Parts for your 2006 Honda Odyssey-Manifold gasket

2006 Honda Odyssey manifold gasket — what it does and when to replace it

Yes, a manifold gasket is absolutely used on the 2006 Honda Odyssey. The Honda Odyssey 2005–2010 Service Manual and Honda Genuine Parts catalogue both show multiple manifold gaskets for this model: upper and lower intake manifold gaskets (plenum and intake runner) and exhaust manifold gaskets at the cylinder heads, plus sealing rings further down the exhaust. Major aftermarket catalogues (Fel‑Pro, Victor Reinz) also list dedicated intake and exhaust manifold gasket sets specifically for the 2006 Odyssey’s J35 V6, confirming the part’s relevance.

On this Odyssey, manifold gaskets keep things sealed where it matters most. Intake manifold gaskets stop unmetered air sneaking into the engine, so the ECU’s fuel trims stay tidy and the V6 idles smoothly. Exhaust manifold gaskets keep hot exhaust gases in the runners on their way to the cat, preventing that tell‑tale ticking on cold start and any whiff of fumes under the bonnet.

There’s no set replacement interval from Honda, these gaskets are replaced when they leak or any time the manifold is removed for other work. Typical signs it’s time to sort them out include:

• Rough idle, high idle, or lean codes (P0171/P0174) after warm‑up
• Hissing (intake) or a ticking/putt‑putt noise on cold start (exhaust)
• Fuel economy drop, hesitation, or exhaust odour in the cabin
• Soot marks around the exhaust manifold or a noticeable vacuum hiss near the intake

When replacing intake manifold gaskets on the 2006 Odyssey, it pays to clean both mating surfaces thoroughly, check the plastic upper plenum for warpage, and follow the Honda tightening sequence and torque spec from the service manual. New gaskets should be used every time, don’t smear RTV unless Honda specifically calls for it in that joint. It’s a good moment to refresh throttle body and PCV hoses, and to inspect the EGR passages and coolant lines that run to the throttle body.

On the exhaust side, soak fasteners with penetrant ahead of time, consider new studs and self‑locking nuts, and refit heat shields correctly. A small leak can get louder quickly and may risk nearby components, so don’t leave it too long. Quality OEM gaskets or reputable aftermarket brands are worth the few extra dollars for a long‑lasting seal.

Popular questions

Do both intake and exhaust manifold gaskets exist on a 2006 Odyssey?
Yes. It uses multiple intake manifold gaskets (upper plenum and lower runner) plus exhaust manifold gaskets at each cylinder head. Parts catalogues and the Honda manual list them separately, so make sure you order the right set for the job you’re doing.

How often should manifold gaskets be replaced on this model?
There’s no fixed kilometre interval. They’re replaced when leaking, or proactively any time the manifold comes off for other work. If the vehicle shows lean codes, idle issues, or exhaust ticking, test and replace as needed rather than waiting for a service milestone.

Is it safe to drive with a leaking manifold gasket?
Not ideal. An intake leak can run the engine lean, causing rough running and potential long‑term damage. An exhaust leak can let fumes into the cabin and may overheat nearby components. It’s usually safe to limp to a workshop, but best practice is to fix it promptly.