozone | $58.99 to $3,297.99 | N/A |
| Amazon | $51.67 to $4,101 | N/A |
| Walmart | $66.81 to $1,004.70 | N/A |
Frequently Asked Questions – FAQs
What Are The Most Frequent Reasons For Cracked Exhaust Manifolds?
Extreme temperature is the leading cause of exhaust manifold cracks. Also, the issue may occur for extra load and intense use. Another rare yet possible reason is lower back pressure that makes the cracked manifold with decreased engine performance.
How Serious Is The Exhaust Manifold With Cracks?
An exhaust manifold with cracks is extremely serious. The issue can damage the engine if you drive the car with a cracked manifold. When a manifold gets cracks, it can pass exhaust gases into the engine, which is very harmful to it. It can melt the inner cables to make the engine non-responsive.
Do Manifold Cracks Damage The Engine?
Yeah, it’s possible to cause serious harm to the engine if you ignore the issue and continue driving. As the emissions from the engine make lots of poisonous gases, the manifold cracks let them enter the engine inside. In the early stage, it’ll stall the engine, and finally, the engine will be damaged.
How Long Does An Exhaust Manifold Last?
50,000 to 75,000 miles are the suggested lifespan of an exhaust manifold. But this life expectancy may lessen for heavy uses and unexpected wear and tear of the gasket.
Can I Drive My Car With A Cracked Manifold?
Driving a car with a cracked manifold isn’t impossible. However, you must avoid doing this as the cracks emit toxic gas that enters the engine. It’s a very harmful condition for the engine when you drive with manifold cracks. It’ll cause engine damage after a while.
What Does A Cracked Manifold Noise Like?
Ticking, clicking, tapping, whooping, and whistling are the possible sounds you can get from a damaged manifold. You should hear these noises right after starting the engine. They can subside after your car starts moving forward.
Can I Wend A Cracked Manifold?
Yes, you can weld the manifold cracks depending on their severity. If they’re repairable, you can weld them using the 72 rods, which is perfect for the various cracks.
The Bottom Line
The Nissan Titan cracked manifold symptoms come in understandable ways. In brief, slow-down engine starting, odd sounds, noticeable cracks & gaps, odorous exhaust, lower engine performance, and decreased fuel economy are the clear warning signs of manifold cracks.
Unlike the easily visible symptoms, fixing the issue isn’t so easy. If you’re not well-equipped and don’t have enough practical knowledge on fixing car issues, you should avoid doing it yourself, and diagnosing the severity of the issue is quite tricky for most users.
So, we recommend contacting an expert mechanic to fix the issue. Otherwise, driving your car with manifold cracks will lead the engine damage that will cost a few thousand bucks.