A Guide to the Engine Valve Cover Gasket Set for the 2001-2011 Mazda Tribute
Stop that burning oil smell and keep your Tribute's engine clean by fixing a common oil leak.
- A burning oil smell is the most common sign of a failed valve cover gasket.
- For the 3.0L V6, the rear gasket replacement is difficult and requires removing the intake manifold.
- A leaking V6 rear gasket can destroy the starter motor below it, so it's critical to fix the leak.
- Always choose a complete kit with gaskets, spark plug tube seals, and grommets.
Why Valve Cover Gaskets Fail on the Mazda Tribute
The valve cover gaskets on the 2001-2011 Mazda Tribute live in a harsh environment. Constant exposure to high engine heat and oil causes the rubber to become hard, brittle, and shrink over time. This is a common issue on both the 4-cylinder and V6 engines, often appearing after 80,000 miles. Once the gasket can no longer create a tight seal, oil begins to seep out, leading to noticeable problems.
Is This a DIY Job? 4-Cylinder vs. V6 Engines
Replacing the valve cover gasket on a Mazda Tribute varies greatly by engine type. The Tribute was sold with a 4-cylinder (I4) engine and a 3.0L V6 engine, which it shares with the Ford Escape.
- 4-Cylinder (2.0L, 2.3L, 2.5L): This is a straightforward job for a DIYer with basic tools. The valve cover is easy to access on top of the engine.
- 3.0L V6: This job is much more difficult. The front valve cover is accessible, but the rear cover (near the firewall) is located underneath the upper intake manifold. To replace the rear gasket, the entire intake manifold must be removed, which adds significant time and complexity. This is best left to an experienced DIYer or a professional mechanic.
Known Issue for 3.0L V6 Owners
A leaking rear valve cover gasket on the V6 engine will drip oil directly onto the starter motor located below it. This oil saturation will cause the starter to fail prematurely. If you are replacing a failed starter on a V6, it is critical to inspect and replace the valve cover gaskets at the same time to prevent the new starter from failing as well.
Choosing the Right Aftermarket Gasket Set
You don't need to buy an expensive OEM gasket from the dealer. Several reputable aftermarket brands offer high-quality sets that meet or exceed OEM standards. When shopping, look for a complete kit that includes the valve cover gasket(s), spark plug tube seals, and bolt grommets.
- Premium Brands (Fel-Pro, Beck Arnley, Victor Reinz): These brands are well-regarded by mechanics for their quality and fit. Fel-Pro is often a go-to choice and is known for sometimes improving on the original factory design. Beck Arnley is known for often repackaging the original OEM part.
- Standard Brands (Apex): These brands offer a more budget-friendly option that can still provide a reliable seal for your engine.
When replacing the gaskets, it is critical to thoroughly clean the sealing surfaces on both the cylinder head and the valve cover. Any old gasket material or oil residue can prevent the new gasket from sealing properly. Also, a small dab of RTV silicone sealant is required at the corners where the timing cover meets the cylinder head.
Estimated Replacement Costs
The cost to replace the valve cover gasket set depends heavily on your engine and whether you do the work yourself.
| Item | 4-Cylinder Engine Cost | 3.0L V6 Engine Cost |
|---|---|---|
| Aftermarket Gasket Set | $30 - $70 | $40 - $105 |
| Shop Labor | $140 - $210 | $250 - $600+ |
| Total Professional Job | $170 - $280 | $290 - $700+ |
Note: V6 labor costs are higher because of the need to remove the intake manifold and replace its gaskets as well. Prices are estimates and will vary by location and shop.
Frequently Asked Questions (FAQ)
What comes in a complete valve cover gasket set?
A complete set should include the main valve cover gasket(s), spark plug tube seals (which prevent oil from leaking into the spark plug wells), and new grommets for the valve cover bolts. It's important to replace all these components at the same time.
Do I need to replace my spark plugs if the gaskets are leaking?
If you find oil in the spark plug tubes, you should definitely clean it out. While you're there, it's a great time to replace the spark plugs and the coil-on-plug boots if they are oil-soaked, as the oil can damage them and cause engine misfires.
Are there any recalls for this issue?
There are no specific recalls for the valve cover gasket itself. However, there were recalls on some 2010-2011 models with the 3.0L engine for a fuel leak from the Fuel Delivery Module and on 2001-2004 models for a potential fire risk from the ABS control module. These are separate from the common gasket leak.
Is a valve cover gasket leak the same as a valve stem seal leak?
No, they are very different. A valve cover gasket leak is an external leak from the top of the engine. A valve stem seal leak is an internal leak that allows oil to enter the combustion chamber, causing blue smoke from the exhaust and high oil consumption. A valve stem seal repair is a much more complex and expensive job.
Technical Specifications
OEM Part Numbers: VS50708R 6L8Z6584B VS50801R
Kit includes molded rubber valve cover gasket(s), spark plug tube seals, and valve cover bolt grommets. Material is typically high-grade NBR or ACM rubber designed to resist heat and oil.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Mazda Tribute: