A Chevrolet Impala Owner's Guide to the Engine Intake Manifold Gasket Set (2013-2020)
Learn to spot the signs of a failing intake gasket on your 10th generation Impala before it causes bigger problems.
- The primary symptom of failure on a 2013-2020 Impala is a vacuum leak, not a coolant leak, leading to a rough idle and lean codes (P0171/P0174).
- Before replacing the gasket on a 2.5L engine, check for loose intake manifold bolts, which is a known issue that can cause the same symptoms.
- High-quality aftermarket brands like Fel-Pro and Victor Reinz are reliable, cost-effective alternatives to OEM gaskets for this repair.
- Ensure you purchase the correct gasket set for your specific engine, as the 2.5L 4-cylinder and 3.6L V6 parts are not interchangeable.
Is Your Impala Showing Signs of a Bad Intake Gasket?
A failing intake manifold gasket on the 2013-2020 Impala usually causes a vacuum leak. This means unmeasured air gets into the engine, throwing off the computer's calculations. Unlike some older GM vehicles, a coolant leak from this specific gasket is not a common failure point for these engines.
Common symptoms include:
- Rough Idling: Your car might shake or vibrate when you're stopped at a light. This happens because the extra air makes the engine's idle unstable.
- Check Engine Light: A vacuum leak will almost always trigger a "System Too Lean" code, like P0171 or P0174, lighting up your dashboard.
- Hissing Noise: You might hear a distinct hissing or whistling sound from the engine bay as air gets sucked through the broken gasket seal.
- Poor Fuel Economy: When the air-fuel mixture is wrong, the engine becomes less efficient, and you'll notice you're filling up the tank more often.
- Reduced Power: The car may feel sluggish or hesitate when you accelerate.
A Known Issue for the 2.5L Engine
Some owners of the 2.5L Ecotec engine have found that the intake manifold bolts can loosen over time. This creates a vacuum leak that mimics a failed gasket. Before replacing the gasket, it's a good pro-tip to check if these bolts are simply loose and need to be re-torqued to factory specifications.
Choosing the Right Aftermarket Gasket Set
When it comes to gaskets, you don't want to cut corners. A failed gasket means doing the whole job over again. Luckily, the aftermarket offers excellent options that often meet or exceed original equipment (OE) quality. For your Impala, brands like Fel-Pro and Victor Reinz are top-tier choices.
- Fel-Pro: A highly respected name in the US aftermarket, Fel-Pro gaskets are known for being designed for the "real world" repair environment. They often engineer their gaskets to fix known OE problems and seal imperfect surfaces.
- Victor Reinz: Often an original equipment supplier to many car brands, Victor Reinz gaskets are known for their high-quality materials and precise fit. Many professional mechanics trust them for their reliability.
- Reinz: Often seen as Mahle/Reinz, this is another German brand with a strong OE background, similar in quality to Victor Reinz.
For this specific repair, both Fel-Pro and Victor Reinz are excellent choices that you can trust. The decision could come down to price or availability. There is no significant quality difference for this application that should make you choose one over the other.
Cost Breakdown for Replacement
The cost to replace the intake manifold gasket set can vary. The parts themselves are not very expensive, but the labor to access them makes up most of the cost. Here is a general breakdown:
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Gasket Set | $56 - $66 |
| New OEM Gasket Set | $120 - $185 |
| Shop Labor | $182 - $389 |
| Total Professional Replacement | $250 - $455+ |
Frequently Asked Questions
Can I replace the intake manifold gasket myself?
For an experienced DIY mechanic, this is a manageable job. It requires removing the upper intake manifold and several other components to gain access. It typically takes 2-4 hours. If you are not comfortable identifying and disconnecting sensors, fuel lines, and electrical connectors, it is best to leave this job to a professional.
What happens if I don't replace a bad gasket?
Ignoring a bad intake manifold gasket will lead to a persistent check engine light, poor performance, and bad fuel economy. Over time, running a lean air-fuel mixture can cause damage to other engine components, like the catalytic converter, leading to much more expensive repairs.
Are there any recalls for this part?
No, there are no specific recalls from the NHTSA for the intake manifold gaskets on the 2013-2020 Chevrolet Impala.
How do I know which gasket set my Impala needs?
The 2013-2020 Impala came with two primary engines: a 2.5L 4-cylinder and a 3.6L V6. You must buy the gasket set that matches your specific engine. The parts are not interchangeable. Always verify the fitment for your vehicle's year and engine size before purchasing.
Technical Specifications
OEM Part Numbers: 92264705 12647263
The 10th generation Chevrolet Impala (2014-2020) and the 2013 Impala Limited were available with a 2.5L LCV 4-cylinder or a 3.6L LFX V6 engine. The intake manifold gaskets for these engines are molded rubber seals designed primarily to prevent vacuum leaks. They do not typically seal major coolant passages, making external or internal coolant leaks from this gasket uncommon.
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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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