Why does my new air intake hose keep ripping in the exact same spot?
An air intake hose keeps tearing repeatedly when the engine mounts are worn, causing excess engine movement that violently stresses the rubber in the same location. This persistent flexing strains the material until it splits again, making simple part replacements useless until the underlying mechanical movement is fixed.
What the numbers show
Counted from the threads quoted below. How we count
- This comes up 9.9× more often in r/AskMechanics than across the site as a whole.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1replacing the hose with a new oneDid this help you?
- 2considering a silicone solutionDid this help you?
- 3Applying Flex SealDid this help you?
- 4Pulling the hose out to inspect the depth of the crack before decidingDid this help you?
- 5Checking or replacing the air filterDid this help you?
- 6Installing anti-collapse springs inside the hoseDid this help you?
- 7Replacing the whole intake manifold as recommended by the shopDid this help you?
- 8Using generic or bulk breather hose from a local auto parts store instead of an original molded hoseDid this help you?
- 9Break the remaining old hose fully off and attach standard rubber tubing or PCV/emissions hose cut to length using hose clamps.Did this help you?
- 10Using metallic flashing tape as a safer alternative to regular tapeDid this help you?
- 11Using duct tape as a temporary fixDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“A few weeks ago my 62k km 2016 F20 with the B38 engine threw an amber drivetrain warning after around 2 hours of highway driving.”source ↗
“They showed me that the marked pipe on the passenger side of the engine compartment (which I did some research about and it’s probably the turbo charge hose) was collapsing when the engine is revved to 5-6k rpm.”source ↗
“I do suspect the pipe because it is soft, I can easily compress it with just 1-2 fingers.”source ↗
“Looking for the specific hose that goes from the front valve cover to the air box I keep getting the PVC valve hose, but that’s not it.”source ↗
“Is there some kind of tape I can use to patch this?”source ↗
“I did a smoke test recently and found my intake manifold gaskets were bad, replaced them, along with the throttle body gasket, now I have a leak from where the boot meets the throttle body.”source ↗
“The part as a whole is like $100.”source ↗
“Hey everyone, my air intake hose on my 2012 Cadillac CTS keep ripping and in the same spot (this is the second time it’s happened). We replaced the first one but it did it again and I’m not sure what’s causing it?”source ↗
“I found a small crack in my 2007 Honda accord 2.4L today. Is this something that I should replace soon or no? It seems to be the original one since it has the Honda logo on it. Also, could this be something I'd be able to do or should I have a mechanic do this?”source ↗
“sorry idk anything about cars”source ↗
“Yeah, I'm pretty concerned about it. Good thing they're only 17 dollars on Amazon. Planning on replacing it sometime this weekend.”source ↗
“Hose cracked like nothing. What are my options of type of hose to replace?”source ↗
“Can just cut to length and attach with clamps but not sure what kind of hose is needed going to this valve. Thanks”source ↗
“I had the same type of hose break on my Cadillac cts.”source ↗
Where this came up
People with this problem also raised
- 7What is the hose from the air intake to the valve cover called?
- 3How to replace a roof pipe boot with a cap
- 13How do you fix a leaking metal brake line?
- 2Why does my radiator coolant hose keep popping off?
- 3Can you replace a broken plastic sink hose connector?
- 3Gasket coating chipping off during cleaning