S80 Air Intake Leak

I have a 2004 Volvo S80 with a gasoline engine. Lately, I've noticed higher fuel consumption and the check engine light came on. There's also a loud hissing sound when accelerating. My mechanic thinks it is an air intake system leak. Has anyone experienced this?

4 comment(s)

Hissing and bad fuel economy? Sounds like a vacuum cleaner trying to suck up a golf ball! Seriously though, that hissing is a classic symptom of an air intake leak. Have you checked the intake hose between the air filter and the intake manifold? Those things crack and leak like crazy, especially on older cars. How many kilometers are on the car?

The car has 64783 km. Is it possible to patch the intake hose temporarily, or is replacement the only real option?

Patching might work in a pinch, but it's like putting a band-aid on a broken leg – temporary at best. The crack will just keep expanding. You're better off replacing it to avoid further issues. If you aren't comfortable doing this yourself, go to the workshop. They will quickly find the leak in the air intake system.

Thanks for the advice. I replaced the intake hose; the total repair cost was around 100€. That solved the problem.

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