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tobiasraven6

Tiburon Hissing on Acceleration

My 2007 Hyundai Tiburon, gasoline engine, is acting up. Mileage is at 120381 km. Check engine light's on, fuel consumption's gone up, and there's a loud hissing when I accelerate. Sounds like an air leak, maybe intake-related? Anyone else had this?

Summary of the thread

A 2007 Hyundai Tiburon was experiencing a hissing noise during acceleration, increased fuel consumption, and an illuminated check engine light, suggesting an air leak, possibly in the intake system. The issue was identified as a leaking intake hose, which was confirmed by a mechanic. Replacing the hose resolved the problem, restoring the vehicle's performance.

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4 comment(s)

hannahlange64

Sounds familiar! I had a similar issue with my Tiburon. The hissing sound when accelerating is a major clue. It definitely points towards an air leak somewhere in the intake system. Have you checked the intake hose for any cracks or disconnections? That's usually the first place to look. Also, give the intake manifold a once-over. Leaks can be tricky to spot, but that hissing sound means there's a decent-sized escape somewhere.

tobiasraven6 (community.author)

Thanks! Where exactly is this hose located and how can I check it?

hannahlange64

Right, so the intake hose runs from the air filter box to the throttle body or, if you have one, the turbocharger inlet. It's usually a corrugated rubber or plastic hose. To check it, visually inspect the entire length for any visible cracks, splits, or damage. Also, feel around the hose while the engine is running (carefully!) to see if you can feel any air escaping. If you're not comfortable doing this yourself, I'd recommend taking it to a workshop. A smoke test can pinpoint even the smallest leaks.

tobiasraven6 (community.author)

Thanks a million, I took your advice and brought it to a local mechanic. Turns out it was exactly what you said: a leaking intake hose. Cost me 100€ to replace. Now she runs like new!

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HYUNDAI

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TIBURON