HVAC hose leak

[Everlastinqs]

I had a very similar symptom recently and it drove me nuts for a few days. Sounded like a rather large vacuum leak. Turns out that the floor drain plug cover on the passenger side floor mat came out. I put it back in and the noise went away.

I hear it stationary too but much quieter. The sound grows with speed. I’ll definitely take a look at that though. Would be great to be that simple lol

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[mwilk012]

I had a very similar symptom recently and it drove me nuts for a few days. Sounded like a rather large vacuum leak. Turns out that the floor drain plug cover on the passenger side floor mat came out. I put it back in and the noise went away.

Yea, sounds like you develop a large exhaust leak and a bad wheel bearing all at once.

 

[alphawolff]

I'm not aware of any vacuum systems behind the dash. Maybe @mwilk012 or @alphawolff can weigh in on that comment. But, if there are no vacuum systems back there, it calls into question the competency or honesty of this shop. Neither of which you would want to be in question if you're opening your wallet to them.

Correct, our HVAC system uses zero vacuum lines or fittings. It's all mechanical actuators.

 

[DaltonGang]

As @Everlastinqs has said, he gets a heavy smell of Coolant when the engine is hot, from inside the cabin. Every work vehicle I've ever driven, that started that smell, it only got worse, until the Heater Core is replaced.

 

[mwilk012]

As @Everlastinqs has said, he gets a heavy smell of Coolant when the engine is hot, from inside the cabin. Every work vehicle I've ever driven, that started that smell, it only got worse, until the Heater Core is replaced.

Eh, any coolant leak under the hood could cause this. It’s not definitive.

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