A Guide to the Engine Intake Manifold Gasket Set for the 2007-2013 Chevrolet Avalanche
Keep your Avalanche's V8 engine running strong by understanding when and how to replace your intake manifold gaskets.
- The original plastic intake gaskets are a known failure point; upgrading to a metal-carrier design like Fel-Pro's MS 98016 T is a durable, long-term solution.
- Symptoms often include a rough idle, hissing noises, and Check Engine Light codes for lean conditions (P0171, P0174) or misfires (P0300).
- While the intake is off, it is highly recommended to also replace the knock sensors, knock sensor harness, and the oil pressure sending unit.
- Driving with a significant coolant leak from the gasket can lead to engine overheating and severe internal damage.
Signs of a Failing Intake Manifold Gasket
The original intake manifold gaskets on the 2007-2013 Avalanche are a plastic carrier design that can become brittle and crack over time due to heat and exposure to fuel. When this happens, you may notice several symptoms indicating it's time for a replacement.
Common Failure Symptoms
🎬 Watch a breakdown of common intake manifold gasket failure symptoms.- Rough Idle and Misfires: A vacuum leak from a bad gasket lets unmetered air into the engine, disrupting the air-fuel ratio. This can cause a shaky idle, engine misfires, and may trigger Check Engine Light codes like P0171, P0174 (lean codes), or P0300 (random misfire).
- Engine Overheating: On these engines, coolant can pass near the intake manifold. A failed gasket can cause coolant to leak, leading to low coolant levels and potential engine overheating.
- Coolant Leaks or Loss: You might notice coolant pooling on top of or running down the engine, or your coolant level may drop with no visible drips on the ground. This could mean the coolant is leaking into the engine itself.
- Hissing or Whistling Sounds: A distinct sucking or hissing noise from the engine bay, especially during acceleration, often points to a vacuum leak at the intake gasket.
Choosing the Right Aftermarket Gasket Set
When replacing the intake manifold gaskets, you have a choice between standard OEM-style replacements and upgraded aftermarket designs. For the 2007-2013 Avalanche, many aftermarket options offer significant improvements over the original factory part.
Brand Quality Tiers
- Top Tier (Improved Design): Brands like Fel-Pro offer an upgraded PermaDryPlus gasket (part number MS 98016 T) for this application. This popular upgrade replaces the original plastic frame with a more durable aluminized steel carrier that resists cracking from heat and corrosive fuels. The molded rubber seals are also made from a proprietary compound designed to better resist modern automotive fluids and seal imperfect surfaces. Many mechanics and DIYers consider this a "built like a tank" solution. 🎬 See how to upgrade your gaskets and knock sensors together.
- OEM-Equivalent Quality: ACDelco is the original equipment manufacturer. While their updated designs are reliable, their original plastic-carrier gaskets are the ones known to fail. Victor Reinz is another well-regarded OEM supplier that produces quality gaskets with durable materials designed to resist modern coolants. These brands are a solid choice if you prefer to stick close to the original design but with modern materials.
Pro Tip: Given the known issues with the original plastic gaskets, choosing an upgraded metal-carrier gasket from a brand like Fel-Pro is a highly recommended, long-term repair for your Avalanche.
Estimated Replacement Costs
The cost to replace the intake manifold gasket set can vary based on your location and whether you do the work yourself or hire a professional.
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Gasket Set | $48 - $145 |
| Shop Labor | $266 - $800+ |
| Total Professional Replacement | $314 - $945+ |
Frequently Asked Questions (FAQ)
Do I need to replace the intake manifold bolts?
It is not always required, but it is good practice. Some bolts are torque-to-yield and must be replaced. Always check the service manual for your specific engine. If reusing bolts, ensure they are clean and in good condition.
What else should I replace while the intake manifold is off?
Since the intake manifold covers them, it's a perfect time to inspect and consider replacing the knock sensors and their wiring harness, which are common failure points. Also, check the oil pressure sending unit located at the back of the engine block, as it is very difficult to access otherwise. Cleaning the throttle body is also a good idea.
Is there a recall on the intake manifold gasket for my Avalanche?
No, there are no specific recalls from the NHTSA for the intake manifold gaskets on the 2007-2013 Chevrolet Avalanche. However, there is a technical service bulletin (TSB) related to oil consumption that involves inspecting the intake manifold for pooled oil due to PCV system issues, which may require replacing the valve cover.
How difficult is this job to do myself?
This job is moderately difficult but feasible for an experienced DIYer. It requires disconnecting fuel lines, electrical connectors, and carefully cleaning the gasket surfaces. You will need tools like a torque wrench, socket set, and fuel line disconnect tools. The torque sequence for the manifold bolts is critical and must be followed in two passes to ensure a proper seal.
🎬 Follow this detailed step-by-step guide to replace your intake gasket.Helpful Videos
Technical Specifications
OEM Part Numbers: 89060413
The 2007-2013 Avalanche with the 4.8L, 5.3L, or 6.0L V8 engines use a set of two gaskets. The original design features a plastic carrier, while popular aftermarket upgrades use a more robust steel or aluminum carrier.
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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.
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